Polyaniline/epoxy coatings with good anti-corrosion properties

被引:188
作者
Talo, A [1 ]
Passiniemi, P [1 ]
Forsen, O [1 ]
Ylasaari, S [1 ]
机构
[1] NESTE OY CHEM,CTR TECHNOL,FIN-06101 PORVOO,FINLAND
关键词
polyaniline; coatings; corrosion protection;
D O I
10.1016/S0379-6779(97)80258-5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We have studied polyaniline/epoxy blend coatings on mild steel in 0.6 M NaCl and 0.1 M HCl aqueous solutions with electrochemical methods. The corrosion protective performance was characterized by a permanent shift of corrosion potential by about 500 mV to the noble direction and by a decrease of five orders of magnitude in the redox current. The surface of mild steel was covered by a light gray protective layer due to the electrochemical interaction between the coating and steel. The chemical composition of the surface layer has been studied with X-ray photoelectron spectroscopy (XPS).
引用
收藏
页码:1333 / 1334
页数:2
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