A stable superamphiphobic Zn coating with self-cleaning property on steel surface fabricated via a deposition method

• Published in: Journal of the Taiwan Institute of Chemical Engineers Vol. 63; pp. 411 - 420
• Main Authors: LI, Hao, YU, Sirong
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.06.2016
• Subjects: Durability; Micro-nano structures; Self-cleaning property; Superamphiphobic; Wettibality; Micro-nano structures; Durability; Wettibality; Superamphiphobic; Self-cleaning property
• ISSN: 1876-1070; 1876-1089
• DOI: 10.1016/j.jtice.2016.02.022

•A superamphiphobic Zn coating has been fabricated on X90 pipeline steel.•There are numerous grooves among numerous micro-nano structures on this coating.•This coating shows excellent self-cleaning property.•This coating presents high durability in atmospheric environment for 6 months. The wettability of metal surface has been the subject of the intensive research because of its potential applications in many fields. In this paper, a superamphiphobic Zn coating has been fabricated on X90 pipeline steel substrate via a facile composite method including electrodeposition and chemical modification. The contact angles of water and glycerol on such superamphiphobic Zn coating were up to 155.29° and 153.76°, respectively, and the sliding angles were separate about 3° and 5°, demonstrating excellent superamphiphobic property. Moreover, the wettability of the Zn coating in terms of water and glycerol contact angles was closely related to the micro-nano structures with grooves and the chemical composition with fluorinatedchain. Besides, the fine structure of the Zn coating was achieved by adjusting the experimentalparameters including the deposition time of electrodeposition and the time of chemical modification, and the effect of the parameters on the wettability of the coating was also investigated. Furthermore, the as-prepared superamphiphobic Zn coating showed excellent self-cleaning property and high durability inatmospheric environment for 6 months. The simple method for fabricating such stable superamphiphobic coating can be easily extended to other metals and alloys. [Display omitted]