Corrosion protection of magnesium ZM 21 alloy with polyaniline-TiO2 composite containing coatings

被引：83
|
作者：
Sathiyanarayanan, S. [1 ]
Azim, S. Syed [1 ]
Venkatachari, G. [1 ]
机构：
[1] Cent Electrochem Res Inst, Karaikkudi 630006, Tamil Nadu, India
来源：
PROGRESS IN ORGANIC COATINGS | 2007年 / 59卷 / 04期
关键词：
polyaniline; polyaniline-TiO2; composite; magnesium alloy; corrosion; EIS;
D O I：
10.1016/j.porgcoat.2007.04.004
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A polyaniline-TiO2 composite (PTC) was prepared by oxidative polymerization of aniline in phosphoric acid with ammonium persulphate, in the presence of TiO2. The composite was characterized by spectroscopic methods. An acrylic paint containing the PTC was prepared and the coating formed on magnesium alloy was evaluated by electrochemical impedance spectroscopy after exposure to salt spray test for a period of 250 h. The coating containing the PTC was found to protect the magnesium alloy more efficiently than the coating containing polyaniline. (c) 2007 Elsevier B.V All rights reserved.
引用
收藏
页码：291 / 296
页数：6
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