Semprebon Ciro, Sadullah Muhammad Subkhi, McHale Glen, Kusumaatmaja Halim
Smart Materials and Surfaces Laboratory, Northumbria University, Newcastle upon Tyne NE1 8ST, UK.
King Abdullah University of Science and Technology (KAUST), Water Desalination and Reuse Center (WDRC), Biological and Environmental Science and Engineering (BESE) Division, Thuwal 23955-6900, Saudi Arabia.
Soft Matter. 2021 Nov 3;17(42):9553-9559. doi: 10.1039/d1sm00704a.
We theoretically investigate the apparent contact angle of drops on liquid infused surfaces as a function of the relative size of the wetting ridge and the deposited drop. We provide an intuitive geometrical interpretation whereby the variation in the apparent contact angle is due to the rotation of the Neumann triangle at the lubricant-drop-gas contact line. We also derive linear and quadratic corrections to the apparent contact angle as power series expansion in terms of pressure differences between the lubricant, drop and gas phases. These expressions are much simpler and more compact compared to those previously derived by Semprebon [, 2017, , 101-110].
我们从理论上研究了液滴在液体注入表面上的表观接触角与润湿脊和沉积液滴相对尺寸的函数关系。我们提供了一种直观的几何解释，即表观接触角的变化是由于润滑剂 - 液滴 - 气体接触线上的诺伊曼三角形的旋转所致。我们还根据润滑剂、液滴和气相之间的压力差，以幂级数展开形式推导了表观接触角的线性和二次修正。与Semprebon在2017年发表于[具体文献，页码101 - 110]中先前推导的表达式相比，这些表达式要简单得多且更紧凑。
