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

被引：151
|
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
收藏
页码：297 / 301
页数：5
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