Study on the Preparation and Corrosion Resistance Properties of Superhydrophobic Coatings on Galvanized Steel

被引：7

作者：

Chen, Wenjuan ^{[1
]}

Shi, Haoran ^{[1
]}

Liu, Weiwen ^{[1
]}

Zhao, Anran ^{[1
]}

Pan, Gang ^{[2
]}

Huang, Anding ^{[3
]}

Yu, Yinglu ^{[1
]}

Ma, Luqi ^{[1
]}

机构：

[1] Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Peoples R China

[2] Hefei Univ Technol, Dept Basic Course, Xuancheng Campus, Hefei 230009, Peoples R China

[3] Univ Sci & Technol China, Sch Chem & Mat Sci, Hefei 230009, Peoples R China

来源：

METALS | 2023年 / 13卷 / 02期

关键词：

1H; 2H; 2H-perfluorodecyltriethoxysilane; graphene oxide; superhydrophobic coating; corrosion resistance; SURFACES;

D O I：

10.3390/met13020260

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The method of atmospheric corrosion protection of metals has always been a research hot spot at home and abroad. In this paper, superhydrophobic coating is prepared on the surface of galvanized steel by chemical etching using 1H,1H,2H,2H-perfluorodecyltriethoxysilane (PFDTES), graphene oxide (GO), anhydrous ethanol and water-based varnish as the main raw materials. The constitution of the superhydrophobic coating surface and the corrosion resistance of the steel are studied by electrochemical testing, X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy (EDS) and atomic force microscopy (AFM). Meanwhile, COMSOL software is used for the simulation of experiment. The results show that the surface of the superhydrophobic coating is composed of micro-nano sized papillary bulges, which play an important role in the improvement of metal corrosion resistance. The superhydrophobic coating effectively improves the alternating current impedance of the electrode and reduces the corrosion rate of the substrate. In addition, the results calculated by COMSOL software consist of the experimental results.

引用

页数：14

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