Coalescence of single drops at a liquid-liquid interface in the presence of surfactants/polymers

被引：29

作者：

Aderangi, N ^{[1
]}

Wasan, DT ^{[1
]}

机构：

[1] IIT,DEPT CHEM ENGN,CHICAGO,IL 60616

来源：

CHEMICAL ENGINEERING COMMUNICATIONS | 1995年 / 132卷

基金：

美国国家科学基金会;

关键词：

coalescence; surfactants; single drops; polymers; liquid/liquid interface; interfacial viscosity;

D O I：

10.1080/00986449508936305

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The stability of single oil droplets at a liquid-liquid interface in the presence of surfactants/polymers was investigated and the coalescence time of oil droplets at an oil-aqueous surfactant solution interface was measured in a specially constructed coalescence cell. A unique feature of the experimental set-up was that the drop size could be controlled quite accurately and was independent of the interfacial tension and the difference in the densities of the two phases used. The coalescence time of oil droplets correlated favorably with interfacial viscosity of the system. However, no correlation was found between interfacial tension and coalescence time or the rate of coalescence. Both the coalescence time and interfacial viscosity were found to be strong functions of the surfactant concentration.

引用

页码：207 / 222

页数：16

共 18 条

[1]

Edwards DA, 1991, INTERFACIAL TRANSPOR

[2]

ELTON GAH, 1957, 2 P INT C SURF ACT L, V1, P288

[3] EFFECT OF APPLIED FORCE ON DRAINAGE OF FILM BETWEEN A LIQUID DROP AND HORIZONTAL SURFACE [J].