Electrochemical behavior of different shelled microcapsule composite copper coatings  

作　　者：Xiu-qing Xu Yan-hong Guo Wei-ping Li Li-qun Zhu 

机构地区：[1]School of Materials Science and Engineering, Beihang University, Beijing 100191, China

出　　处：《International Journal of Minerals,Metallurgy and Materials》2011年第3期377-384,共8页矿物冶金与材料学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No. 50771010)

摘　　要：Copper/liquid microcapsule composite coatings with polyvinyl alcohol （PVA）, gelatin or methyl cellulose （MC） as shell materials were prepared by electrodeposition. The influence of shell materials on the corrosion resistance of the composite coatings in 0.1 M H2SO4 was investigated by means of electrochemical techniques, scanning electron microscopy （SEM）, and energy dispersion spectrometry （EDS）. The results show that the participation of microcapsules can enhance the corrosion resistance of the composite coatings compared with the traditional copper layer. Based on the analysis of electrochemical test results, the release ways of microcapsules were deduced. Gelatin and MC as the shell materials of microcapsules are easy to release quickly in the composite coating. On the contrary, the releasing speed of PVA microcapsules is relatively slow due to their characteristics.Copper/liquid microcapsule composite coatings with polyvinyl alcohol （PVA）, gelatin or methyl cellulose （MC） as shell materials were prepared by electrodeposition. The influence of shell materials on the corrosion resistance of the composite coatings in 0.1 M H2SO4 was investigated by means of electrochemical techniques, scanning electron microscopy （SEM）, and energy dispersion spectrometry （EDS）. The results show that the participation of microcapsules can enhance the corrosion resistance of the composite coatings compared with the traditional copper layer. Based on the analysis of electrochemical test results, the release ways of microcapsules were deduced. Gelatin and MC as the shell materials of microcapsules are easy to release quickly in the composite coating. On the contrary, the releasing speed of PVA microcapsules is relatively slow due to their characteristics.

关 键 词：composite coatings shell materials copper MICROCAPSULES electrochemical properties corrosion resistance ELECTRODEPOSITION 

分 类 号：TQ153.2[化学工程—电化学工业] TQ633