Corrosion protection with polyaniline and polypyrrole as anticorrosive additives for epoxy paint

被引:224
作者
Armelin, Elaine [1 ]
Pla, Rosa [1 ]
Liesa, Francisco [2 ]
Ramis, Xavier [3 ]
Iribarren, Jose I. [1 ]
Aleman, Carlos [1 ]
机构
[1] Univ Politecn Cataluna, ETS Engn Ind Barcelona, Dept Engn Quim, E-08028 Barcelona, Spain
[2] Univ Politecn Cataluna, ETS Engn Ind Barcelona, Dept Engn Mecan, E-08028 Barcelona, Spain
[3] Univ Politecn Cataluna, ETS Engn Ind Barcelona, Dept Maquines & Motors Term, E-08028 Barcelona, Spain
关键词
polyaniline; polypyrrole; epoxy paint; corrosion test; corrosion mechanism;
D O I
10.1016/j.corsci.2007.10.006
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Accelerated immersion tests have been carried out in the laboratory to investigate the performance of polyaniline emeraldine salt and polypyrrole composite with carbon black as additives of an epoxy paint coating. The steel panels coated with paint modified with polyaniline emeraldine salt presented the best protection after 720 h of exposure in 3.5% NaCl solution. The results indicated that this conducting polymer might works as both corrosion inhibitor and adhesion promoter. The protective mechanism imparted by conducting polymers is also discussed. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:721 / 728
页数:8
相关论文
共 44 条
[1]  
AHMAD N, 1987, B AM PHYS SOC, V32, P548
[2]  
BIRKETT D, 2003, EDUC CHEM, P123
[3]   A comparison of the in vitro genotoxicity of tri- and hexavalent chromium [J].
Blasiak, J ;
Kowalik, J .
MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS, 2000, 469 (01) :135-145
[4]   MODIFICATION OF THE ELECTROCHEMICAL AND CORROSION BEHAVIOR OF STAINLESS-STEELS WITH AN ELECTROACTIVE COATING [J].
DEBERRY, DW .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1985, 132 (05) :1022-1026
[5]   Corrosion protection of iron/steel by emeraldine base polyaniline: An X-ray photoelectron spectroscopy study [J].
Fahlman, M ;
Jasty, S ;
Epstein, AJ .
SYNTHETIC METALS, 1997, 85 (1-3) :1323-1326
[6]   COATINGS AND CORROSION - EVEN THE BEST FAIL [J].
FERNANDES, EG .
INDUSTRIAL & ENGINEERING CHEMISTRY PRODUCT RESEARCH AND DEVELOPMENT, 1985, 24 (03) :353-357
[7]   Electrosynthesis of strongly adherent polypyrrole coatings on iron and mild steel in aqueous media [J].
Ferreira, CA ;
Aeiyach, S ;
Aaron, JJ ;
Lacaze, PC .
ELECTROCHIMICA ACTA, 1996, 41 (11-12) :1801-1809
[8]   Appraisal of the polypyrrole/cataphoretic paint bilayer system as a protective coating for metals [J].
Ferreira, CA ;
Aeiyach, S ;
Coulaud, A ;
Lacaze, PC .
JOURNAL OF APPLIED ELECTROCHEMISTRY, 1999, 29 (02) :259-263
[9]  
Hare C. H, 1998, J PROT COAT LININGS, V15, P17
[10]   Role of doping, ions in the corrosion protection of iron by polypyrrole films [J].
Hien, NTL ;
Garcia, B ;
Pailleret, A ;
Deslouis, C .
ELECTROCHIMICA ACTA, 2005, 50 (7-8) :1747-1755