锌镀层表面有机膦合钼聚多酸盐转化膜的研究  

The Conversion Film of Na_8[(HEDP)_2Mo_5O_(21)]·5H_2O on Zinc Deposit

作　　者：王济奎[1] 方景礼[1] 

机构地区：[1]南京化工大学应用化学系,南京大学应用化学研究所

出　　处：《应用化学》1996年第5期73-75,共3页Chinese Journal of Applied Chemistry

摘　　要：锌镀层表面有机膦合钼聚多酸盐转化膜的研究王济奎方景礼（南京化工大学应用化学系南京２１０００９）（南京大学应用化学研究所南京）关键词锌镀层，有机膦合钼聚多酸盐，转化膜钼酸盐和１－羟基乙－１，１二膦酸（ＨＥＤＰ，）均为被膜型缓蚀剂，可用于金属表面的钝化处...A golden yellow conversion film was obtained by immersing zinc deposit specimens into Na_8[(HEDP)_2Mo_5O_(21)]·5H_2O solution (HEDP, CH_3C-PO_3H). Several factors including concentration, PH, temperature of the treating solution and the treating time affecting the anticorrosion efficiency of the conversion film were investigated. The accelerated corrosion test proved that the film possesses a good corrosion resistance. The composition of the film and the valence states of elements in the film were determined by XPS and AES.The results showed that the relative atomic percent content of the film was Zn 17. 84%,O 50.28%,C 7.42%,Mo 18.00% and P 6.44%.Mo existed as Mo(Ⅵ),Mo(Ⅴ),Mo(Ⅲ) and Mo, while Zn existed as various species of Zn(Ⅱ) in the film.

关 键 词：锌镀层 转化膜 钼酸盐 钝化 耐蚀性 

分 类 号：TG178[金属学及工艺—金属表面处理]