期刊
LANGMUIR
卷 27, 期 21, 页码 13015-13021出版社
AMER CHEMICAL SOC
DOI: 10.1021/la202836q
关键词
-
资金
- Ministere de la Region Wallonne
- Fonds National de la Recherche Scientifique (FNRS) of Belgium
We report an experimental study of the dynamics of spontaneous spreading of aqueous glycerol drops on glass. For a range of glycerol concentrations, we follow the evolution of the radius and contact angle over several decades of time and investigate the influence of solution viscosity. The application of the molecular kinetic theory to the resulting data allows us to extract the coefficient of contact-line friction xi, the molecular jump frequency kappa(0), and the jump length lambda for each solution. Our results show that the modified theory, which explicitly accounts for the effect of viscosity, can successfully be applied to droplet spreading. The viscosity affects the jump frequency but not the jump length. In combining these data, we confirm that the contact-line friction of the solution/air interface against the glass is proportional to the viscosity and exponentially dependent on the work of adhesion.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据