Corrosion protection of steel by polyaniline (PANI) pigmented paint coating

被引：153

作者：

Sathiyanarayanan, S ^{[1
]}

Muthukrishnan, S ^{[1
]}

Venkatachari, G ^{[1
]}

Trivedi, DC ^{[1
]}

机构：

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

来源：

PROGRESS IN ORGANIC COATINGS | 2005年 / 53卷 / 04期

关键词：

corrosion; steel; polyaniline; coatings; impedance; pin holes;

D O I：

10.1016/j.porgcoat.2005.03.007

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The corrosion performance of polyaniline (PANI) pigmented coating on steel has been studied by electrochemical impedance spectroscopy (EIS) in 3% NaCl and 0.1N HCl solutions. Initially, the impedance values were found to decrease due to the corrosion of steel in pin holes of the coating. However, on increased exposure time, the impedance values were found to increase due to the formation of passive film on the exposed steel in pin holes. These studies have shown that the polyaniline pigmented coatings are able to protect the steel both in acid and neutral media. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：297 / 301

页数：5

共 25 条

[1]

042 IN, Patent No. 042

[2] Undoped polyaniline anticorrosive properties [J].

Araujo, WS ;

Margarit, ICP ;

Ferreira, M ;

Mattos, OR ;

Neto, PL .

ELECTROCHIMICA ACTA, 2001, 46 (09) :1307-1312

[3] 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

[4]

FESSER R, 2000, EUR COAT C 16 JUN

[5] FORMATION OF AN ACTIVE ELECTRONIC BARRIER AT AL SEMICONDUCTOR INTERFACES - A NOVEL-APPROACH IN CORROSION PREVENTION [J].

JAIN, FC ;

ROSATO, JJ ;

KALONIA, KS ;

AGARWALA, VS .

CORROSION, 1986, 42 (12) :700-707

[6] A mechanistic investigation of polyaniline corrosion protection using the scanning reference electrode technique [J].

Kinlen, PJ ;

Menon, V ;

Ding, YW .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1999, 146 (10) :3690-3695

[7] CORROSION PROTECTION OF MILD-STEEL BY COATINGS CONTAINING POLYANILINE [J].

LU, WK ;

ELSENBAUMER, RL ;

WESSLING, B .

SYNTHETIC METALS, 1995, 71 (1-3) :2163-2166

[8] Electrochemical characterization of chromate coatings on galvanized steel [J].

Magalhaes, AAO ;

Margarit, ICP ;

Mattos, OR .

ELECTROCHIMICA ACTA, 1999, 44 (24) :4281-4287

[9]

MANSFELD F, 1993, 26 SCHL TECH UK

[10]

McAndrew T. P., 1995, US, Patent No. [S5441772, 5441772]

← 1 2 3 →