Open AccessPreparation and properties of GO-SiO2 anticorrosive coatings
Author(s) -
Xian–Xu Bai,
Bin Wu,
Kun Jiang,
C J Liu,
H Zhang,
F Zhang,
Xiaohua Huang,
Menghan Cai,
P F Wang
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/668/1/012019
Subject(s) - materials science , epoxy , coating , corrosion , curing (chemistry) , composite material , electrochemistry , solvent , electrode , chemistry , organic chemistry
Epoxy resin is often used as raw material of anticorrosion, but in the curing process of resin, a large number of micropores are prepared in the solvent evaporation method, which reduces the performance of anticorrosion. In order to reduce internal defects and improve corrosion resistance, GO was compounded with SiO 2 modified by KH550 to prepare for GO-SiO 2 . By means of mechanical stirring and ultrasonic dispersion, GO-SiO 2 was added to epoxy resin to prepare for the anticorrosive coating. SEM was used to observe the coating morphology, and the physical and electrochemical properties of the coatings with different mass fractions of GO-SiO 2 are tested for corrosion resistance. The results show that 3 wt% GO-SiO 2 coating shows the best performance, the coating hardness reaches H, the adhesion grade is II.