湖南大学学报（自然科学版）Issue(7)：97-102,6.
溶剂对导电聚吡咯防腐蚀性能的影响
Effect of Solvents on Corrosion Protection of Conducting Polypyrrole
李国希 1曾静 1高桂红 1廖孟春 1孙涛 1李枫1
作者信息
- 1. 湖南大学 化学化工学院，湖南 长沙 410082
- 折叠
摘要
Abstract
The polypyrrole(PPy)films were synthesized in pyrrole and NaClO4 aqueous or acetonitrile solution on stainless steel by cyclic voltammetry.The morphology of PPy films was observed by scanning electron microscopy,the conductivity was measured by four-probe and its corrosion protection properties were investigated by potentiodynamic polarization curves and electrochemical impedance spectroscopy in 1 mol/L H2 SO4 .The morphology of two kinds of PPy films showed spherical type,but that prepared in wa-ter had more nodules.The conductivity of the PPy prepared in acetonitrile was higher than that in water, and aslo provided better protection properties for stainless steel.The donor number of acetonitrile was smaller than that of water,and acetonitrile had little reaction with polymer intermediates which was diffi-cult to end the chain reactions.As a result,PPy film prepared in acetonitrile possessed with long conj uga-cy-length,small structure defects,high conductivity and better corrosion-resistance.关键词
聚吡咯/不锈钢/防腐蚀/电导率Key words
polypyrrole/stainless steel/anticorrosion/conductivity分类
矿业与冶金引用本文复制引用
李国希,曾静,高桂红,廖孟春,孙涛,李枫..溶剂对导电聚吡咯防腐蚀性能的影响[J].湖南大学学报（自然科学版）,2014,(7):97-102,6.
