锌镀层表面有机膦合钼聚多酸盐转化膜的研究

摘要/Abstract

摘要： 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理,两者混用时具有协同作用.

Abstract: A golden yellow conversion film was obtained by immersing zinc deposit specimens into Na₈[(HEDP)₂Mo₅O₂₁]·5H₂O solution (HEDP, ). 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.

Key words: zinc deposit, Na₈[(HEDP)₂Mo₅O₂₁]·5H₂O, conversion film

王济奎, 方景礼. 锌镀层表面有机膦合钼聚多酸盐转化膜的研究[J]. 应用化学, 1996, 0(5): 73-75.

Wang Jikui, Fang Jingli. The Conversion Film of Na₈[(HEDP)₂Mo₅O₂₁]·5H₂O on Zinc Deposit[J]. Chinese Journal of Applied Chemistry, 1996, 0(5): 73-75.

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