An effective approach to fabricate the corrosion resistance of superhydrophobic ZnO/Ni composite coating on carbon steel substrate. Issue 21 (2nd November 2022)

• Record Type: Journal Article
• Authors: Wang, Shan; Huang, Huilan; Li, Xue; Yin, Huawei; Tang, Jianting; Hu, Chuanbo; Ma, Beiyue; Li, Tingzhen
• Is Part Of: Journal of adhesion science and technology. Volume 36:Issue 21(2022)
• Page Start: 2328
• Page End: 2345
• Publication Date: 2022-11-02
• Subjects: Electrodeposition -- wettability -- micro/nanostructure -- superhydrophobicity -- anticorrosion; Adhesion -- Periodicals; Adhesives -- Periodicals; 668.3
• DOI: 10.1080/01694243.2021.2010882
• Languages: English
• ISSNs: 0169-4243

Abstract

Abstract: In this study, the carbon steel substrates were coated with nickel (Ni), zinc oxide (ZnO) and ZnO/Ni coatings by electrodeposition approach and modified with stearic acid (STA)-ethanol solution to obtain STA-Ni, STA-ZnO and STA-ZnO/Ni coatings, respectively. The surface morphologies, chemical compositions and surface roughnesses of the modified coatings were characterized by scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS) and confocal laser scanning microscope (CLSM), respectively. The wettability tests shows that the water contact angle (WCA) of the modified coatings with micro/nanostructure are all greater than 150° and the sliding angle (SA) are all less than 10°, especially the STA-ZnO/Ni coating with a WCA of 164.3° and a SA of 2.3°, displaying the prominent superhydrophobicity. Interestingly, the three modified coatings all exhibited excellent mechanical stabilities and self-cleaning properties after being scratched by a knife blade, peeled off by adhesive tape, abrased by sandpaper, and contaminated by chalk dust. Moreover, the corrosion resistance tests confirms that the STA-ZnO/Ni superhydrophobic coating possess higher durability and anticorrosion performance than that of STA-ZnO and STA-Ni coatings. The superhydrophobic STA-ZnO/Ni composite coating prepared by two-step electrodeposition combined with low surface energy material modification designed in this work shows great potential and prospect in industrial application.