Simple relations for wettability of a droplet on a low-surface-energy solid

被引:0
|
作者
Yonemoto, Yukihiro [1 ]
Kunugi, Tomoaki [2 ]
机构
[1] Kumamoto Univ, Prior Org Innovat & Excellence, Chuo Ku, Kumamoto 8608555, Japan
[2] Kyoto Univ, Dept Nucl Engn, Nishikyo Ku, Kyoto 158540, Japan
来源
8TH INTERNATIONAL SYMPOSIUM ON MEASUREMENT TECHNIQUES FOR MULTIPHASE FLOWS | 2014年 / 1592卷
关键词
Wetting phenomena; Contact angle; Critical surface tension; Small droplet; MONOLAYERS; TENSION;
D O I
10.1063/1.4872123
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
A treatment of the contact angle is very difficult because it exhibits a hysteresis such as dynamic contact angle and does not necessarily take a constant value. For understanding such complicated behavior of droplet, simple but fundamental consideration is very important. In the present study, wettability of a binary mixture droplet on low surface energy solid is experimentally and theoretically investigated. A simple theoretical model is applied to the droplet behavior considering a situation before and after touching the solid surface from a view point of thermodynamic surface energy. The model can explain the relationships among the contact angle (theta), surface energy of liquid (sigma(1g)) and the droplet radius (R).
引用
收藏
页码:329 / 332
页数:4
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