Conductive pathways in electroconductive biodegradable polymer matrix composites
2016
Аутори
Pavlović, MiroslavPantović Pavlović, Marijana
Zarić, Milana
Panić, Vladimir
Stevanović, Jasmina
Pavlović, Miomir
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The results of experimental studies of the properties of composite materials based on lignocellulosic (LC) and poly(methylmetacrylate) matrices filled with electrolytic copper powder are presented. Volume fractions of metal fillers in composite materials and tested samples were varied in the range of 0.5-29.8 % (v / v). Characterization included examination of the influence of particle size and morphology on the conductivity and percolation threshold of the composites using SEM and AFM. Presence of three dimensional conductive pathways was confirmed.
EDS measurements (Figure 1) show the existence of copper conductive pathways throughout the composites volumes. Due to the packaging effect and more pronounced interparticle contact with smaller, highly porous, highly dendritic particles with high values of specific area lead to "movement" of percolation threshold towards lower filler content. This feature can be observed on both on Figure 1 and Figure 2. Figure 2 presents AFM image of th...e PMMA and LC composite surfaces after breaking. These pathways are formed in 3D in a pure random order.
The results showed that the shape and morphology of the copper powder, and filler at all, play a significant role in the phenomenon of electrical conductivity of the prepared samples and the appearance percolation threshold. The particles with highly developed free surface and dendritic and highly branched structure, such as galvanostatically obtained copper powder particles can easier form interparticle contacts at lower filler volume fractions than particles with more regular surface.
When two different matrices are compared, slight advantage can be given to PMMA since the percolation threshold is at lower value. However, lignocellulose is biodegradable, green matrix, and it comes from abundant, sustainable resource, and it can be used for green composite production.
Кључне речи:
lignocellulosic (LC) matrix / poly(methylmetacrylate) matrixИзвор:
Book of abstracts - 24th Congress of Chemists and Technologists of Macedonia, September 11-14, Ohrid, Republic of Macedonia, 2016, 240-240Издавач:
- Skopje : Society of chemists and technologists of Macedonia
Финансирање / пројекти:
- Савремени вишекомпонентни метални системи и наноструктурни материјали са различитим функционалним својствима (RS-MESTD-Basic Research (BR or ON)-172037)
- Електрохемијска синтеза и карактеризација наноструктурираних функционалних материјала за примену у новим технологијама (RS-MESTD-Basic Research (BR or ON)-172046)
Институција/група
IHTMTY - CONF AU - Pavlović, Miroslav AU - Pantović Pavlović, Marijana AU - Zarić, Milana AU - Panić, Vladimir AU - Stevanović, Jasmina AU - Pavlović, Miomir PY - 2016 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/6633 AB - The results of experimental studies of the properties of composite materials based on lignocellulosic (LC) and poly(methylmetacrylate) matrices filled with electrolytic copper powder are presented. Volume fractions of metal fillers in composite materials and tested samples were varied in the range of 0.5-29.8 % (v / v). Characterization included examination of the influence of particle size and morphology on the conductivity and percolation threshold of the composites using SEM and AFM. Presence of three dimensional conductive pathways was confirmed. EDS measurements (Figure 1) show the existence of copper conductive pathways throughout the composites volumes. Due to the packaging effect and more pronounced interparticle contact with smaller, highly porous, highly dendritic particles with high values of specific area lead to "movement" of percolation threshold towards lower filler content. This feature can be observed on both on Figure 1 and Figure 2. Figure 2 presents AFM image of the PMMA and LC composite surfaces after breaking. These pathways are formed in 3D in a pure random order. The results showed that the shape and morphology of the copper powder, and filler at all, play a significant role in the phenomenon of electrical conductivity of the prepared samples and the appearance percolation threshold. The particles with highly developed free surface and dendritic and highly branched structure, such as galvanostatically obtained copper powder particles can easier form interparticle contacts at lower filler volume fractions than particles with more regular surface. When two different matrices are compared, slight advantage can be given to PMMA since the percolation threshold is at lower value. However, lignocellulose is biodegradable, green matrix, and it comes from abundant, sustainable resource, and it can be used for green composite production. PB - Skopje : Society of chemists and technologists of Macedonia C3 - Book of abstracts - 24th Congress of Chemists and Technologists of Macedonia, September 11-14, Ohrid, Republic of Macedonia T1 - Conductive pathways in electroconductive biodegradable polymer matrix composites SP - 240 EP - 240 UR - https://hdl.handle.net/21.15107/rcub_cer_6633 ER -
@conference{ author = "Pavlović, Miroslav and Pantović Pavlović, Marijana and Zarić, Milana and Panić, Vladimir and Stevanović, Jasmina and Pavlović, Miomir", year = "2016", abstract = "The results of experimental studies of the properties of composite materials based on lignocellulosic (LC) and poly(methylmetacrylate) matrices filled with electrolytic copper powder are presented. Volume fractions of metal fillers in composite materials and tested samples were varied in the range of 0.5-29.8 % (v / v). Characterization included examination of the influence of particle size and morphology on the conductivity and percolation threshold of the composites using SEM and AFM. Presence of three dimensional conductive pathways was confirmed. EDS measurements (Figure 1) show the existence of copper conductive pathways throughout the composites volumes. Due to the packaging effect and more pronounced interparticle contact with smaller, highly porous, highly dendritic particles with high values of specific area lead to "movement" of percolation threshold towards lower filler content. This feature can be observed on both on Figure 1 and Figure 2. Figure 2 presents AFM image of the PMMA and LC composite surfaces after breaking. These pathways are formed in 3D in a pure random order. The results showed that the shape and morphology of the copper powder, and filler at all, play a significant role in the phenomenon of electrical conductivity of the prepared samples and the appearance percolation threshold. The particles with highly developed free surface and dendritic and highly branched structure, such as galvanostatically obtained copper powder particles can easier form interparticle contacts at lower filler volume fractions than particles with more regular surface. When two different matrices are compared, slight advantage can be given to PMMA since the percolation threshold is at lower value. However, lignocellulose is biodegradable, green matrix, and it comes from abundant, sustainable resource, and it can be used for green composite production.", publisher = "Skopje : Society of chemists and technologists of Macedonia", journal = "Book of abstracts - 24th Congress of Chemists and Technologists of Macedonia, September 11-14, Ohrid, Republic of Macedonia", title = "Conductive pathways in electroconductive biodegradable polymer matrix composites", pages = "240-240", url = "https://hdl.handle.net/21.15107/rcub_cer_6633" }
Pavlović, M., Pantović Pavlović, M., Zarić, M., Panić, V., Stevanović, J.,& Pavlović, M.. (2016). Conductive pathways in electroconductive biodegradable polymer matrix composites. in Book of abstracts - 24th Congress of Chemists and Technologists of Macedonia, September 11-14, Ohrid, Republic of Macedonia Skopje : Society of chemists and technologists of Macedonia., 240-240. https://hdl.handle.net/21.15107/rcub_cer_6633
Pavlović M, Pantović Pavlović M, Zarić M, Panić V, Stevanović J, Pavlović M. Conductive pathways in electroconductive biodegradable polymer matrix composites. in Book of abstracts - 24th Congress of Chemists and Technologists of Macedonia, September 11-14, Ohrid, Republic of Macedonia. 2016;:240-240. https://hdl.handle.net/21.15107/rcub_cer_6633 .
Pavlović, Miroslav, Pantović Pavlović, Marijana, Zarić, Milana, Panić, Vladimir, Stevanović, Jasmina, Pavlović, Miomir, "Conductive pathways in electroconductive biodegradable polymer matrix composites" in Book of abstracts - 24th Congress of Chemists and Technologists of Macedonia, September 11-14, Ohrid, Republic of Macedonia (2016):240-240, https://hdl.handle.net/21.15107/rcub_cer_6633 .