Corrosion protection of iron by benzoate doped polyaniline containing coatings

被引：49

作者：

Kamaraj, K. ^{[1
]}

Sathiyanarayanan, S. ^{[1
]}

Muthukrishnan, S. ^{[1
]}

Venkatachari, G. ^{[1
]}

机构：

[1] Cent Electrochem Res Inst, Karaikkudi 630006, Tamil Nadu, India

来源：

PROGRESS IN ORGANIC COATINGS | 2009年 / 64卷 / 04期

关键词：

Polyaniline; EIS; Iron; Corrosion; Coatings; Benzoate; CONDUCTING POLYMERS; ACRYLIC BLENDS; MILD-STEEL; INHIBITION; PAINT;

D O I：

10.1016/j.porgcoat.2008.08.008

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Polyaniline containing organic coatings based on vinyl and acrylic resins are found to protect iron in acid and neutral media. Since dopants play an important role in forming salts with iron, a study has been made on the effect of benzoate doped polyaniline on the corrosion protection of iron by polyaniline-vinyl coatings in acid and neutral media. EIS studies have been made on the corrosion protection performance of vinyl coating on steel with 1% polyaniline in 0.1N HCl and 3% NaCl up to 100 days of exposure. It has been found that benzoate doped polyaniline containing coating has found to offer more protection in neutral media than that in acidic media due to passivating ability of benzoate ions in neutral solution, along with iron-polyaniline complex. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：460 / 465

页数：6

共 36 条

[1]

ATALAY A, 2001, MAT SCI ENG A-STRUCT, V796, P304

[2] Protection of iron against corrosion using a polyaniline layer I. Polyaniline electrodeposit [J].

Bernard, MC ;

Joiret, S ;

Hugot-Le Goff, A ;

Phong, PV .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (01) :B12-B16

[3]

BREGMAN JI, 1963, CORROSION INHIBITOR

[4] Corrosion protection of low carbon steel with polyaniline: passivation or inhibition? [J].

Cook, A ;

Gabriel, A ;

Siew, D ;

Laycock, N .

CURRENT APPLIED PHYSICS, 2004, 4 (2-4) :133-136

[5] Polyaniline acrylic coatings for corrosion inhibition: the role played by counter-ions [J].

da Silva, JEP ;

de Torresi, SIC ;

Torresi, RM .

CORROSION SCIENCE, 2005, 47 (03) :811-822

[6] Polyaniline based acrylic blends for iron corrosion protection [J].

de Souza, S ;

da Silva, JEP ;

de Torresi, SIC ;

Temperini, MLA ;

Torresi, RM .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2001, 4 (08) :B27-B30

[7] Doping of polyaniline by transition metal salts: effect of metal cation on the film morphology [J].

Dimitriev, OP .

SYNTHETIC METALS, 2004, 142 (1-3) :299-303

[8] 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

[9] 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

[10] Polyaniline inhibition of corrosion-driven organic coating cathodic delamination on iron [J].

Holness, RJ ;

Williams, G ;

Worsley, DA ;

McMurray, HN .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (02) :B73-B81

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