Comparison study on anticorrosion performances of the epoxy coatings with two different nano-polyanilines for Q235 steel

被引：19
作者：
Hou, W. P. [1 ]
Liu, Y. [1 ]
Ge, Z. Y. [1 ]
Zhao, W. Y. [2 ]
机构：
[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
[2] Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China
来源：
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 2013年 / 64卷 / 11期
基金：
美国国家科学基金会;
关键词：
anticorrosion; coating; EIS; polyaniline; steel; CORROSION PROTECTION; NANOSTRUCTURED POLYANILINE; CONDUCTING POLYMERS; EMERALDINE BASE; CARBON-STEEL; MILD-STEEL; BEHAVIOR; INHIBITION; POLYMERIZATION; RESISTANCE;
D O I：
10.1002/maco.201206862
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Sulfuric acid doped nano-polyaniline was prepared by direct mixed oxidation in two different systems. A novel approach for preparing polyaniline (PANI) in FeCl2/H2O2 system was developed. The PANI possessed an excellent dispensability. Corrosion protection of epoxy coatings containing two kinds of polyaniline (PANI) on Q235 steel was studied by electrochemical impendance spectroscopy (EIS) technique and Tafel polarization test in 3.5wt% sodium chloride (NaCl) aqueous solution. The results indicated that the epoxy coating containing PANI obtained in FeCl2/H2O2 system had the best performance of the corrosion protection among three systems under investigation. The possible protective mechanism of PANI was discussed.
引用
收藏
页码：960 / 968
页数：9
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