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Corrosion stability of polyester coatings on steel pretreated with different iron-phosphate coatings

Authorized Users Only
2011
Authors
Jegdić, Bore
Bajat, Jelena
Popić, Jovan P.
Mišković-Stanković, Vesna
Article (Published version)
Metadata
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Abstract
The influence of steel surface pretreatment with different types of iron-phosphate coatings on the corrosion stability and adhesion characteristics of polyester coatings on steel was investigated. The phosphate coating was chemically deposited either from the simple novel plating bath, or with the addition of NaNO(2), as an accelerator in the plating bath. The morphology of phosphate coatings was investigated using atomic force microscopy (AFM). The corrosion stability of polyester coatings on steel pretreated by iron-phosphate coatings was investigated by electrochemical impedance spectroscopy (EIS) in 3% NaCl solution, while "dry" and "wet" adhesion were measured by a direct pull-off standardized procedure. It was shown that greater values of pore resistance. R(p), and smaller values of coating capacitance of polyester coating, C(c), on steel pretreated with iron-phosphate coating were obtained, as compared to polyester coating on steel phosphated with accelerator, and on the bare st...eel. The surface roughness of phosphate coating deposited on steel from the bath without accelerator is favorable in forming stronger bonds with polyester coating. Namely, the dry and wet adhesion measurements are in accordance with EIS measurements in 3% NaCl solution, i.e. lower adhesion values were obtained for polyester coating on steel phosphated with accelerator and on the bare steel, while the iron-phosphate pretreatment from the novel bath enhanced the adhesion of polyester coating on steel.

Keywords:
Corrosion / Electrochemical impedance spectroscopy / Adhesion / AFM / Polyester coating / Steel
Source:
Progress in Organic Coatings, 2011, 70, 2-3, 127-133
Publisher:
  • Elsevier Science Sa, Lausanne
Funding / projects:
  • Elektrohemijske karakteristike oksidnih i polimernih prevlaka na modifikovanim površinama metala (RS-142061)

DOI: 10.1016/j.porgcoat.2010.11.004

ISSN: 0300-9440

WoS: 000287901800008

Scopus: 2-s2.0-79551504293
[ Google Scholar ]
18
15
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/902
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Jegdić, Bore
AU  - Bajat, Jelena
AU  - Popić, Jovan P.
AU  - Mišković-Stanković, Vesna
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/902
AB  - The influence of steel surface pretreatment with different types of iron-phosphate coatings on the corrosion stability and adhesion characteristics of polyester coatings on steel was investigated. The phosphate coating was chemically deposited either from the simple novel plating bath, or with the addition of NaNO(2), as an accelerator in the plating bath. The morphology of phosphate coatings was investigated using atomic force microscopy (AFM). The corrosion stability of polyester coatings on steel pretreated by iron-phosphate coatings was investigated by electrochemical impedance spectroscopy (EIS) in 3% NaCl solution, while "dry" and "wet" adhesion were measured by a direct pull-off standardized procedure. It was shown that greater values of pore resistance. R(p), and smaller values of coating capacitance of polyester coating, C(c), on steel pretreated with iron-phosphate coating were obtained, as compared to polyester coating on steel phosphated with accelerator, and on the bare steel. The surface roughness of phosphate coating deposited on steel from the bath without accelerator is favorable in forming stronger bonds with polyester coating. Namely, the dry and wet adhesion measurements are in accordance with EIS measurements in 3% NaCl solution, i.e. lower adhesion values were obtained for polyester coating on steel phosphated with accelerator and on the bare steel, while the iron-phosphate pretreatment from the novel bath enhanced the adhesion of polyester coating on steel.
PB  - Elsevier Science Sa, Lausanne
T2  - Progress in Organic Coatings
T1  - Corrosion stability of polyester coatings on steel pretreated with different iron-phosphate coatings
VL  - 70
IS  - 2-3
SP  - 127
EP  - 133
DO  - 10.1016/j.porgcoat.2010.11.004
ER  - 
@article{
author = "Jegdić, Bore and Bajat, Jelena and Popić, Jovan P. and Mišković-Stanković, Vesna",
year = "2011",
abstract = "The influence of steel surface pretreatment with different types of iron-phosphate coatings on the corrosion stability and adhesion characteristics of polyester coatings on steel was investigated. The phosphate coating was chemically deposited either from the simple novel plating bath, or with the addition of NaNO(2), as an accelerator in the plating bath. The morphology of phosphate coatings was investigated using atomic force microscopy (AFM). The corrosion stability of polyester coatings on steel pretreated by iron-phosphate coatings was investigated by electrochemical impedance spectroscopy (EIS) in 3% NaCl solution, while "dry" and "wet" adhesion were measured by a direct pull-off standardized procedure. It was shown that greater values of pore resistance. R(p), and smaller values of coating capacitance of polyester coating, C(c), on steel pretreated with iron-phosphate coating were obtained, as compared to polyester coating on steel phosphated with accelerator, and on the bare steel. The surface roughness of phosphate coating deposited on steel from the bath without accelerator is favorable in forming stronger bonds with polyester coating. Namely, the dry and wet adhesion measurements are in accordance with EIS measurements in 3% NaCl solution, i.e. lower adhesion values were obtained for polyester coating on steel phosphated with accelerator and on the bare steel, while the iron-phosphate pretreatment from the novel bath enhanced the adhesion of polyester coating on steel.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Progress in Organic Coatings",
title = "Corrosion stability of polyester coatings on steel pretreated with different iron-phosphate coatings",
volume = "70",
number = "2-3",
pages = "127-133",
doi = "10.1016/j.porgcoat.2010.11.004"
}
Jegdić, B., Bajat, J., Popić, J. P.,& Mišković-Stanković, V.. (2011). Corrosion stability of polyester coatings on steel pretreated with different iron-phosphate coatings. in Progress in Organic Coatings
Elsevier Science Sa, Lausanne., 70(2-3), 127-133.
https://doi.org/10.1016/j.porgcoat.2010.11.004
Jegdić B, Bajat J, Popić JP, Mišković-Stanković V. Corrosion stability of polyester coatings on steel pretreated with different iron-phosphate coatings. in Progress in Organic Coatings. 2011;70(2-3):127-133.
doi:10.1016/j.porgcoat.2010.11.004 .
Jegdić, Bore, Bajat, Jelena, Popić, Jovan P., Mišković-Stanković, Vesna, "Corrosion stability of polyester coatings on steel pretreated with different iron-phosphate coatings" in Progress in Organic Coatings, 70, no. 2-3 (2011):127-133,
https://doi.org/10.1016/j.porgcoat.2010.11.004 . .

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