Dependence of macroscopic wetting on nanoscopic surface textures.
Ontology highlight
ABSTRACT:
SUBMITTER: Wong TS
PROVIDER: S-EPMC2783847 | biostudies-literature | 2009 Nov
REPOSITORIES: biostudies-literature
Publications
Dependence of macroscopic wetting on nanoscopic surface textures.
Wong Tak-Sing TS Ho Chih-Ming CM
Langmuir : the ACS journal of surfaces and colloids 20091101 22
The hydrophobicity of a surface can be enhanced by physical textures. However, no existing theories of surface wetting can provide guidance to pinpoint the texture size requirement to achieve super/ultrahydrophobicity. Here, we show that the three-phase contact line tension, tau, is an important link to understand the dependence of macroscopic wetting on physical texture size in an ideal Cassie regime. Specifically, we show that texture size is the dominant parameter in determining surface hydro ...[more]
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