摘要
乳状液是一种复杂的液-液复杂分散体系,其分散程度与体相及界面层的流变性质密切相关。根据W/O乳状液液滴模型,分析了油水乳状液在电场作用下相关力学行为及其势能分布。分别应用Poisson-Boltzmann方程与Poisson-Smoluchowski方程揭示了阻止液滴絮凝的势垒关系,解析了乳状液的界面张力、分散相界面电势与电荷密度的关系、双电层势、分散相液滴之间的感应势等影响乳状液稳定性的因素,对于应用电方法进行破乳作业具有较重要的指导作用。
Emulsion is a complex liquid-liquid distributed system, the degree of dispersion closely related to phase bulk and interface layer theological properties. Taking W/O emulsion droplet as sample, the mechanical performance and potential energy of the oil-water emulsion in the electric field were analyzed. The potential barrier preventing droplet flocculation was revealed using Poisson-Boltzmann equation and the Poisson-Smoluchowski, respectively. The emulsion interracial tension,the relationship between interracial potential of the dispersed phase and the charge density,the double-layer potential, the induction potential between dispersed droplets were resolved. These are all significant factors to emulsion stability. It is an important significance for de-emulsification with application of electric field.
出处
《石油矿场机械》
2012年第2期12-16,共5页
Oil Field Equipment
基金
国家自然科学基金资助项目(51076007)
关键词
乳状液
电场
界面电势
感应势能
emulsion
electric field
interfacial potential
potential energy in induction
