TY  - CHAP
AU  - Pavlović, Miroslav M.
AU  - Pavlović, Miomir G.
AU  - Bojanić, Vaso
AU  - Gajić, Anto
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4554
AB  - New biopolymers’ materials, suitable for the adsorption of noble metal ions, were synthesized by chemical and electrochemical modification of biopolymers. Optimization of cellulose acrylate synthesis by reaction with sodium cellulosate and acryloyl chloride was carried out. Optimal conditions for conducting the synthesis reaction of cellulose acrylate were as follows: the molar ratio of cellulose/potassium-t-butoxide/acryloyl chloride was 1:3:10 and the optimal reaction time was 10 h. On the basis of elemental analysis with optimal conditions for conducting the reaction of cellulose acrylate, the percentage of substitution of glucose units in cellulose was Y = 80.7%, and the degree of substitution of cellulose acrylate of DS = 2.4 was determined. The grafting reaction of acrylate vinyl monomers onto cellulose in acetonitrile with azoisobutyronitrile initiator in a nitrogen atmosphere was performed, by mixing for 5 h at acetonitrile boiling temperature. Radical copolymerizations of synthesized cellulose acrylate and 4-vinylpyridine, 1-vinylimidazole, 1-vinyl-2-pyrrolidinone, 9-vinylcarbazole, cellulosepoly-4-vinylpyridine, cellulose-poly-1-vinylimidazole, cellulose-poly-1-vinyl-2-pyrrolidinone and cellulose-poly-9-vinylcarbazole were performed. Cellulose acrylate and cellulose grafted copolymers were confirmed by IR spectroscopy, based on
elementary analysis and the characteristics of grafted copolymers of cellulose were determined. The mass share of grafted copolymers, X, the relationship of derivative parts/cellulose vinyl group, Z, and the degree of grafting copolymers of cellulose (mass%) were determined. The grafed copolymers of cellulose with 4-vinylpyridine and 1-
vinylimidazole were reacted with methyl iodide and the corresponding 1 -
methylpyridinium iodide and 3-methylimidazolium iodide copolymers of cellulose were
obtained. Copolymers were transformed into new polymeric reagents, differing in anions
(ClO4-, CF3COO-, NO3-, p-TsO-, BF4-, PF6-) by usage of different supporting electrolyte carrying the desired anions through the ion-exchange-electrochemical oxidation of the released iodide at a controlled anodic potential. The thermal stability of cellulose and some of its grafed copolymers with 4-vinyl pyridine in ionic form were studied in nitrogen atmosphere by non-isothermal thermogravimetry in the temperature interval 50-800°C at heating rate of 10°C/min and 80°C/min. Comparasion of the obtained thermogravimetric curves indicated the different thermal stability of cellulose, cellulose-4- vinylpyridine and its ionic derivates. The starting cellulose sample has had the highest thermal stability, while the copolymers in ionic form started to degrade at lower temperatures. There were also differences in the amount of carbonaceous residues at 550°C and 760°C. Grafted copolymers of cellulose were synthesized and tested for sorption of gold and palladium from acid aqueous solutions. The following grafted copolymers cellulose-poly-4-vinyl-pyridine, cellulose-1-methyl-poly-4-vinyl-pyridinium iodide and cellulose-1-methyl-poly-4-vinyl pyridinium three fluoroacetate were synthesized. Characteristcs of grafted cellulose copolymers such as: capacity, degree of sorption in the solution from the process for copper electrolysis were determined. The quantity of gold and palladium were determined by atomic apsorption spectrophotometry. The degree of sorption of all samples of grafted copolymers was more than 99 mass %, indicating that the sorption was good and took place in a period of one hour. Cellulosepoly-4-vinyl-pyridine showed the selectivity due to sepatarion of Au and Pd in regard to Cu and Fe. The capacities of cellulose copolymers for Au and Pd sorptions were determined. Grafted cellulose copolymers suitable for sorption of gold have potential to be used in cancer nanotechnology. Optimization of cellulose acrylate synthesis has been applied as a model for the synthesis of the grafted copolymers of lignin and tannin with vinyl monomers and it can be applied on lignocellulose, starch, chitin, chitosan, proteins and peptides. Synthesis and characterization of electroconductive composite materials prepared by the compression molding of mixtures of lignocellulose and electrochemically deposited copper powder under different pressures is presented. Investigation of the influence of particle size on conductivity and percolation threshold of obtained composites was carried out. Electrodeposited copper powder content was varied from
2.0-29.8 vol. %. Analyses of the most significant properties of individual components and prepared composites included structural and morphological analysis and measurements of hardness and electrical conductivity. The significant increase of the electrical conductivity could be observed as the copper powder content reached the percolationthreshold. The packaging effect and effective interpartical contact with smaller, highly porous, highly dendritic particles with large values of specific area lead to “movement” of percolation threshold towards lower filler content, which for the particles <45 μm and highest processing pressure of 27 MPa was 7.2% (v/v). In the investigated range of electrodeposited copper powder concentrations and applied pressures, the increase of the electrical conductivity of composites was as much as fourteen orders of magnitude. It was
found that this transition occured at lower volume fractions for electrodeposited copper powder than stated in the literature which could be due to the filler with large specific area.
PB  - New York, USA : Nova Science Publishers Inc.
T2  - Metals and Metal-Based Electrocatalytic Materials for Alternative Energy Sources and Electronics
T1  - Chemical and Electrochemical Synthesis of Contemporary Materials Based on Biopolymers and Metals
SP  - 241
EP  - 301
UR  - https://hdl.handle.net/21.15107/rcub_cer_4554
ER  - 

@inbook{
author = "Pavlović, Miroslav M. and Pavlović, Miomir G. and Bojanić, Vaso and Gajić, Anto",
year = "2019",
abstract = "New biopolymers’ materials, suitable for the adsorption of noble metal ions, were synthesized by chemical and electrochemical modification of biopolymers. Optimization of cellulose acrylate synthesis by reaction with sodium cellulosate and acryloyl chloride was carried out. Optimal conditions for conducting the synthesis reaction of cellulose acrylate were as follows: the molar ratio of cellulose/potassium-t-butoxide/acryloyl chloride was 1:3:10 and the optimal reaction time was 10 h. On the basis of elemental analysis with optimal conditions for conducting the reaction of cellulose acrylate, the percentage of substitution of glucose units in cellulose was Y = 80.7%, and the degree of substitution of cellulose acrylate of DS = 2.4 was determined. The grafting reaction of acrylate vinyl monomers onto cellulose in acetonitrile with azoisobutyronitrile initiator in a nitrogen atmosphere was performed, by mixing for 5 h at acetonitrile boiling temperature. Radical copolymerizations of synthesized cellulose acrylate and 4-vinylpyridine, 1-vinylimidazole, 1-vinyl-2-pyrrolidinone, 9-vinylcarbazole, cellulosepoly-4-vinylpyridine, cellulose-poly-1-vinylimidazole, cellulose-poly-1-vinyl-2-pyrrolidinone and cellulose-poly-9-vinylcarbazole were performed. Cellulose acrylate and cellulose grafted copolymers were confirmed by IR spectroscopy, based on
elementary analysis and the characteristics of grafted copolymers of cellulose were determined. The mass share of grafted copolymers, X, the relationship of derivative parts/cellulose vinyl group, Z, and the degree of grafting copolymers of cellulose (mass%) were determined. The grafed copolymers of cellulose with 4-vinylpyridine and 1-
vinylimidazole were reacted with methyl iodide and the corresponding 1 -
methylpyridinium iodide and 3-methylimidazolium iodide copolymers of cellulose were
obtained. Copolymers were transformed into new polymeric reagents, differing in anions
(ClO4-, CF3COO-, NO3-, p-TsO-, BF4-, PF6-) by usage of different supporting electrolyte carrying the desired anions through the ion-exchange-electrochemical oxidation of the released iodide at a controlled anodic potential. The thermal stability of cellulose and some of its grafed copolymers with 4-vinyl pyridine in ionic form were studied in nitrogen atmosphere by non-isothermal thermogravimetry in the temperature interval 50-800°C at heating rate of 10°C/min and 80°C/min. Comparasion of the obtained thermogravimetric curves indicated the different thermal stability of cellulose, cellulose-4- vinylpyridine and its ionic derivates. The starting cellulose sample has had the highest thermal stability, while the copolymers in ionic form started to degrade at lower temperatures. There were also differences in the amount of carbonaceous residues at 550°C and 760°C. Grafted copolymers of cellulose were synthesized and tested for sorption of gold and palladium from acid aqueous solutions. The following grafted copolymers cellulose-poly-4-vinyl-pyridine, cellulose-1-methyl-poly-4-vinyl-pyridinium iodide and cellulose-1-methyl-poly-4-vinyl pyridinium three fluoroacetate were synthesized. Characteristcs of grafted cellulose copolymers such as: capacity, degree of sorption in the solution from the process for copper electrolysis were determined. The quantity of gold and palladium were determined by atomic apsorption spectrophotometry. The degree of sorption of all samples of grafted copolymers was more than 99 mass %, indicating that the sorption was good and took place in a period of one hour. Cellulosepoly-4-vinyl-pyridine showed the selectivity due to sepatarion of Au and Pd in regard to Cu and Fe. The capacities of cellulose copolymers for Au and Pd sorptions were determined. Grafted cellulose copolymers suitable for sorption of gold have potential to be used in cancer nanotechnology. Optimization of cellulose acrylate synthesis has been applied as a model for the synthesis of the grafted copolymers of lignin and tannin with vinyl monomers and it can be applied on lignocellulose, starch, chitin, chitosan, proteins and peptides. Synthesis and characterization of electroconductive composite materials prepared by the compression molding of mixtures of lignocellulose and electrochemically deposited copper powder under different pressures is presented. Investigation of the influence of particle size on conductivity and percolation threshold of obtained composites was carried out. Electrodeposited copper powder content was varied from
2.0-29.8 vol. %. Analyses of the most significant properties of individual components and prepared composites included structural and morphological analysis and measurements of hardness and electrical conductivity. The significant increase of the electrical conductivity could be observed as the copper powder content reached the percolationthreshold. The packaging effect and effective interpartical contact with smaller, highly porous, highly dendritic particles with large values of specific area lead to “movement” of percolation threshold towards lower filler content, which for the particles <45 μm and highest processing pressure of 27 MPa was 7.2% (v/v). In the investigated range of electrodeposited copper powder concentrations and applied pressures, the increase of the electrical conductivity of composites was as much as fourteen orders of magnitude. It was
found that this transition occured at lower volume fractions for electrodeposited copper powder than stated in the literature which could be due to the filler with large specific area.",
publisher = "New York, USA : Nova Science Publishers Inc.",
journal = "Metals and Metal-Based Electrocatalytic Materials for Alternative Energy Sources and Electronics",
booktitle = "Chemical and Electrochemical Synthesis of Contemporary Materials Based on Biopolymers and Metals",
pages = "241-301",
url = "https://hdl.handle.net/21.15107/rcub_cer_4554"
}

Pavlović, M. M., Pavlović, M. G., Bojanić, V.,& Gajić, A.. (2019). Chemical and Electrochemical Synthesis of Contemporary Materials Based on Biopolymers and Metals. in Metals and Metal-Based Electrocatalytic Materials for Alternative Energy Sources and Electronics
New York, USA : Nova Science Publishers Inc.., 241-301.
https://hdl.handle.net/21.15107/rcub_cer_4554

Pavlović MM, Pavlović MG, Bojanić V, Gajić A. Chemical and Electrochemical Synthesis of Contemporary Materials Based on Biopolymers and Metals. in Metals and Metal-Based Electrocatalytic Materials for Alternative Energy Sources and Electronics. 2019;:241-301.
https://hdl.handle.net/21.15107/rcub_cer_4554 .

Pavlović, Miroslav M., Pavlović, Miomir G., Bojanić, Vaso, Gajić, Anto, "Chemical and Electrochemical Synthesis of Contemporary Materials Based on Biopolymers and Metals" in Metals and Metal-Based Electrocatalytic Materials for Alternative Energy Sources and Electronics (2019):241-301,
https://hdl.handle.net/21.15107/rcub_cer_4554 .

TY  - CONF
AU  - Riđošić, Marija
AU  - Tomić, Milorad
AU  - Pavlović, Miroslav
AU  - Bojanić, Vaso
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6615
AB  - In this paper chemical and electrochemical treatment of aluminium and measurement of roughness were carried out. Before chemical or electrochemical treatment of aluminium samples chemical preparation is done to remove oxide coating on surface. Three solutions are used for chemical and two solutions for electrochemical treatment. All used solutions give good results, because after chemical and electrochemical treatment the roughness of surface is decrease for all samples. It is shown by measurements of surface roughness. The surface of aluminium has specific color and visual appearance after treatments. Because of various colours, aluminium can be used in different enterer or exterior, depending of the needs of the market. Some of used solutions are commercial, which is used in d.o.o “Alpro” Vlasenica. Increase of time of treatments leads to decrease of the roughness of surface. The best results were obtained in solutions (H1) and (H2) of all used solutions for chemical and electrochemical treatments of aluminium surface. The samples of aluminium treated in solutions (H1) and (H2) have lower roughness of surface and its value is 0,235-0,268µm. The most intense color is obtained during treatment of samples in solutions (H1) and (H2), i.e. by chemical treatment of aluminium samples.
AB  - U ovom radu je vršena hemijska i elektrohemijska obrada aluminijuma, nakon čega je merena hrapavost uzoraka. Pre hemijske ili elektrohemijske obrade uzoraka aluminijuma potrebno je izvršiti hemijsku pripremu i ukloniti zaštitnu oksidnu opnu. Za hemijsku obradu korišćena su tri, a za elektrohemijsku obradu dva rastvora. Svih pet korišćenih rastvora daju dobre rezultate, jer nakon hemijske i elektrohemijske obrade dolazi do smanjenja površinske hrapavosti. To pokazuju izvršena merenja površinske hrapavosti svih uzoraka. Takođe, nakon tretmana u svakom od rastvora dobija se i specifična boja i različit vizuelni izgled površine aluminijuma. U zavisnosti od boje, aluminijum se može uklapati u različite enterijere i eksterijere u zavisnosti od zahteva tržišta. Neki od korišćenih rastvora su komercijalni rastvori koji se već koriste u d.o.o „Alpro“ Vlasenica. Sa povećanjem vremena obrade dolazi do smanjenja hrapavosti uzoraka aluminijuma. Od pet korišćenih rastvora za hemijsko i elektrohemijsko bojenje aluminijuma, najbolje rezultate pokazali su rastvori (H1) i (H2). Uzorci aluminijuma obrađeni u ovim rastvorima imaju najmanju hrapavosti i ona se kreće od 0,235-0,268µm. Najintezivnija boja je dobijena prilikom obrade uzoraka u rastvoru (H1) i (H2)tj. pri hemijskoj obradi uzoraka aluminijuma.
PB  - Belgrade, Serbia : Serbian Society of Corrosion and Materials Protection UISKOZAM / Beograd, Srbija : Udruženje inženjera Srbije za koroziju i zaštitu materijala UISKOZAM
C3  - Proceedings - XIX YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, September 12-15, Tara Mountain, Serbia
T1  - The roughness of surface of aluminum after chemical and  electrochemical treatment
T1  - Hrapavost površine aluminijuma nakon hemijske i elektrohemijske obrade
SP  - 271
EP  - 279
UR  - https://hdl.handle.net/21.15107/rcub_cer_6615
ER  - 

@conference{
author = "Riđošić, Marija and Tomić, Milorad and Pavlović, Miroslav and Bojanić, Vaso",
year = "2017",
abstract = "In this paper chemical and electrochemical treatment of aluminium and measurement of roughness were carried out. Before chemical or electrochemical treatment of aluminium samples chemical preparation is done to remove oxide coating on surface. Three solutions are used for chemical and two solutions for electrochemical treatment. All used solutions give good results, because after chemical and electrochemical treatment the roughness of surface is decrease for all samples. It is shown by measurements of surface roughness. The surface of aluminium has specific color and visual appearance after treatments. Because of various colours, aluminium can be used in different enterer or exterior, depending of the needs of the market. Some of used solutions are commercial, which is used in d.o.o “Alpro” Vlasenica. Increase of time of treatments leads to decrease of the roughness of surface. The best results were obtained in solutions (H1) and (H2) of all used solutions for chemical and electrochemical treatments of aluminium surface. The samples of aluminium treated in solutions (H1) and (H2) have lower roughness of surface and its value is 0,235-0,268µm. The most intense color is obtained during treatment of samples in solutions (H1) and (H2), i.e. by chemical treatment of aluminium samples., U ovom radu je vršena hemijska i elektrohemijska obrada aluminijuma, nakon čega je merena hrapavost uzoraka. Pre hemijske ili elektrohemijske obrade uzoraka aluminijuma potrebno je izvršiti hemijsku pripremu i ukloniti zaštitnu oksidnu opnu. Za hemijsku obradu korišćena su tri, a za elektrohemijsku obradu dva rastvora. Svih pet korišćenih rastvora daju dobre rezultate, jer nakon hemijske i elektrohemijske obrade dolazi do smanjenja površinske hrapavosti. To pokazuju izvršena merenja površinske hrapavosti svih uzoraka. Takođe, nakon tretmana u svakom od rastvora dobija se i specifična boja i različit vizuelni izgled površine aluminijuma. U zavisnosti od boje, aluminijum se može uklapati u različite enterijere i eksterijere u zavisnosti od zahteva tržišta. Neki od korišćenih rastvora su komercijalni rastvori koji se već koriste u d.o.o „Alpro“ Vlasenica. Sa povećanjem vremena obrade dolazi do smanjenja hrapavosti uzoraka aluminijuma. Od pet korišćenih rastvora za hemijsko i elektrohemijsko bojenje aluminijuma, najbolje rezultate pokazali su rastvori (H1) i (H2). Uzorci aluminijuma obrađeni u ovim rastvorima imaju najmanju hrapavosti i ona se kreće od 0,235-0,268µm. Najintezivnija boja je dobijena prilikom obrade uzoraka u rastvoru (H1) i (H2)tj. pri hemijskoj obradi uzoraka aluminijuma.",
publisher = "Belgrade, Serbia : Serbian Society of Corrosion and Materials Protection UISKOZAM / Beograd, Srbija : Udruženje inženjera Srbije za koroziju i zaštitu materijala UISKOZAM",
journal = "Proceedings - XIX YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, September 12-15, Tara Mountain, Serbia",
title = "The roughness of surface of aluminum after chemical and  electrochemical treatment, Hrapavost površine aluminijuma nakon hemijske i elektrohemijske obrade",
pages = "271-279",
url = "https://hdl.handle.net/21.15107/rcub_cer_6615"
}

Riđošić, M., Tomić, M., Pavlović, M.,& Bojanić, V.. (2017). The roughness of surface of aluminum after chemical and  electrochemical treatment. in Proceedings - XIX YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, September 12-15, Tara Mountain, Serbia
Belgrade, Serbia : Serbian Society of Corrosion and Materials Protection UISKOZAM / Beograd, Srbija : Udruženje inženjera Srbije za koroziju i zaštitu materijala UISKOZAM., 271-279.
https://hdl.handle.net/21.15107/rcub_cer_6615

Riđošić M, Tomić M, Pavlović M, Bojanić V. The roughness of surface of aluminum after chemical and  electrochemical treatment. in Proceedings - XIX YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, September 12-15, Tara Mountain, Serbia. 2017;:271-279.
https://hdl.handle.net/21.15107/rcub_cer_6615 .

Riđošić, Marija, Tomić, Milorad, Pavlović, Miroslav, Bojanić, Vaso, "The roughness of surface of aluminum after chemical and  electrochemical treatment" in Proceedings - XIX YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, September 12-15, Tara Mountain, Serbia (2017):271-279,
https://hdl.handle.net/21.15107/rcub_cer_6615 .

TY  - CONF
AU  - Pantović Pavlović, Marijana
AU  - Gajić, Anto
AU  - Stevanović, Jasmina
AU  - Bojanić, Vaso
AU  - Nikolić, Nebojša D.
AU  - Pavlović, Miroslav
AU  - Pavlović, Miomir
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6568
AB  - Ovaj članak se bavi sintezom i karakterizacijom elektroprovodnih kompozitnih materijala toplim moldovanjem mešavina polimetilmetakrilata (PMMA) i elektrohemijski dobijenog bakarnog praha, kao i ispitivanjem uticaja morfologije čestica na provodnost i perkolacioni prag dobijenih kompozita i termijske karakteristike dobijenih kompozita. Udeo elektrohemijski dobijenog bakarnog praha je variran od 0.5 – 8.8 vol%. Analiza najznačajnijih osobina kako pojedinačnih komponenti tako i dobijenih kompozita je uključivala strukturnu analizu i merenja električne provodljivosti. Značajan porast električne provodljivosti može se primetiti kad sadržaj bakarnog praha u kompozitima dostigne perkolacioni prag što je iznosilo na 2.98 vol%. U ispitivanom opsegu koncentracija elektrohemijski dobijenog bakarnog praha u kompozitima i pritiscima prerade porast električne provodljivosti je iznosio čak šesnaest redova veličine. Primećeno je da se ovaj prelaz javlja pri nižim vrednostima udela punioca nego što je navedeno u literaturi, što može biti posledica upotrebe punioca sa velikim vrednostima specifične površine.
AB  - This article is concerned with synthesis and characterization of electroconductive composite materials prepared by hot molding of mixtures of PMMA and electrochemically deposited copper powder and investigation of the influence of particle morphology on conductivity and percolation threshold of obtained composites and thermal characteristics. Electrodeposited copper powder content was varied from 0.5-8.8 vol%. Analysis of the most significant properties of individual components and prepared composites included structural analysis and measurements of electrical conductivity. The significant increase of the electrical conductivity can be observed as the copper powder content reaches the percolation threshold at 2.98 vol%. In the investigated range of electrodeposited copper powder concentrations and applied pressures the increase of the electrical conductivity of composites is as much as sixteen orders of magnitude. It was found that this transition occurs at lower volume fractions than stated in the literature which can be due to the filler with high specific area.
PB  - Belgrade, Serbia : Serbian Society of Corrosion and Materials Protection UISKOZAM / Beograd, Srbija : Udruženje inženjera Srbije za koroziju i zaštitu materijala UISKOZAM
C3  - Proceedings - XVIII YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, April 12-15, Tara Mountain, Serbia
T1  - Električna provodnost PMMA kompozita punjenih bakarnim prahom
T1  - Electrical conductivity of PMMA composites filled with copper powder
SP  - 283
EP  - 289
UR  - https://hdl.handle.net/21.15107/rcub_cer_6568
ER  - 

@conference{
author = "Pantović Pavlović, Marijana and Gajić, Anto and Stevanović, Jasmina and Bojanić, Vaso and Nikolić, Nebojša D. and Pavlović, Miroslav and Pavlović, Miomir",
year = "2016",
abstract = "Ovaj članak se bavi sintezom i karakterizacijom elektroprovodnih kompozitnih materijala toplim moldovanjem mešavina polimetilmetakrilata (PMMA) i elektrohemijski dobijenog bakarnog praha, kao i ispitivanjem uticaja morfologije čestica na provodnost i perkolacioni prag dobijenih kompozita i termijske karakteristike dobijenih kompozita. Udeo elektrohemijski dobijenog bakarnog praha je variran od 0.5 – 8.8 vol%. Analiza najznačajnijih osobina kako pojedinačnih komponenti tako i dobijenih kompozita je uključivala strukturnu analizu i merenja električne provodljivosti. Značajan porast električne provodljivosti može se primetiti kad sadržaj bakarnog praha u kompozitima dostigne perkolacioni prag što je iznosilo na 2.98 vol%. U ispitivanom opsegu koncentracija elektrohemijski dobijenog bakarnog praha u kompozitima i pritiscima prerade porast električne provodljivosti je iznosio čak šesnaest redova veličine. Primećeno je da se ovaj prelaz javlja pri nižim vrednostima udela punioca nego što je navedeno u literaturi, što može biti posledica upotrebe punioca sa velikim vrednostima specifične površine., This article is concerned with synthesis and characterization of electroconductive composite materials prepared by hot molding of mixtures of PMMA and electrochemically deposited copper powder and investigation of the influence of particle morphology on conductivity and percolation threshold of obtained composites and thermal characteristics. Electrodeposited copper powder content was varied from 0.5-8.8 vol%. Analysis of the most significant properties of individual components and prepared composites included structural analysis and measurements of electrical conductivity. The significant increase of the electrical conductivity can be observed as the copper powder content reaches the percolation threshold at 2.98 vol%. In the investigated range of electrodeposited copper powder concentrations and applied pressures the increase of the electrical conductivity of composites is as much as sixteen orders of magnitude. It was found that this transition occurs at lower volume fractions than stated in the literature which can be due to the filler with high specific area.",
publisher = "Belgrade, Serbia : Serbian Society of Corrosion and Materials Protection UISKOZAM / Beograd, Srbija : Udruženje inženjera Srbije za koroziju i zaštitu materijala UISKOZAM",
journal = "Proceedings - XVIII YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, April 12-15, Tara Mountain, Serbia",
title = "Električna provodnost PMMA kompozita punjenih bakarnim prahom, Electrical conductivity of PMMA composites filled with copper powder",
pages = "283-289",
url = "https://hdl.handle.net/21.15107/rcub_cer_6568"
}

Pantović Pavlović, M., Gajić, A., Stevanović, J., Bojanić, V., Nikolić, N. D., Pavlović, M.,& Pavlović, M.. (2016). Električna provodnost PMMA kompozita punjenih bakarnim prahom. in Proceedings - XVIII YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, April 12-15, Tara Mountain, Serbia
Belgrade, Serbia : Serbian Society of Corrosion and Materials Protection UISKOZAM / Beograd, Srbija : Udruženje inženjera Srbije za koroziju i zaštitu materijala UISKOZAM., 283-289.
https://hdl.handle.net/21.15107/rcub_cer_6568

Pantović Pavlović M, Gajić A, Stevanović J, Bojanić V, Nikolić ND, Pavlović M, Pavlović M. Električna provodnost PMMA kompozita punjenih bakarnim prahom. in Proceedings - XVIII YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, April 12-15, Tara Mountain, Serbia. 2016;:283-289.
https://hdl.handle.net/21.15107/rcub_cer_6568 .

Pantović Pavlović, Marijana, Gajić, Anto, Stevanović, Jasmina, Bojanić, Vaso, Nikolić, Nebojša D., Pavlović, Miroslav, Pavlović, Miomir, "Električna provodnost PMMA kompozita punjenih bakarnim prahom" in Proceedings - XVIII YuCorr International Conference, Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection, April 12-15, Tara Mountain, Serbia (2016):283-289,
https://hdl.handle.net/21.15107/rcub_cer_6568 .

TY  - JOUR
AU  - Pavlović, Miroslav
AU  - Gligorić, Miladin
AU  - Ćosović, Vladan
AU  - Bojanić, Vaso
AU  - Tomić, Milorad
AU  - Pavlović, Miomir
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6661
AB  - This article deals with the synthesis and characterization of electroconductive composite materials prepared by the compression molding of mixtures of lignocellulose and electrochemically deposited copper powder under different pressures, as well as with the investigation of the influence of particle morphology on conductivity and the percolation threshold of obtained composites. Electrodeposited copper powder content varied from 1.9-29.4 vol%. The analysis of the most significant properties of prepared composites and its components included impedance spectroscopy (IS) behavior, the measurements of electrical conductivity, scanning electron microscopy (SEM) and structural analysis. It has been shown that the percolation threshold (PT) depends on both particle shape and the type of spatial distribution. IS measurements and SEM analysis have shown that particles that have pronounced grain boundaries have a bit effect on the appearance of electric conductive pathways thus on the composite conductivity. The packaging effect and more pronounced interparticle contact with copper powder particles lead to the “movement” of PT, which, for the particles <45 μm and the highest processing pressure of 27 MPa, was 7.2% (v/v).
AB  - У овом раду приказана је синтеза и карактеризација електропроводних композитних материјала на бази лигноцелулoзе и електрохемијски добијеног бакарног праха добијених хладним пресовањем на различитим притисцима, као и испитивање утицаја морфологије праха на проводност и перколациони праг добијених композита. Запремински удео бакарног праха је варирао 1.9−29.4% (v/v). Анализа најзначајнијих особина припремљених композита обухватала је импедансну спектроскопију (IS), скенирајућу електронску микроскопију (SEM), мерења електричне проводности и структурну анализу. Показано је да перколациони праг (PP) зависи како од облика честица тако и од њиховог просторног уређења. IS мерења и SEM анализе су показали да морфологија честица са изражено великом границом зрна има
велики утицај на појаву електричних проводних слојева. Ефекат паковања и израженији међучестични контакт са честицама бакарног праха доводи до „померања” PP, који је за честице <45 μm и највеćи притисак од 27 MPa износио 7.2% (v/v).
PB  - Banja Luka, Republika Srpska, Bosna i Hercegovina : Akademija nauka i umetnosti Republike Srpske
T2  - Contemporary materials
T1  - Electrical conductivity of the electrodeposited copper powder filled lignocellulose composites
T1  - Електрична проводљивост лигноцелулозних композита пуњених електролитичким бакарним прахом
VL  - V
IS  - 2
SP  - 203
EP  - 211
DO  - 10.7251/COMEN1402203P
ER  - 

@article{
author = "Pavlović, Miroslav and Gligorić, Miladin and Ćosović, Vladan and Bojanić, Vaso and Tomić, Milorad and Pavlović, Miomir",
year = "2014",
abstract = "This article deals with the synthesis and characterization of electroconductive composite materials prepared by the compression molding of mixtures of lignocellulose and electrochemically deposited copper powder under different pressures, as well as with the investigation of the influence of particle morphology on conductivity and the percolation threshold of obtained composites. Electrodeposited copper powder content varied from 1.9-29.4 vol%. The analysis of the most significant properties of prepared composites and its components included impedance spectroscopy (IS) behavior, the measurements of electrical conductivity, scanning electron microscopy (SEM) and structural analysis. It has been shown that the percolation threshold (PT) depends on both particle shape and the type of spatial distribution. IS measurements and SEM analysis have shown that particles that have pronounced grain boundaries have a bit effect on the appearance of electric conductive pathways thus on the composite conductivity. The packaging effect and more pronounced interparticle contact with copper powder particles lead to the “movement” of PT, which, for the particles <45 μm and the highest processing pressure of 27 MPa, was 7.2% (v/v)., У овом раду приказана је синтеза и карактеризација електропроводних композитних материјала на бази лигноцелулoзе и електрохемијски добијеног бакарног праха добијених хладним пресовањем на различитим притисцима, као и испитивање утицаја морфологије праха на проводност и перколациони праг добијених композита. Запремински удео бакарног праха је варирао 1.9−29.4% (v/v). Анализа најзначајнијих особина припремљених композита обухватала је импедансну спектроскопију (IS), скенирајућу електронску микроскопију (SEM), мерења електричне проводности и структурну анализу. Показано је да перколациони праг (PP) зависи како од облика честица тако и од њиховог просторног уређења. IS мерења и SEM анализе су показали да морфологија честица са изражено великом границом зрна има
велики утицај на појаву електричних проводних слојева. Ефекат паковања и израженији међучестични контакт са честицама бакарног праха доводи до „померања” PP, који је за честице <45 μm и највеćи притисак од 27 MPa износио 7.2% (v/v).",
publisher = "Banja Luka, Republika Srpska, Bosna i Hercegovina : Akademija nauka i umetnosti Republike Srpske",
journal = "Contemporary materials",
title = "Electrical conductivity of the electrodeposited copper powder filled lignocellulose composites, Електрична проводљивост лигноцелулозних композита пуњених електролитичким бакарним прахом",
volume = "V",
number = "2",
pages = "203-211",
doi = "10.7251/COMEN1402203P"
}

Pavlović, M., Gligorić, M., Ćosović, V., Bojanić, V., Tomić, M.,& Pavlović, M.. (2014). Electrical conductivity of the electrodeposited copper powder filled lignocellulose composites. in Contemporary materials
Banja Luka, Republika Srpska, Bosna i Hercegovina : Akademija nauka i umetnosti Republike Srpske., V(2), 203-211.
https://doi.org/10.7251/COMEN1402203P

Pavlović M, Gligorić M, Ćosović V, Bojanić V, Tomić M, Pavlović M. Electrical conductivity of the electrodeposited copper powder filled lignocellulose composites. in Contemporary materials. 2014;V(2):203-211.
doi:10.7251/COMEN1402203P .

Pavlović, Miroslav, Gligorić, Miladin, Ćosović, Vladan, Bojanić, Vaso, Tomić, Milorad, Pavlović, Miomir, "Electrical conductivity of the electrodeposited copper powder filled lignocellulose composites" in Contemporary materials, V, no. 2 (2014):203-211,
https://doi.org/10.7251/COMEN1402203P . .

TY  - JOUR
AU  - Pavlović, Miroslav M.
AU  - Pavlović, Miomir
AU  - Ćosović, Vladan
AU  - Bojanić, Vaso
AU  - Nikolić, Nebojša D.
AU  - Aleksić, Radoslav
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1415
AB  - Composites based on polymers with conductive fillers have been gaining more significant roles in a variety of technological domains and they are getting in the research focus of numerous studies as a part of growing research trend. Galvanostatically produced copper powder with high values of specific area was used as filler for synthesis of electroconductive composite materials prepared by the compression molding of mixtures of lignocellulose and electrochemically deposited copper powder. This article is concerned with characterization of these composites. Analysis of the most significant properties of prepared composites and its components included measurements of electrical conductivity, impedance spectroscopy (IS) behavior and structural and morphological analysis. Volume fraction of the copper powder was varied from 2.0-29.8% (v/v). The significant increase of the electrical conductivity can be observed as the copper powder content reaches the percolation threshold (PT). It was shown that PT depends on both particle shape and type of spatial distribution. IS measurements have shown that particle morphology having pronounced grain boundaries has great effect on appearance of electric conductive layers. The packaging effect and more pronounced interpartical contact with copper powder particles lead to "movement" of PT, which for the particles  LT 45 mu m and highest processing pressure of 27 MPa was 7.2% (v/v). IS response of the composites showed existence of electrical conductive layers, each having different resistivity which increases towards interior of the composite.
PB  - Electrochemical Science Group
T2  - International Journal of Electrochemical Science
T1  - Influence of Electrolytic Copper Powder Particle Morphology on Electrical Conductivity of Lignocellulose Composites and Formation of Conductive Pathways
VL  - 9
IS  - 12
SP  - 8355
EP  - 8366
UR  - https://hdl.handle.net/21.15107/rcub_cer_1415
ER  - 

@article{
author = "Pavlović, Miroslav M. and Pavlović, Miomir and Ćosović, Vladan and Bojanić, Vaso and Nikolić, Nebojša D. and Aleksić, Radoslav",
year = "2014",
abstract = "Composites based on polymers with conductive fillers have been gaining more significant roles in a variety of technological domains and they are getting in the research focus of numerous studies as a part of growing research trend. Galvanostatically produced copper powder with high values of specific area was used as filler for synthesis of electroconductive composite materials prepared by the compression molding of mixtures of lignocellulose and electrochemically deposited copper powder. This article is concerned with characterization of these composites. Analysis of the most significant properties of prepared composites and its components included measurements of electrical conductivity, impedance spectroscopy (IS) behavior and structural and morphological analysis. Volume fraction of the copper powder was varied from 2.0-29.8% (v/v). The significant increase of the electrical conductivity can be observed as the copper powder content reaches the percolation threshold (PT). It was shown that PT depends on both particle shape and type of spatial distribution. IS measurements have shown that particle morphology having pronounced grain boundaries has great effect on appearance of electric conductive layers. The packaging effect and more pronounced interpartical contact with copper powder particles lead to "movement" of PT, which for the particles  LT 45 mu m and highest processing pressure of 27 MPa was 7.2% (v/v). IS response of the composites showed existence of electrical conductive layers, each having different resistivity which increases towards interior of the composite.",
publisher = "Electrochemical Science Group",
journal = "International Journal of Electrochemical Science",
title = "Influence of Electrolytic Copper Powder Particle Morphology on Electrical Conductivity of Lignocellulose Composites and Formation of Conductive Pathways",
volume = "9",
number = "12",
pages = "8355-8366",
url = "https://hdl.handle.net/21.15107/rcub_cer_1415"
}

Pavlović, M. M., Pavlović, M., Ćosović, V., Bojanić, V., Nikolić, N. D.,& Aleksić, R.. (2014). Influence of Electrolytic Copper Powder Particle Morphology on Electrical Conductivity of Lignocellulose Composites and Formation of Conductive Pathways. in International Journal of Electrochemical Science
Electrochemical Science Group., 9(12), 8355-8366.
https://hdl.handle.net/21.15107/rcub_cer_1415

Pavlović MM, Pavlović M, Ćosović V, Bojanić V, Nikolić ND, Aleksić R. Influence of Electrolytic Copper Powder Particle Morphology on Electrical Conductivity of Lignocellulose Composites and Formation of Conductive Pathways. in International Journal of Electrochemical Science. 2014;9(12):8355-8366.
https://hdl.handle.net/21.15107/rcub_cer_1415 .

Pavlović, Miroslav M., Pavlović, Miomir, Ćosović, Vladan, Bojanić, Vaso, Nikolić, Nebojša D., Aleksić, Radoslav, "Influence of Electrolytic Copper Powder Particle Morphology on Electrical Conductivity of Lignocellulose Composites and Formation of Conductive Pathways" in International Journal of Electrochemical Science, 9, no. 12 (2014):8355-8366,
https://hdl.handle.net/21.15107/rcub_cer_1415 .

TY  - JOUR
AU  - Pavlović, Miroslav M.
AU  - Ćosović, Vladan
AU  - Pavlović, Miomir
AU  - Bojanić, Vaso
AU  - Nikolić, Nebojša D.
AU  - Aleksić, Radoslav
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1027
AB  - This article is concerned with synthesis and characterization of electroconductive composite materials prepared by the compression molding of mixtures of lignocellulose and electrochemically deposited copper powder under different pressures, and investigation of the influence of particle size on conductivity and percolation threshold of obtained composites. Electrodeposited copper powder content was varied from 2.0-29.8 vol%. Analysis of the most significant properties of individual components and prepared composites included structural and morphological analysis and measurements of hardness and electrical conductivity. Hardness of the investigated composites, as expected, increased with the increase of the processing pressure, as well as lowering the particle size compared to previous work. The significant increase of the electrical conductivity can be observed as the copper powder content reaches the percolation threshold. The packaging effect and more pronounced interpartical contact with smaller, highly porous, highly dendritic particles with high values of specific area lead to "movement" of percolation threshold towards lower filler content, which for the particles  LT 45 mu m and highest processing pressure of 27 MPa was 7.2% (v/v). In the investigated range of electrodeposited copper powder concentrations and applied pressures the increase of the electrical conductivity of composites is as much as fourteen orders of magnitude. It was found that this transition occurs at lower volume fractions than stated in the literature which can be due to the filler with high specific area.
PB  - Esg, Belgrade
T2  - International Journal of Electrochemical Science
T1  - Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders. Part II. Influence of Particle Size on Percolation Threshold
VL  - 7
IS  - 9
SP  - 8883
EP  - 8893
UR  - https://hdl.handle.net/21.15107/rcub_cer_1027
ER  - 

@article{
author = "Pavlović, Miroslav M. and Ćosović, Vladan and Pavlović, Miomir and Bojanić, Vaso and Nikolić, Nebojša D. and Aleksić, Radoslav",
year = "2012",
abstract = "This article is concerned with synthesis and characterization of electroconductive composite materials prepared by the compression molding of mixtures of lignocellulose and electrochemically deposited copper powder under different pressures, and investigation of the influence of particle size on conductivity and percolation threshold of obtained composites. Electrodeposited copper powder content was varied from 2.0-29.8 vol%. Analysis of the most significant properties of individual components and prepared composites included structural and morphological analysis and measurements of hardness and electrical conductivity. Hardness of the investigated composites, as expected, increased with the increase of the processing pressure, as well as lowering the particle size compared to previous work. The significant increase of the electrical conductivity can be observed as the copper powder content reaches the percolation threshold. The packaging effect and more pronounced interpartical contact with smaller, highly porous, highly dendritic particles with high values of specific area lead to "movement" of percolation threshold towards lower filler content, which for the particles  LT 45 mu m and highest processing pressure of 27 MPa was 7.2% (v/v). In the investigated range of electrodeposited copper powder concentrations and applied pressures the increase of the electrical conductivity of composites is as much as fourteen orders of magnitude. It was found that this transition occurs at lower volume fractions than stated in the literature which can be due to the filler with high specific area.",
publisher = "Esg, Belgrade",
journal = "International Journal of Electrochemical Science",
title = "Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders. Part II. Influence of Particle Size on Percolation Threshold",
volume = "7",
number = "9",
pages = "8883-8893",
url = "https://hdl.handle.net/21.15107/rcub_cer_1027"
}

Pavlović, M. M., Ćosović, V., Pavlović, M., Bojanić, V., Nikolić, N. D.,& Aleksić, R.. (2012). Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders. Part II. Influence of Particle Size on Percolation Threshold. in International Journal of Electrochemical Science
Esg, Belgrade., 7(9), 8883-8893.
https://hdl.handle.net/21.15107/rcub_cer_1027

Pavlović MM, Ćosović V, Pavlović M, Bojanić V, Nikolić ND, Aleksić R. Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders. Part II. Influence of Particle Size on Percolation Threshold. in International Journal of Electrochemical Science. 2012;7(9):8883-8893.
https://hdl.handle.net/21.15107/rcub_cer_1027 .

Pavlović, Miroslav M., Ćosović, Vladan, Pavlović, Miomir, Bojanić, Vaso, Nikolić, Nebojša D., Aleksić, Radoslav, "Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders. Part II. Influence of Particle Size on Percolation Threshold" in International Journal of Electrochemical Science, 7, no. 9 (2012):8883-8893,
https://hdl.handle.net/21.15107/rcub_cer_1027 .

TY  - JOUR
AU  - Pavlović, Miroslav M.
AU  - Ćosović, Vladan
AU  - Talijan, Nadežda M.
AU  - Pavlović, Miomir
AU  - Bojanić, Vaso
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1090
AB  - Composite materials are gaining ever larger industrial applications in the world. None the less, composites based on polymers with conductive fillers are having more and more significant roles in a variety of technological domains and are in the research focus of numerous studies as a part of growing research trend. Natural polymers based on renewable materials with addition of electrochemically obtained conductive materials can be directly used as contemporary materials. This article is concerned with the experimental results of the investigation and characterization of the copper powder and lignocellulose (LC) composite materials. The content of copper powder was varied from 2-30 vol%, and the samples were prepared by the compression molding. Analysis and characterization of the most significant properties of individual components and prepared composites included morphological analysis, determination of density and porosity and measurements of electrical conductivity. Different investigation techniques including SEM, light microscopy and conductivity measurements were used.
AB  - Kompozitni materijali dobijaju sve veću industrijsku primenu u svetu. Kompoziti bazirani na polimerima sa provodnim puniocima su u novije vreme u širem istraživačkom fokusu pre svega zbog njihovog rastućeg značaja sa gledišta primene. Prirodni polimeri na bazi obnovljivih sirovina mogu se dodatkom elektrohemijski dobijenih provodnih punioca direktno koristiti kao savremeni kompozitni materijali. U ovom radu prikazan je deo eksperimentalnih rezultata istraživanja svojstava kompozitnih materijala na bazi lignocelulozne matrice (LC) i bakarnog praha dobijenog elektrohemijskim putem. Udeo bakarnog praha u ispitnim uzorcima variran je u opsegu od 2-30 vol%, a uzorci su pripremljeni kompaktiranjem-presovanjem. U eksperimentalnom delu za analizu i karakterizaciju polaznih konstituenata i istraživanih kompozita korišćene su različite eksperimentalne metode i tehnike: mikrostrukturna i morfološka analiza vršena je primenom skening elektronske mikroskopije (SEM) i optičke mikroskopije. Određena je veličina i distribucija čestica konstituenata kao i gustina, poroznost i električna provodljivost kompozita u zavisnosti od udela bakarnog praha.
PB  - Institut za bakar Bor
T2  - Bakar
T1  - Structure and properties of electroconductive composite materials based on lignocellulose and copper powder
T1  - Struktura i svojstva elektroprovodnih kompozitanih materijala na bazi lignoceluloze i bakarnog praha
VL  - 37
IS  - 1
SP  - 1
EP  - 10
UR  - https://hdl.handle.net/21.15107/rcub_cer_1090
ER  - 

@article{
author = "Pavlović, Miroslav M. and Ćosović, Vladan and Talijan, Nadežda M. and Pavlović, Miomir and Bojanić, Vaso",
year = "2012",
abstract = "Composite materials are gaining ever larger industrial applications in the world. None the less, composites based on polymers with conductive fillers are having more and more significant roles in a variety of technological domains and are in the research focus of numerous studies as a part of growing research trend. Natural polymers based on renewable materials with addition of electrochemically obtained conductive materials can be directly used as contemporary materials. This article is concerned with the experimental results of the investigation and characterization of the copper powder and lignocellulose (LC) composite materials. The content of copper powder was varied from 2-30 vol%, and the samples were prepared by the compression molding. Analysis and characterization of the most significant properties of individual components and prepared composites included morphological analysis, determination of density and porosity and measurements of electrical conductivity. Different investigation techniques including SEM, light microscopy and conductivity measurements were used., Kompozitni materijali dobijaju sve veću industrijsku primenu u svetu. Kompoziti bazirani na polimerima sa provodnim puniocima su u novije vreme u širem istraživačkom fokusu pre svega zbog njihovog rastućeg značaja sa gledišta primene. Prirodni polimeri na bazi obnovljivih sirovina mogu se dodatkom elektrohemijski dobijenih provodnih punioca direktno koristiti kao savremeni kompozitni materijali. U ovom radu prikazan je deo eksperimentalnih rezultata istraživanja svojstava kompozitnih materijala na bazi lignocelulozne matrice (LC) i bakarnog praha dobijenog elektrohemijskim putem. Udeo bakarnog praha u ispitnim uzorcima variran je u opsegu od 2-30 vol%, a uzorci su pripremljeni kompaktiranjem-presovanjem. U eksperimentalnom delu za analizu i karakterizaciju polaznih konstituenata i istraživanih kompozita korišćene su različite eksperimentalne metode i tehnike: mikrostrukturna i morfološka analiza vršena je primenom skening elektronske mikroskopije (SEM) i optičke mikroskopije. Određena je veličina i distribucija čestica konstituenata kao i gustina, poroznost i električna provodljivost kompozita u zavisnosti od udela bakarnog praha.",
publisher = "Institut za bakar Bor",
journal = "Bakar",
title = "Structure and properties of electroconductive composite materials based on lignocellulose and copper powder, Struktura i svojstva elektroprovodnih kompozitanih materijala na bazi lignoceluloze i bakarnog praha",
volume = "37",
number = "1",
pages = "1-10",
url = "https://hdl.handle.net/21.15107/rcub_cer_1090"
}

Pavlović, M. M., Ćosović, V., Talijan, N. M., Pavlović, M.,& Bojanić, V.. (2012). Structure and properties of electroconductive composite materials based on lignocellulose and copper powder. in Bakar
Institut za bakar Bor., 37(1), 1-10.
https://hdl.handle.net/21.15107/rcub_cer_1090

Pavlović MM, Ćosović V, Talijan NM, Pavlović M, Bojanić V. Structure and properties of electroconductive composite materials based on lignocellulose and copper powder. in Bakar. 2012;37(1):1-10.
https://hdl.handle.net/21.15107/rcub_cer_1090 .

Pavlović, Miroslav M., Ćosović, Vladan, Talijan, Nadežda M., Pavlović, Miomir, Bojanić, Vaso, "Structure and properties of electroconductive composite materials based on lignocellulose and copper powder" in Bakar, 37, no. 1 (2012):1-10,
https://hdl.handle.net/21.15107/rcub_cer_1090 .

TY  - CONF
AU  - Pavlović, Miroslav
AU  - Ćosović, Vladan
AU  - Bojanić, Vaso
AU  - Talijan, Nadežda
AU  - Pavlović, Miomir
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6674
AB  - Natural polymers based on renewable materials with addition of chosen materials can be directly used as contemporary materials by electrochemical methods. This article is concerned with the preparation and characterization of composite materials prepared by the compression molding of mixtures of copper and lignocelluloses (LC) powders. Characterization of the elaborated composites involved analysis and defining of parameters that have the major influence on the electrical conductivity (σ) of the investigated composites. Morphologies of the constituents, filler and matrix as well as prepared composites were investigated. The electrical conductivity of the composites was measured in the function of mass fraction of the copper powder in the composite material. It was determined that the composites show transition conducting region between 50 mass % and 70 mass % of copper, and act as a conductive material with σ ≥ 0.935 MS/m above 70 mass % of copper fraction. Furthermore, significant increase of the electrical conductivity by as much as six orders of magnitude can be observed within the investigated region.
AB  - Prirodni polimeri nа bаzi obnovljivih sirovinа mogu se elektrohemijskim metodаmа, uz dodаtаk izаbrаnih puniocа direktno koristiti kаo sаvremeni polimerni mаterijаli. U ovom radu su prikazani uslovi dobijanja kompozitnih materijala na bazi različitih smeša bakarnog praha i lignoceluloze (LC) metodom presovanja i njihova karakterizacija. Karakterizacija konstitutenata obuhvatila je analizu i definisanje parametara koji prvenstveno utiču na elektroprovodnost ispitivanih kompozita. Ispitivana je morfologija konstituenta, kao i ispitivanih kompozita. Određena je električna provodljivost (σ) kompozitnih materijala u funkciji masenog udela bakarnog praha. Utvrđeno je da se ispitivani kompoziti sa udelom bakarne frakcije između 50 i 70 mas.%, nalaze u prelaznom provodnom regionu, a kompoziti sa udelom bakarne frakcije iznad 70 mas.% se ponašaju kao provodnici sa σ ≥ 0.935 MS/m. U ispitivanom regionu, provodljivost je značajno povećana, čak i do šest redova veličine.
PB  - Zvornik, Republika Srpska, BiH : Tehnološki fakultet Zvornik
C3  - Proceedings - 2nd International Congress “Engineering, Ecology and Materials in the Processing Industry”, March 9-11, Jahorina, Bosnia & Herzegovina
T1  - Electroconductive composite materials based on lignocellulose and copper powders
T1  - Elektroprovodni kompozitni materijali na bazi lignoceluloze i bakarnog praha
SP  - 1270
EP  - 1275
UR  - https://hdl.handle.net/21.15107/rcub_cer_6674
ER  - 

@conference{
author = "Pavlović, Miroslav and Ćosović, Vladan and Bojanić, Vaso and Talijan, Nadežda and Pavlović, Miomir",
year = "2011",
abstract = "Natural polymers based on renewable materials with addition of chosen materials can be directly used as contemporary materials by electrochemical methods. This article is concerned with the preparation and characterization of composite materials prepared by the compression molding of mixtures of copper and lignocelluloses (LC) powders. Characterization of the elaborated composites involved analysis and defining of parameters that have the major influence on the electrical conductivity (σ) of the investigated composites. Morphologies of the constituents, filler and matrix as well as prepared composites were investigated. The electrical conductivity of the composites was measured in the function of mass fraction of the copper powder in the composite material. It was determined that the composites show transition conducting region between 50 mass % and 70 mass % of copper, and act as a conductive material with σ ≥ 0.935 MS/m above 70 mass % of copper fraction. Furthermore, significant increase of the electrical conductivity by as much as six orders of magnitude can be observed within the investigated region., Prirodni polimeri nа bаzi obnovljivih sirovinа mogu se elektrohemijskim metodаmа, uz dodаtаk izаbrаnih puniocа direktno koristiti kаo sаvremeni polimerni mаterijаli. U ovom radu su prikazani uslovi dobijanja kompozitnih materijala na bazi različitih smeša bakarnog praha i lignoceluloze (LC) metodom presovanja i njihova karakterizacija. Karakterizacija konstitutenata obuhvatila je analizu i definisanje parametara koji prvenstveno utiču na elektroprovodnost ispitivanih kompozita. Ispitivana je morfologija konstituenta, kao i ispitivanih kompozita. Određena je električna provodljivost (σ) kompozitnih materijala u funkciji masenog udela bakarnog praha. Utvrđeno je da se ispitivani kompoziti sa udelom bakarne frakcije između 50 i 70 mas.%, nalaze u prelaznom provodnom regionu, a kompoziti sa udelom bakarne frakcije iznad 70 mas.% se ponašaju kao provodnici sa σ ≥ 0.935 MS/m. U ispitivanom regionu, provodljivost je značajno povećana, čak i do šest redova veličine.",
publisher = "Zvornik, Republika Srpska, BiH : Tehnološki fakultet Zvornik",
journal = "Proceedings - 2nd International Congress “Engineering, Ecology and Materials in the Processing Industry”, March 9-11, Jahorina, Bosnia & Herzegovina",
title = "Electroconductive composite materials based on lignocellulose and copper powders, Elektroprovodni kompozitni materijali na bazi lignoceluloze i bakarnog praha",
pages = "1270-1275",
url = "https://hdl.handle.net/21.15107/rcub_cer_6674"
}

Pavlović, M., Ćosović, V., Bojanić, V., Talijan, N.,& Pavlović, M.. (2011). Electroconductive composite materials based on lignocellulose and copper powders. in Proceedings - 2nd International Congress “Engineering, Ecology and Materials in the Processing Industry”, March 9-11, Jahorina, Bosnia & Herzegovina
Zvornik, Republika Srpska, BiH : Tehnološki fakultet Zvornik., 1270-1275.
https://hdl.handle.net/21.15107/rcub_cer_6674

Pavlović M, Ćosović V, Bojanić V, Talijan N, Pavlović M. Electroconductive composite materials based on lignocellulose and copper powders. in Proceedings - 2nd International Congress “Engineering, Ecology and Materials in the Processing Industry”, March 9-11, Jahorina, Bosnia & Herzegovina. 2011;:1270-1275.
https://hdl.handle.net/21.15107/rcub_cer_6674 .

Pavlović, Miroslav, Ćosović, Vladan, Bojanić, Vaso, Talijan, Nadežda, Pavlović, Miomir, "Electroconductive composite materials based on lignocellulose and copper powders" in Proceedings - 2nd International Congress “Engineering, Ecology and Materials in the Processing Industry”, March 9-11, Jahorina, Bosnia & Herzegovina (2011):1270-1275,
https://hdl.handle.net/21.15107/rcub_cer_6674 .

TY  - CONF
AU  - Pavlović, Miomir
AU  - Talijan, Nadežda
AU  - Pavlović, Miroslav
AU  - Ćosović, Vladan
AU  - Bojanić, Vaso
AU  - Tomić, Milorad
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6689
AB  - In recent years, composites based on polymers with conductive fillers have been gaining more and more significant roles in a variety of technological domains and are in the research focus of numerous studies as a part of growing research trend. Natural polymers based on renewable materials with addition of chosen materials can be directly used as contemporary materials by electrochemical methods. This article is concerned with the characterization of the basic components: copper powder and lignocellulose (LC) as well as composite materials prepared by the compression molding of mixtures with 50-90mass% of copper powder. Analysis of the most significant properties of individual components and prepared composites included morphological analysis, determination of density and porosity and measurements of electrical conductivity. Different investigation techniques including SEM, TGA, light microscopy and conductivity measurements were used.
AB  - U novije vreme, kompozitni matirajali bazirani na polimerima sa provodnim puniocima nalaze sve značajniju primenu u brojnim tehnološko-tehničkim oblastima i predmet su istraživačkog fokusa čiji je trend u permanentnoj ekspanziji. Prirodni polimeri na bazi obnovljivih sirovina mogu se elektrohemijskim metodama, uz dodatak izabranih punioca, direktno koristiti kao savremeni polimerni materijali. Prezentovan rad obuhvata deo eksperimntalnih rezultata istraživanja svojstava kompozitnih materijala na bazi bakarnog praha dispergovanog u matrici od linoceluloze (LC), za udeo bakarnog praha u opsegu 50-90 mas.%, dobijenih metodom presovanja. Analiza i karakterizacija najznačajnijih karakteristika konstituenata i ispitivanih kompozita obuhvatila je mikrostrukturna ispitivanja, određivanje gustine i poroznosti kao i merenje elektriþne provodljivosti. U eksperimentalnom delu za analizu i karakterizaciju konstituenata i ispitivanih kompozita korisüene su razliþite eksperimentalne metode: SEM, TGA, optiþka mikroskopija, merenje električne provodljivosti.
PB  - Beograd, Srbija : Savez inženjera Srbije za zaštitu materijala (SITZAMS)
C3  - Proceedings - XIII YuCorr International Conference, Exchanging Experiences in the Fields of Corrosion, Materials and Environmental Protection, April 5-8, Tara, Serbia
T1  - Structural characteristics of composite lignocellulose and copper materials
T1  - Strukturne karakteristike kompozitnih materijala lignoceluloze i bakra
SP  - 265
EP  - 272
UR  - https://hdl.handle.net/21.15107/rcub_cer_6689
ER  - 

@conference{
author = "Pavlović, Miomir and Talijan, Nadežda and Pavlović, Miroslav and Ćosović, Vladan and Bojanić, Vaso and Tomić, Milorad",
year = "2011",
abstract = "In recent years, composites based on polymers with conductive fillers have been gaining more and more significant roles in a variety of technological domains and are in the research focus of numerous studies as a part of growing research trend. Natural polymers based on renewable materials with addition of chosen materials can be directly used as contemporary materials by electrochemical methods. This article is concerned with the characterization of the basic components: copper powder and lignocellulose (LC) as well as composite materials prepared by the compression molding of mixtures with 50-90mass% of copper powder. Analysis of the most significant properties of individual components and prepared composites included morphological analysis, determination of density and porosity and measurements of electrical conductivity. Different investigation techniques including SEM, TGA, light microscopy and conductivity measurements were used., U novije vreme, kompozitni matirajali bazirani na polimerima sa provodnim puniocima nalaze sve značajniju primenu u brojnim tehnološko-tehničkim oblastima i predmet su istraživačkog fokusa čiji je trend u permanentnoj ekspanziji. Prirodni polimeri na bazi obnovljivih sirovina mogu se elektrohemijskim metodama, uz dodatak izabranih punioca, direktno koristiti kao savremeni polimerni materijali. Prezentovan rad obuhvata deo eksperimntalnih rezultata istraživanja svojstava kompozitnih materijala na bazi bakarnog praha dispergovanog u matrici od linoceluloze (LC), za udeo bakarnog praha u opsegu 50-90 mas.%, dobijenih metodom presovanja. Analiza i karakterizacija najznačajnijih karakteristika konstituenata i ispitivanih kompozita obuhvatila je mikrostrukturna ispitivanja, određivanje gustine i poroznosti kao i merenje elektriþne provodljivosti. U eksperimentalnom delu za analizu i karakterizaciju konstituenata i ispitivanih kompozita korisüene su razliþite eksperimentalne metode: SEM, TGA, optiþka mikroskopija, merenje električne provodljivosti.",
publisher = "Beograd, Srbija : Savez inženjera Srbije za zaštitu materijala (SITZAMS)",
journal = "Proceedings - XIII YuCorr International Conference, Exchanging Experiences in the Fields of Corrosion, Materials and Environmental Protection, April 5-8, Tara, Serbia",
title = "Structural characteristics of composite lignocellulose and copper materials, Strukturne karakteristike kompozitnih materijala lignoceluloze i bakra",
pages = "265-272",
url = "https://hdl.handle.net/21.15107/rcub_cer_6689"
}

Pavlović, M., Talijan, N., Pavlović, M., Ćosović, V., Bojanić, V.,& Tomić, M.. (2011). Structural characteristics of composite lignocellulose and copper materials. in Proceedings - XIII YuCorr International Conference, Exchanging Experiences in the Fields of Corrosion, Materials and Environmental Protection, April 5-8, Tara, Serbia
Beograd, Srbija : Savez inženjera Srbije za zaštitu materijala (SITZAMS)., 265-272.
https://hdl.handle.net/21.15107/rcub_cer_6689

Pavlović M, Talijan N, Pavlović M, Ćosović V, Bojanić V, Tomić M. Structural characteristics of composite lignocellulose and copper materials. in Proceedings - XIII YuCorr International Conference, Exchanging Experiences in the Fields of Corrosion, Materials and Environmental Protection, April 5-8, Tara, Serbia. 2011;:265-272.
https://hdl.handle.net/21.15107/rcub_cer_6689 .

Pavlović, Miomir, Talijan, Nadežda, Pavlović, Miroslav, Ćosović, Vladan, Bojanić, Vaso, Tomić, Milorad, "Structural characteristics of composite lignocellulose and copper materials" in Proceedings - XIII YuCorr International Conference, Exchanging Experiences in the Fields of Corrosion, Materials and Environmental Protection, April 5-8, Tara, Serbia (2011):265-272,
https://hdl.handle.net/21.15107/rcub_cer_6689 .

TY  - JOUR
AU  - Pavlović, Miroslav M.
AU  - Ćosović, Vladan
AU  - Pavlović, Miomir
AU  - Talijan, Nadežda M.
AU  - Bojanić, Vaso
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/850
AB  - Composites based on polymers with conductive fillers have been gaining more and more significant roles in a variety of technological domains and are in the research focus of numerous studies as a part of growing research trend. Natural polymers based on renewable materials with addition of chosen materials can be directly used as contemporary materials by electrochemical methods. This article is concerned with the preparation characterization of the basic components: electrodeposited copper powder and lignocellulose as well as composite materials prepared by the compression molding of lignocellulose and galvanostatically obtained copper powder mixtures. Analysis of the most significant properties of individual components and prepared composites included quantitative structural analysis, morphological analysis, determination of density and porosity and measurements of electrical conductivity. Different investigation techniques including SEM, TGA, DSC, X-ray, FTIR, particle size distribution and conductivity measurements were used. The electrical conductivity of the composites is  LT  10(-15) MS/m, unless the metal content reaches the percolation threshold of 14.4% (v/v), beyond which the conductivity increases markedly by as much as 14 orders of magnitude. It was found that this transition occurs at lower volume fractions than stated in the literature which can be due to the filler with high specific area.
PB  - Esg, Belgrade
T2  - International Journal of Electrochemical Science
T1  - Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders
VL  - 6
IS  - 9
SP  - 3812
EP  - 3829
UR  - https://hdl.handle.net/21.15107/rcub_cer_850
ER  - 

@article{
author = "Pavlović, Miroslav M. and Ćosović, Vladan and Pavlović, Miomir and Talijan, Nadežda M. and Bojanić, Vaso",
year = "2011",
abstract = "Composites based on polymers with conductive fillers have been gaining more and more significant roles in a variety of technological domains and are in the research focus of numerous studies as a part of growing research trend. Natural polymers based on renewable materials with addition of chosen materials can be directly used as contemporary materials by electrochemical methods. This article is concerned with the preparation characterization of the basic components: electrodeposited copper powder and lignocellulose as well as composite materials prepared by the compression molding of lignocellulose and galvanostatically obtained copper powder mixtures. Analysis of the most significant properties of individual components and prepared composites included quantitative structural analysis, morphological analysis, determination of density and porosity and measurements of electrical conductivity. Different investigation techniques including SEM, TGA, DSC, X-ray, FTIR, particle size distribution and conductivity measurements were used. The electrical conductivity of the composites is  LT  10(-15) MS/m, unless the metal content reaches the percolation threshold of 14.4% (v/v), beyond which the conductivity increases markedly by as much as 14 orders of magnitude. It was found that this transition occurs at lower volume fractions than stated in the literature which can be due to the filler with high specific area.",
publisher = "Esg, Belgrade",
journal = "International Journal of Electrochemical Science",
title = "Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders",
volume = "6",
number = "9",
pages = "3812-3829",
url = "https://hdl.handle.net/21.15107/rcub_cer_850"
}

Pavlović, M. M., Ćosović, V., Pavlović, M., Talijan, N. M.,& Bojanić, V.. (2011). Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders. in International Journal of Electrochemical Science
Esg, Belgrade., 6(9), 3812-3829.
https://hdl.handle.net/21.15107/rcub_cer_850

Pavlović MM, Ćosović V, Pavlović M, Talijan NM, Bojanić V. Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders. in International Journal of Electrochemical Science. 2011;6(9):3812-3829.
https://hdl.handle.net/21.15107/rcub_cer_850 .

Pavlović, Miroslav M., Ćosović, Vladan, Pavlović, Miomir, Talijan, Nadežda M., Bojanić, Vaso, "Electrical Conductivity of Lignocellulose Composites Loaded with Electrodeposited Copper Powders" in International Journal of Electrochemical Science, 6, no. 9 (2011):3812-3829,
https://hdl.handle.net/21.15107/rcub_cer_850 .