Conducting polyaniline/multi-wall carbon nanotubes composite paints on low carbon steel for corrosion protection: electrochemical investigations

被引：36
|
作者：
Deshpande, Pravin P. [1 ]
Vathare, Sanket S. [1 ]
Vagge, Shashikant T. [1 ]
Tomsik, Elena [2 ]
Stejskal, Jaroslav [2 ]
机构：
[1] Coll Engn, Dept Met & Mat Sci, Pune 411005, Maharashtra, India
[2] Acad Sci Czech Republic, Inst Macromol Chem, CR-16206 Prague 6, Czech Republic
来源：
CHEMICAL PAPERS | 2013年 / 67卷 / 08期
关键词：
corrosion; polyaniline; conducting polymer; carbon nanotubes; ORGANIC COATINGS; ANTICORROSION PERFORMANCES; POLYMER; PHOSPHATE; FILMS; IRON; SALT;
D O I：
10.2478/s11696-012-0273-9
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The coaxial coating of multi-wall carbon nanotubes (MWCNT) with poly(aniline) (PANI) was synthesised and a paint was prepared containing conducting PANI-MWCNT composite. The corrosion protection performance was assessed by open circuit potential measurements, potentiodynamic polarisation, and electrochemical impedance spectroscopy. The corrosion rate of low-carbon steel coated with 1.5 mass % of PANI-MWCNT-based paint in 3.5 mass % sodium chloride solution was found to be 0.037 mm y(-1), about 5.2 times lower than that of unpainted low-carbon steel and 3.6 times lower than that of epoxy painted steel.
引用
收藏
页码：1072 / 1078
页数：7
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