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研究结果表明,苯胺及其衍生物的电化学修饰膜对铁基金属有很好的保护作用,在氯化钠溶液以及弱酸性和强碱性溶液中有良好的阻蚀性能。18-8不锈钢经修饰后在3％NaCl溶液中的耐孔蚀性能大为提高,在硫酸溶液中的钝化特性明显改善。根据实验结果,探讨了修饰膜的缓蚀机理以及修饰物质的结构、取代基的位置对修饰膜耐蚀性的影响。
The results show that the electrochemical modification of aniline and its derivatives has a good protective effect on iron-based metal, and has good corrosion resistance in sodium chloride solution and weak acid and strong alkaline solution. The corrosion resistance of 18-8 stainless steel modified in 3% NaCl solution is greatly improved, and the passivation property in sulfuric acid solution is obviously improved. According to the experimental results, the corrosion inhibition mechanism of the modified films, the structure of the modified substances and the influence of the positions of the substituents on the corrosion resistance of the modified films were discussed.