Wetting and scanning force microscopy on rough polymer surfaces: Wenzel's roughness factor and the thermodynamic contact angle

被引：74
|
作者：
Kamusewitz, H
Possart, W
机构：
[1] GKSS Forschungszentrum Geesthacht GmbH, Inst Chem, Dept Teltow, D-14513 Teltow, Germany
[2] Univ Saarland, D-66041 Saarbrucken, Germany
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2003年 / 76卷 / 06期
关键词：
D O I：
10.1007/s00339-002-1972-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of the surface roughness of polypropylene on the contact angle hysteresis is investigated by means of ethylene glycol drops in order to estimate the true Young's equilibrium contact angle. A new relationship between the contact angle hysteresis and Wenzel's contact angle is derived. In addition, the determination of Wenzel's roughness factor by means of scanning force microscopy opens an alternative way to obtaining Young's equilibrium contact angle without any surface manipulation. The experimental results presented verify this new approach.
引用
收藏
页码：899 / 902
页数：4
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