Martínez-López F, Cabrerizo-Vílchez MA, Hidalgo-Álvarez R
Biocolloid and Fluid Physics Group, Department of Applied Physics, University of Granda, Granada, 18071, Spain
J Colloid Interface Sci. 2000 Dec 15;232(2):303-310. doi: 10.1006/jcis.2000.7172.
In this paper, we propose a model to analyze the stability of colloidal particles at the air-liquid interface. The proposed model for the colloidal particle interaction considers DLVO interactions and capillary, hydrophobic, and dipolar interactions between the particles. Typical values from the literature were assigned to most parameters included in the model. Numerical computation revealed the most important parameter in determining the total interaction is the density of dipoles at the external surface of the particles. We have found significant differences for the pair potential between hydrophobic and hydrophilic particles. Hydrophobic particles must aggregate in a principal minimum of the interaction potential curve while hydrophilic particles aggregate in a secondary minimum. Copyright 2000 Academic Press.
在本文中，我们提出了一个模型来分析胶体颗粒在气液界面处的稳定性。所提出的胶体颗粒相互作用模型考虑了颗粒之间的DLVO相互作用以及毛细管、疏水和偶极相互作用。模型中包含的大多数参数都采用了文献中的典型值。数值计算表明，决定总相互作用的最重要参数是颗粒外表面偶极的密度。我们发现疏水颗粒和亲水颗粒之间的对势存在显著差异。疏水颗粒必须在相互作用势曲线的主最小值处聚集，而亲水颗粒则在次最小值处聚集。版权所有2000，学术出版社。
