Studies of synergism/antagonism for lowering dynamic interfacial tension in surfactant/alkali/acidic oil systems 3. Synergism/antagonism in surfactant/alkali/acidic model oil systems

被引：34

作者：

Zhang, L ^{[1
]}

Luo, L ^{[1
]}

Zhao, S ^{[1
]}

Yang, BH ^{[1
]}

Yu, HY ^{[1
]}

机构：

[1] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100101, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2003年 / 260卷 / 02期

关键词：

dynamic interfacial tension; interfacial tension reduction; synergism; antagonism;

D O I：

10.1016/S0021-9797(02)00202-3

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：

Experimental studies have been conducted to elucidate the mechanisms responsible for synergism/antagonism for lowering dynamic interfacial tension (IFT) in surfactant/alkali/hydrocarbon and surfactant/alkali/acidic model oil systems. Dynamic IFTs between hydrocarbon/acidic model oil and alkali/surfactant solutions were measured. We learned from our experimental results that alkali has the function of decreasing n(min) values of surfactant solutions. The synergism/antagonism for lowering the stable values of dynamic IFTs in surfactant/alkali/hydrocarbon and surfactant/alkali/acidic model oil systems depends on factors that can change the EACN/n(min) value, such as the oleic acid in the oil phase and the nmin values of surfactant and alkali. A new explanation with respect to EACN/nmin values is provided. (C) 2003 Published by Elsevier Science (USA).

引用

页码：398 / 403

页数：6

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