Fabrication of extreme wettability patterns with water-film protection for organic liquids. Issue 4 (3rd April 2017)

• Record Type: Journal Article
• Authors: Huang, Shuai; Zheng, Huanxi; Liu, Jiyu; Song, Jinlong; Chen, Faze; Yang, Xiaolong; Sun, Jing; Xu, Wenji; Liu, Xin
• Is Part Of: Journal of dispersion science and technology. Volume 38:Issue 4(2017)
• Page Start: 566
• Page End: 569
• Publication Date: 2017-04-03
• Subjects: Chemical etching -- extreme wettability patterns -- organic liquids -- water-film protection; Emulsions -- Periodicals; Suspensions (Chemistry) -- Periodicals; Emulsions; Suspensions; 541.34
• DOI: 10.1080/01932691.2016.1182028
• Languages: English
• ISSNs: 0193-2691

Abstract

ABSTRACT: Selective fabrication of superhydrophilic (S-philic) region on a superhydrophobic (S-phobic) surface requires complex technology and high cost, which has limited applications of extreme wettability patterns. In this paper, a twice-chemical-etching approach without special modification is used to prepare the extreme wettability patterns. Superhydrophobicity and superhydrophilicity can be successfully achieved after twice chemical etching for 20 seconds. The obtained patterns can maintain their extreme wettability for at least 30 days. Functional platforms with single-S-philic and multi-S-philic regions are fabricated to manipulate water and various organic liquids with water-film protection in an air environment. GRAPHICAL ABSTRACT: