FACTORS CONTROLLING THE STABILITY OF COLLOID-STABILIZED EMULSIONS .4. EVALUATING THE EFFECTIVENESS OF DEMULSIFIERS

被引：35

作者：

TAMBE, D ^{[1
]}

PAULIS, J ^{[1
]}

SHARMA, MM ^{[1
]}

机构：

[1] UNIV TEXAS, AUSTIN, TX 78712 USA

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1995年 / 171卷 / 02期

关键词：

D O I：

10.1006/jcis.1995.1203

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

It is shown through measurements of interfacial rheology that the effectiveness of demulsifiers is directly correlated with short relaxation times (for viscoelastic interfaces) and lower dilational elasticities and viscosities of the oil-water interface. Short re laxation times imply that interfacial tension gradients that slow film thinning are suppressed, A reduction in interparticle interactions at the interface results in smaller dilational elasticities and viscosities as well as a decrease in the magnitude of steric hindrance. (C) 1995 Academic Press, Inc.

引用

页码：463 / 469

页数：7

共 12 条

[1]

Berger P. D., 1988, SPE PROD ENG, V3, P522

[2]

CAYIAS JL, 1975, ADSORPTION INTERFACE, V8, P234, DOI DOI 10.1021/BK-1975-0008.CH017

[3]

JONES TJ, 1978, J CAN PETROL TECHNOL, V17, P100

[4] CHEMICAL DEMULSIFICATION OF PETROLEUM EMULSIONS USING OIL-SOLUBLE DEMULSIFIERS [J].