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Facile Preparation of Polyaniline Nanoparticles and Their Dispersion for Waterborne Anticorrosion Coatings

被引：1
|
作者：
Gu, Lin [1 ]
Zhao, Xia [1 ]
Tong, Xin [1 ]
Ma, Jun [1 ]
Chen, Bin [2 ]
Liu, Shuan [1 ]
Zhao, Haichao [1 ]
Yu, Haibin [1 ]
Chen, Jianmin [1 ]
机构：
[1] Chinese Acad Sci, Key Lab Marine Mat & Related Technol, Key Lab Marine Mat & Protect Technol Zhejiang Pro, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
[2] Shenyang Univ Chem Technol, Sch Mat Sci & Engn, 11 St Econ & Technol Dev Zone, Shenyang 110142, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2016年 / 11卷 / 02期
基金：
中国国家自然科学基金;
关键词：
polyaniline nanoparticles; waterborne coatings; corrosion; EIS; Tafel curves; CORROSION PROTECTION; GALVANIZED STEEL; BEHAVIOR; PREVENTION;
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Waterborne conductive polyaniline/polyvinylpyrrolidone (PANI/PVP) nanoparticles were prepared using as PVP stabilizer and phosphoric acid as dopant via dispersion polymerization. The resulting PANI/PVP nanoparticles were characterized by TEM, FTIR, UV-vis spectra, cyclic voltammetry and XPS, which showed regular spherical morphology with uniform diameters in the range of 60-80 nm and good electroactivity. The addition of PANI/PVP nanoparticles significantly improved the anticorrosion properties of waterborne epoxy coating, based on polarization curves and EIS measurements performed in 3.5% NaCl solution. Especially, the epoxy coating containing 1.0 wt% PANI/PVP exhibited best corrosion protective effect. The remarkably enhanced anticorrosion performance could be attributed to the redox catalytic properties of PANI/PVP nanoparticles and the inhibitory effect of doping anions.
引用
收藏
页码：1621 / 1631
页数：11
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