Electrochemical impedance spectroscopy investigation of chlorinated rubber-based coatings containing polyaniline as anticorrosion agent

被引：24
|
作者：
Baldissera, A. F. [1 ]
Freitas, D. B. [1 ]
Ferreira, C. A. [1 ]
机构：
[1] Univ Fed Rio Grande do Sul, LAPOL PPGEM, BR-91501970 Porto Alegre, RS, Brazil
来源：
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 2010年 / 61卷 / 09期
关键词：
CORROSION PROTECTION; MILD-STEEL; CONDUCTING POLYMERS; POLYPYRROLE COATINGS; BEHAVIOR; PERFORMANCE; MEMBRANES; IRON; PREVENTION; ELECTRODES;
D O I：
10.1002/maco.200905254
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Corrosion protection of mild steel by a newly developed chlorinated rubber (CR)-based coating system containing the inherently conductive polymer polyaniline (PAni) as an anticorrosion agent was studied. The synthesis of PAni and preparation of CR-based paint containing this polymer are described herein. The corrosion behavior of mild steel samples coated with a CR resin, CR/PAni-EB (emeraldine base), CR/PAni-ES (emeraldine salt), and CR/DBSA-doped PAni were investigated in 3.5% NaCl solution. For this purpose, electrochemical impedance spectroscopy and corrosion potential versus time measurements were utilized. It was found that the addition of the two forms of PAni, doped and undoped, to the CR resin increased its corrosion protection efficiency.
引用
收藏
页码：790 / 801
页数：12
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