Corrosion studies on electrochemically deposited PANI and PANI/epoxy coatings on mild steel in acid sulfate solution

被引：65

作者：

Popovic, MM ^{[1
]}

Grgur, BN ^{[1
]}

Miskovic-Stankovic, VB ^{[1
]}

机构：

[1] Univ Belgrade, Fac Technol & Met, Dept Phys Chem & Electrochem, YU-11001 Belgrade, Serbia Monteneg, Serbia

来源：

PROGRESS IN ORGANIC COATINGS | 2005年 / 52卷 / 04期

关键词：

polyaniline; epoxy; electropolymerization; benzoate; mild steel; corrosion;

D O I：

10.1016/j.porgcoat.2004.05.009

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The corrosion behavior of mild steel and mild steel covered by electrochemically deposited (a) polyaniline (PANI) film, (b) epoxy coating and (c) PANI/epoxy coating system in 0.1 M sulfuric acid solution were investigated by electrochemical impedance spectroscopy (EIS). Electrochemical deposition of PANI film was performed from aqueous solution of 0.5 M sodium benzoate and 0.1 M aniline at constant current density of 1.5 mA cm(-2). Epoxy coatings on mild steel and mild steel modified by PANI film were deposited at constant voltage. It was shown that thin PANI film had provided good corrosion protection of mild steel in 0.1 M sulfuric acid solution, and could be used for modification of mild steel prior to epoxy coating deposition. The increased corrosion protection of mild steel by PANI/epoxy coating system in the same solution was obtained. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：359 / 365

页数：7

共 23 条

[1] The influence of steel surface modification by electrodeposited Zn-Fe alloys on the protective behaviour of an epoxy coating [J].