Komura S, Hirose Y, Nonomura Y
Department of Chemistry, Faculty of Science, Tokyo Metropolitan University, Tokyo 192-0397, Japan.
J Chem Phys. 2006 Jun 28;124(24):241104. doi: 10.1063/1.2216697.
As a simple model for a Pickering emulsion droplet, we consider the adsorption of spherical particles to a spherical liquid-liquid interface in order to investigate the curvature effect on the particle adsorption. By taking into account both the surface and the volume energies due to the presence of a particle, we show that the equilibrium contact angle is determined by the classical Young's equation although the adsorption energy depends on the curvature. We also calculate the partitioning of the colloidal particles among the two liquids and the interface. The distribution of colloidal particles is expressed in terms of the interfacial curvature as well as the relative wettability of the particle.
作为皮克林乳液液滴的一个简单模型，我们考虑球形颗粒在球形液 - 液界面上的吸附，以研究曲率对颗粒吸附的影响。通过考虑由于颗粒存在而产生的表面能和体积能，我们表明平衡接触角由经典的杨氏方程确定，尽管吸附能取决于曲率。我们还计算了胶体颗粒在两种液体和界面之间的分配。胶体颗粒的分布用界面曲率以及颗粒的相对润湿性来表示。
