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研究了镀膜工艺对复配十八烷胺缓蚀剂膜层抗腐蚀性能影响,并分析了膜层的腐蚀机理。结果表明,镀膜液pH=6的膜层腐蚀发生在微观缺陷上,pH=8～12的膜层腐蚀发生在晶界上;随着镀膜液pH值升高,膜层结构完整,抗腐蚀性能增强;在镀膜液pH=8～12时,随镀膜温度升高,膜层的组织致密,抗腐蚀性能增强。镀膜液pH=10、镀膜温度250℃为复配十八烷胺缓蚀剂最佳镀膜工艺。
The effect of coating process on the corrosion resistance of octadecylamine corrosion inhibitor film was studied, and the corrosion mechanism of the film was analyzed. The results showed that the corrosion of the coating with pH = 6 occurred on the microscopic defects. The corrosion of the coating with pH = 8 ~ 12 occurred on the grain boundary. With the increase of the pH of the coating solution, the structure of the coating was complete and the corrosion resistance Enhanced; when the coating solution pH = 8 ~ 12, with the coating temperature increases, the membrane structure is dense, corrosion resistance enhanced. Coating solution pH = 10, coating temperature of 250 ° C for the octadecylamine corrosion inhibitor best coating process.