Wetting.from macroscopic to microscopic scale
Wetting.from macroscopic to microscopic scale
复制标题
润湿.从宏观到微观
DOI：
10.1016/0001-8686(92)80020-x
复制
发表时间：
1992
影响因子：
15.6
通讯作者：
A. Cazabat
中科院分区：
文献类型：
--
作者：
A. Cazabat
润湿过程在许多领域中发挥着重要作用，包括油漆，印刷，表面涂层，但也在农业，石油回收等。“润湿”涵盖当液体与固体或不混溶液体接触时发生的所有现象。在这里，我们将限制自己的动态润湿的固体表面，即，当液体边缘移动的情况下，在固体基板。靠近固体的液体前缘的厚度分布取决于观测尺度和速度。在宏观尺度上，即厚度超过微米时，轮廓看起来是楔形的：液体以一定的角度接触固体，称为接触角，这是该尺度下的相关参数。
Wetting processes play major roles in many fields including painting, printing, surface coating but also in agriculture, oil recovery etc...“Wetting” covers all phenomena occurring when a liquid is put in contact with a solid, or an immiscible liquid. Here, we shall restrict ourselves to the dynamic wetting of solid surfaces, ie, the situation when a liquid edge moves on a solid substrate. The thickness profile of the liquid front close to the solid depends on the scale of observation and on the velocity. At the macroscopic scale, ie, for thicknesses above a micrometer, the profile looks wedge-shaped: The liquid meets the solid at a certain anglecalled the contact angle, which is the relevant parameter at this scale.