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论文类型：期刊论文

发表时间：2017-04-03

发表刊物：JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY

收录刊物：SCIE、EI、Scopus

卷号：38

期号：4

页面范围：566-569

ISSN号：0193-2691

关键字：Chemical etching; extreme wettability patterns; organic liquids; water-film protection

摘要：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.