Preparation and characterization of ZnO/PVB anticorrosive coating in marine environment

3rd International Conference on New Material and Chemical Industry

材料科学;化学工业

Zhu, G.Y.^1 ; Ma, Z.D.^1 ; Sun, M.^1 ; Zhang, Y.^1

School of Material Science and Engineering, Ocean University of China, Qingdao, Shandong

266100, China^1

关键词: Aluminum alloy matrices;    Anti-corrosive coatings;    Coating system;    Electrochemical test;    Fundamental properties;    Marine environment;    Protective effects;    Spinning coatings;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/479/1/012100/pdf
DOI  :  10.1088/1757-899X/479/1/012100

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

A new composite coating system for corrosion resistance of aluminum alloy was fabricated by spinning-coating method. ZnO was added to the PVB coating system as filler, and a small amount of coupling agent was also added to increase the cross-linking of the coating. The fundamental properties of the coating were characterized by SEM and Adhesion test. Moreover, the corrosion resistance of the coating in 3.5 wt. % NaCl solution was estimated by EIS and potentiodynamic polarization. The results showed that the coating was evenly distributed on the surface of the sample and has good adhesion to the substrate. Electrochemical test results show that the coating has a good protective effect on the aluminum alloy matrix.