Wetting films on chemically heterogeneous substrates

被引:85
|
作者
Bauer, C [1 ]
Dietrich, S [1 ]
机构
[1] Berg Univ Wuppertal, Fachbereich Phys, D-42097 Wuppertal, Germany
关键词
D O I
10.1103/PhysRevE.60.6919
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Based on a microscopic density functional theory, we investigate the morphology of thin liquidlike wetting films adsorbed on substrates endowed with well-defined chemical heterogeneities. As paradigmatic cases we focus on a single chemical step and on a single stripe. In view of applications in microfluidics, the accuracy of guiding liquids by chemical microchannels is discussed. Finally we give a general prescription of how to investigate theoretically the wetting properties of substrates with arbitrary chemical structures. [S1063-651X(99)07011-7].
引用
收藏
页码:6919 / 6941
页数:23
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