Author
Listed:
- YUFENG ZHANG
(College of New Energy, Bohai University, Jinzhou 121013, P. R. China)
- GUOLIANG CHEN
(#x2020;Institute for Advanced Ceramics, Harbin Institute of Technology, Harbin 150001, P. R. China‡Key Laboratory of Advanced Structure-Function, Integrated Materials and Green Manufacturing Technology, Harbin Institute of Technology, Harbin 150001, P. R. China)
- YAMING WANG
(#x2020;Institute for Advanced Ceramics, Harbin Institute of Technology, Harbin 150001, P. R. China‡Key Laboratory of Advanced Structure-Function, Integrated Materials and Green Manufacturing Technology, Harbin Institute of Technology, Harbin 150001, P. R. China)
- YONGCHUN ZOU
(#x2020;Institute for Advanced Ceramics, Harbin Institute of Technology, Harbin 150001, P. R. China‡Key Laboratory of Advanced Structure-Function, Integrated Materials and Green Manufacturing Technology, Harbin Institute of Technology, Harbin 150001, P. R. China)
Abstract
In the present study, a scalable-manufactured and environmental-friendly method was proposed to fabricate the superhydrophobic coating on titanium alloy. The hierarchical binary surface structures were obtained by hydrothermal treatment of titanium alloy with oxalic acid and sodium hydroxide solutions successively. The hierarchical structure surfaces after fluoroalkyl-silane modification possessed a maximum contact angle of 158.7∘ and a sliding angle of 4.3∘. The low contact angle hysteresis surface can lead to efficient self-cleaning performance, which was confirmed by the bounce and roll off of water droplet on the surface. Furthermore, the anticorrosion behaviors of the superhydrophobic coating in 3.5wt.% NaCl solution was evaluated by the electrochemical impedance spectroscopy (EIS). It was found that the superhydrophobic coating can maintain its superhydrophobic state (150∘) within 48 h, thereby effectively preventing the corrosive medium from penetrating into the coating. This simple yet fast anti-corrosion/self-cleaning superhydrophobic coating manufacturing strategy will enlighten its potential application in the engineering fields.
Suggested Citation
Yufeng Zhang & Guoliang Chen & Yaming Wang & Yongchun Zou, 2021.
"A Superhydrophobic Coating On Titanium Alloys By Simple Chemical Etching,"
Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 28(05), pages 1-10, May.
Handle:
RePEc:wsi:srlxxx:v:28:y:2021:i:05:n:s0218625x2150027x
DOI: 10.1142/S0218625X2150027X
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