摘要
含氮杂环有机分子是优良的缓蚀剂,具有很好的络合功能,能够与金属离子或在固体表面形成配位化合物,从而控制其化学性能,降低氧化能力。本工作使用KH560对2-氨基吡啶、2-氨基嘧啶和三聚氰胺三种小分子改性,得到的样品用于锈层的处理。通过傅里叶红外吸收光谱(FTIR)确定了样品的成功制备,同时通过扫描电镜、硫酸铜点滴实验、极化曲线测试、阻抗测试对处理前后的锈层表面进行测试观察,结果表明:经过A1KH560、A2KH560和A3KH560处理过的锈层表面的环氧涂层的防腐能力大幅提高,同时在附着力、柔韧性、耐冲击强度方面均有明显提升,其中经过A1KH560处理的涂层防腐能力最好。
Nitrogenous heterocyclic organic molecule is an important corrosion inhibitor with good complexation performance, which can form coordination compounds with metal ions or on the surface of solid, so as to control its chemical properties and reduce oxidation capacity. In this paper, KH560 was used to modify 2-aminopyridine, 2-aminopyrimidine and melamine. The product was used to treat rust layer. The success of the synthesis experiment was confirmed by Fourier infrared absorption spectroscopy(FTIR). The surface of rust layer before and after treatment was observed by scanning electron microscopy, copper sulfate drop test, polarization curve test and impedance test. The results show that the corrosion resistance of epoxy coatings treated with A1KH560, A2KH560 and A3KH560 is greatly improved, and the adhesion, flexibility and impact strength of the coatings are obviously improved. The coating treated with A1KH560 has the best corrosion resistance.
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