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).
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页码：398 / 403
页数：6
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