(1. 昆明理工大学 材料与冶金工程学院，昆明 650093；
2. 曲靖师范学院 化学与生命科学系，曲靖 650011)
摘 要: 将阳离子型ZFS促进剂与SiO2微粒加入Zn-Fe合金镀液中，制备了Zn-Fe-SiO2复合镀层，研究了ZFS共沉积促进剂对镀层中SiO2微粒沉积量的影响，并分析了促进剂的作用机理。结果表明：ZFS共沉积促进剂可以明显提高SiO2微粒在镀层中的沉积量，并且无需对SiO2微粒进行镀前特殊处理。其原因是该促进剂吸附在SiO2微粒表面，使微粒表面呈正电性，在电场引力的作用下，SiO2微粒容易吸附在阴极表面并与还原金属实现复合共沉积。
关键字: 复合电沉积；ZFS促进剂；机理；吸附
composite electrodeposition
（1. Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology,
Kunming 650093, China;
2. Faculty of Chemistry and Life Sciences, Qujing Normal University, Qujing 650011, China）
Abstract:Cation-additive ZFS and SiO2 particles were added into Zn-Fe alloy electrolyte, and Zn-Fe-SiO2 composite coatings were obtained. Effect of additive ZFS on SiO2 content in the coating was studied, and the action mechanism of additive ZFS during composite electrodepositing was analyzed. The results show that additive ZFS can markedly improve the SiO2 content in the composite coating with no pre-treatment on SiO2 particles because SiO2 particles attached with additive ZFS show positive charge and the electric field gravitation between SiO2 particles and cathode makes SiO2 particles absorb onto the cathode and deposit with reductive metal easily.
Key words: composite electrodeposition; additive ZFS; mechanism; adsorption
