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用电化学方法在纯铁阳极上聚合了苯胺膜,并用多种电化学和表面分析技术检测了聚苯胺修饰铁(Fe/PA)的耐腐蚀性能.结果表明,聚苯胺膜对铁基金属有很好的保护作用。在强碱性到弱酸性的水溶液中,Fe/PA 的腐蚀电流密度比纯铁降低了三个数量级。其过钝化电位则明显正移.
The aniline film was electrochemically polymerized on the pure iron anode and the corrosion resistance of the polyaniline-modified iron (Fe / PA) was tested by a variety of electrochemical and surface analysis techniques. The results showed that the polyaniline film had an excellent effect on the Fe-based metal Very good protection. In strong alkali to weak acid aqueous solution, the corrosion current density of Fe / PA is reduced by three orders of magnitude compared with pure iron. Its passivation potential is significantly positive shift.