Super-water-repellent fractal surfaces

被引:1511
作者
Onda, T [1 ]
Shibuichi, S [1 ]
Satoh, N [1 ]
Tsujii, K [1 ]
机构
[1] KAO CORP,TOKYO RES LABS,SUMIDA KU,TOKYO 131,JAPAN
关键词
D O I
10.1021/la950418o
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Wettability of fractal surfaces has been studied both theoretically and experimentally. The contact angle of a liquid droplet placed on a fractal surface is expressed as a function of the fractal dimension, the range of fractal behavior, and the contacting ratio of the surface. The result shows that fractal surfaces can be super water repellent (superwettable) when the surfaces are composed of hydrophobic (hydrophilic) materials. We also demonstrate a super-water-repellent fractal surface made of alkylketene dimer; a water droplet on this surface has a contact angle as large as 174 degrees.
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收藏
页码:2125 / 2127
页数:3
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