用XPS和AES研究镀锡层表面月桂胺防变色膜  

XPS AND AES STRUDIES OF ANTITARNISHING FILM FORMED BY LAURYLAMINE ON TINPLATE

作　　者：韩克平[1] 方景礼[1] 

机构地区：[1]南京大学应用化学研究所

出　　处：《中国腐蚀与防护学报》1996年第4期281-286,共6页Journal of Chinese Society For Corrosion and Protection

摘　　要：对比了多种防锡变色剂的效果，发现月桂胺是一种优良的防锡变色剂。月桂胺处理镀锡层的最佳条件为：月桂胺２．５ｇ／Ｌ；ｐＨ＝８；７０℃；１０ｍｉｎ。ＸＰＳ和ＡＥＳ分析结果表明，月桂胺中的氮与锡表面发生配位作用并在锡表面形成耐蚀性保护膜。从膜的ＡＥＳ元素深度分布曲线的恒定区求得配合物膜的组成（Ａ．Ｃ．％）为：Ｏ３９．０％；Ｓｎ４８．７％；Ｎ７．９％；Ｃ４．４％。By comparison of the antitarnishing effects of various agents, the laurylamine was found to be an excellent antitaranishing agent for tinplate. The optimum conditions of treatment were laurylamine 2.5g/L; pH=8.70℃; 10min. The results of XPS and AES analyses showed that on tinplate surface an anticorrosive coordination compound film of laurylamine was formed, and N atoms in laurylamine molecule were coordinated with Sn (II). The relative atomic percent contents (A.C.%) of the film calculated at the constat elemental composition section of the AES profile curves were O 39.0%; Sn 48.7%; N 7.9%; C 4.4%.

关 键 词：防变色膜 镀锡层 月桂胺 XPS AES 防锡变色剂 

分 类 号：TQ153.13[化学工程—电化学工业]