无机盐对十六烷基三甲基溴化铵（CTAB）微乳液相行为的影响

doi:10.16085/j.issn.1000-6613.2017-2386

化工进展 ›› 2018, Vol. 37 ›› Issue (08): 2942-2947.DOI: 10.16085/j.issn.1000-6613.2017-2386

无机盐对十六烷基三甲基溴化铵（CTAB）微乳液相行为的影响

周平平¹, 刘会娥¹, 陈爽¹, 于文赫^2,3, 张秀霞¹

1 中国石油大学(华东)重质油国家重点实验室, 山东青岛 266580;
2 石油石化污染物控制与处理国家重点实验室, 北京 102206;
3 中国石油安全环保技术研究院, 北京 102206

收稿日期:2017-11-19 修回日期:2018-01-03 出版日期:2018-08-05 发布日期:2018-08-05
通讯作者: 刘会娥
作者简介:周平平(1991-),女,硕士研究生。
基金资助:
重质油国家重点实验室项目（SLKZZ-2017002）及中国石油科技创新基金项目（2017D-5007-0601）。

Effects of inorganic salts on phase behavior of CTAB microemulsion

ZHOU Pingping¹, LIU Huie¹, CHEN Shuang¹, YU Wenhe^2,3, ZHANG Xiuxia¹

1 State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, Shandong, China;
2 State Key Laboratory of Petroleum Pollution Control, Beijing 102206, China;
3 CNPC Research Institute of Safety and Environmental Technology, Beijing 102206, China

Received:2017-11-19 Revised:2018-01-03 Online:2018-08-05 Published:2018-08-05

摘要/Abstract

摘要： 微乳液通常由水、油、盐、表面活性剂及助剂组成，各组分对微乳液体系的相行为及增溶情况都有影响。本文利用Winsor相图和ε-β鱼状相图来研究无机盐种类、浓度对十六烷基三甲基溴化铵（CTAB）型微乳液相行为的影响。研究发现，随着无机盐浓度或醇量增加，微乳液都会发生从WinsorⅠ→WinsorⅢ→WinsorⅡ的相转变，但具有不同阳离子或阴离子的无机盐对微乳液体系相行为的影响不同。无机盐在微乳液体系中主要与表面活性剂的反离子发生作用，对阳离子表面活性剂配成的微乳液体系，无机盐阴离子的作用比较强，且价态越高，离子半径越大，对微乳液相态的影响越大。通过对不同无机盐条件下的界面组成及增溶参数分析可知：无机盐种类的改变对鱼头、鱼尾点表面活性剂含量及醇在界面层中的分布影响较小；无机盐中阴离子改变对微乳液增溶能力影响较大，阳离子的改变对微乳液增溶能力影响较小。

关键词: 微乳液, 相行为, 反离子, 离子半径, 增溶

Abstract: Microemulsion is usually composed of water, oil, salt, surfactant and additives, and each component affects phase behavior and solubilization of microemulsion system. The effects of inorganic salt species and concentration on phase behavior of CTAB microemulsion were studied by using Winsor phase diagram and ε-β fish phase diagram. It was found that the microemulsion of Winsor I→ Winsor Ⅲ→Winsor Ⅱ changed with the increase of inorganic salt concentration or alcohol content, but the inorganic salt with different cations or anions had different effects on phase behavior of microemulsion system. In the microemulsion system, inorganic salt mainly reacts with the counter ion of the surfactant. The inorganic salt anion has a stronger effect on cationic surfactant of microemulsion system, and the higher the valence state, the greater the ionic radius, the greater the effect on microemulsion phase. Through the analysis of interfacial composition and solubilization parameters under different inorganic salt conditions, the change of inorganic salt species had little effect on the distribution of fish head and fish surface surfactant and the distribution of alcohol in the interface layer;the change of anion in inorganic salt has a great effect on the solubilization ability of microemulsion. The change of cation has little effect on the solubilization ability of microemulsion.

Key words: microemulsion, phase behavior, counter-ions, ionic radius, solubilization

中图分类号:

O648

周平平, 刘会娥, 陈爽, 于文赫, 张秀霞. 无机盐对十六烷基三甲基溴化铵（CTAB）微乳液相行为的影响[J]. 化工进展, 2018, 37(08): 2942-2947.

ZHOU Pingping, LIU Huie, CHEN Shuang, YU Wenhe, ZHANG Xiuxia. Effects of inorganic salts on phase behavior of CTAB microemulsion[J]. Chemical Industry and Engineering Progress, 2018, 37(08): 2942-2947.

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无机盐对十六烷基三甲基溴化铵（CTAB）微乳液相行为的影响

Effects of inorganic salts on phase behavior of CTAB microemulsion

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