Fabrication of extreme wettability patterns with water-film protection for organic liquids

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Indexed by:期刊论文

Date of Publication:2017-04-03

Journal:JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY

Included Journals:SCIE、EI、Scopus

Volume:38

Issue:4

Page Number:566-569

ISSN No.:0193-2691

Key Words:Chemical etching; extreme wettability patterns; organic liquids; water-film protection

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.

Date of Publication:2017-04-03