Preparation and properties of superhydrophobic Co-MoS2 composite coating

doi:10.13251/j.issn.0254-6051.2022.11.043

Abstract

Abstract: A superhydrophobic Co-MoS₂ composite coating with excellent wear and corrosion resistance was prepared by one-step electrodeposition method. The influence law and mechanism of current density and electrodeposition time on microstructure, wettability, self-cleaning effect, wear and corrosion resistance of the composite coatings were systematically studied by means of scanning electron microscope, X-ray diffractometer, laser confocal microscope, contact angle tester and electrochemical workstation. The results show that the Co-MoS₂ composite coatings possess the superhydrophobic effect with the maximum contact angle value about 151.4°, good self-cleaning and anti-fouling performance under the current density of 20 A/dm² and electrodeposition time of 30 min. The coating surface still maintains good hydrophobicity with contact angle higher than 146° after the abrasion with 800 grit sandpaper for 1200 mm under pressure of 2.5 kPa, showing excellent wear resistance. Besides, the superhydrophobic composite coating also displays good corrosion resistance. The simple, cost-effective and environment friendly one-step electrodeposition method for fabrication superhydrophobic composite coating with high-performance is expected to realize the practical application of superhydrophobic materials.

Key words: one-step electrodeposition, Co-MoS₂ composite coatings, superhydrophobicity, self-cleaning, wear and corrosion resistance

CLC Number:

TG174.4

Liu Cansen, Zhen Haowen, Huang Qishan, Chen Wanlin, Jie Xiaohua. Preparation and properties of superhydrophobic Co-MoS₂ composite coating[J]. Heat Treatment of Metals, 2022, 47(11): 253-260.

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Preparation and properties of superhydrophobic Co-MoS₂ composite coating

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