Mild steel protection with epoxy top coated polypyrrole and polyaniline in 3.5% NaCl

被引：35

作者：

Tansug, G. ^{[1
]}

Tuken, T. ^{[1
]}

Ozyilmaz, A. T. ^{[1
]}

Erbil, M. ^{[1
]}

Yazici, B. ^{[1
]}

机构：

[1] Cukurova Univ, Dept Chem, Arts & Sci Fac, TR-01330 Adana, Turkey

来源：

CURRENT APPLIED PHYSICS | 2007年 / 7卷 / 04期

关键词：

corrosion; epoxy paint; polyaniline; polypyrrole;

D O I：

10.1016/j.cap.2006.09.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, the corrosion behaviours of mild steel (MS) samples coated with single epoxy polyamine (MS/E), epoxy polyamine top-coated polypyrrole (MS/PPy/E) and polyaniline (MS/PANI/E) were investigated in 3.5% NaCl solution of pH 8. For this purpose, electrochemical impedance spectroscopy (EIS) and polarisation resistance measurements were utilized when the centres of the electrode surfaces were scratched. It was found that the PPy film reduced the corrosion protection efficiency of the epoxy coating when it was used as the primary film under the epoxy layer. The primary PANI coating was shown to improve significantly the protection efficiency of the epoxy coating against mild steel corrosion. This was related to its healing effect on surface passivation against attack by a corrosive environment along a defect. (c) 2006 Published by Elsevier B.V.

引用

页码：440 / 445

页数：6

共 25 条

[1]

[Anonymous], 1976, MODERN ELECTROCHEMIS

[2] The healing effect of polymer films containing a non-chromate inhibitor on iron corrosion at scratched surfaces [J].

Aramaki, K .

CORROSION SCIENCE, 2000, 42 (11) :1975-1991

[3] Performance of coated steel systems exposed to different media -: Part I.: Painted galvanized steel [J].

del Amo, B ;

Véleva, L ;

Di Sarli, AR ;

Elsner, CI .

PROGRESS IN ORGANIC COATINGS, 2004, 50 (03) :179-192

[4] Comparison of polyaniline primers prepared with different dopants for corrosion protection of steel [J].

Dominis, AJ ;

Spinks, GM ;

Wallace, GG .

PROGRESS IN ORGANIC COATINGS, 2003, 48 (01) :43-49

[5] The electrochemical synthesis of polypyrrole at a copper electrode: corrosion protection properties [J].

Fenelon, AM ;

Breslin, CB .

ELECTROCHIMICA ACTA, 2002, 47 (28) :4467-4476

[6] 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

[7] Resistance to corrosion of galvanized steel covered with an epoxy-polyamide primer coating [J].

González, S ;

Gil, MA ;

Hernández, JO ;

Fox, V ;

Souto, RM .

PROGRESS IN ORGANIC COATINGS, 2001, 41 (1-3) :167-170

[8] The influence of polypyrrole films on the corrosion behavior of iron in acid sulfate solutions [J].

Grgur, BN ;

Krstajic, NV ;

Vojnovic, MV ;

Lacnjevac, C ;

Gajic-Krstajic, L .

PROGRESS IN ORGANIC COATINGS, 1998, 33 (01) :1-6

[9] Electron and proton conducting polymers: recent developments and prospects [J].

Inzelt, G ;

Pineri, M ;

Schultze, JW ;

Vorotyntsev, MA .

ELECTROCHIMICA ACTA, 2000, 45 (15-16) :2403-2421

[10] Corrosion protection of mild steel by electroactive polyaniline coatings [J].

Li, P ;

Tan, TC ;

Lee, JY .

SYNTHETIC METALS, 1997, 88 (03) :237-242

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