A method of determining the thickness of liquid-liquid interfaces
A method of determining the thickness of liquid-liquid interfaces
复制标题
一种测定液-液界面厚度的方法
DOI：
10.1016/0927-7757(96)03544-3
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
Dongqing Li
中科院分区：
文献类型：
--
作者：
Chun Yang;Dongqing Li
提出了一种评价非混相液-液界面厚度的方法。该方法将界面张力的压力依赖性与扩展的Cahn-Hilliard理论相结合。发现界面的厚度与可测的界面张力压力系数、体相和界面的分摩尔密度有关。给出了五种非混相液-液界面厚度的数值计算结果。结果与现有的实验数据在同一数量级上。
A method of evaluating the thickness of an immiscible liquid-liquid interface is developed. The method is based on the combination of the pressure dependence of the interfacial tension with the extended Cahn-Hilliard theory. It is found that the thickness of an inteface is related to the measurable pressure coefficient of the interfacial tension and the partial mole densities of the bulk phases and the interface. Numerical results relating to the thicknesses of five immiscible liquid-liquid interfaces are given. The results are in the same order of magnitude as existing experimental data.