摘要
本工作用恒电位方波法,分别测量了在浓度为120g/L NaOH溶液中,含有不同浓度锌酸盐镀锌用的有机表面活性剂:DE、DPE—Ⅲ、KR—7和ZB—80以及DE+DPE—Ⅲ、DPE—Ⅲ+KR—7、DPE—Ⅲ+ZB—80在悬汞电极上的微分电容——电位曲线,从而比较了上列各种有机表面活性剂在悬汞电极上的吸附电位范围,表面活性大小和吸附机理。
In this research, by potentiostatic square wave methods, We have respectively measured some organic surfactants in Zincate Znic-plating solution of different concentrations, ie DE, DPE—Ⅲ, KR—7, ZB—80, DE+DPE—Ⅲ, DPE—Ⅲ+KR—7 and DPE—Ⅲ+ZB—80, and Obtained the differential capacity—potential curves of these organic surfactants in 120g/L NaOH solutions on hanging mercury electrode. From these curves, we have compared with the ranges of adsorption potential, the strong or weak of adsorpition activity and the adsorption mechanisms.
关键词
锌酸盐镀锌
表面活性剂
吸附
Zincate Zinc-plating, Organic Surfactants, Adsorption.
