华南理工大学学报(自然科学版) ›› 2008, Vol. 36 ›› Issue (3): 32-36.

• 化学化工 • 上一篇    下一篇

油包水微乳液体系的稳定性分析

邹华生 陈江凡 陈文标   

  1. 华南理工大学 化工与能源学院, 广东 广州 510640
  • 收稿日期:2007-01-22 出版日期:2008-03-25 发布日期:2008-03-25
  • 通信作者: 邹华生(1957-),男,教授,主要从事清洁能源与环境工程研究. E-mail:cehszou@scut.edu.cn
  • 作者简介:邹华生(1957-),男,教授,主要从事清洁能源与环境工程研究.
  • 基金资助:

    广东省自然科学基金资助项目(06025662)

Stability Analysis of Water-in-Oil Microemulsion System

Zou Hua-sheng  Chen Jiang-fan  Chen Wen-biao   

  1. School of Chemical and Energy Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2007-01-22 Online:2008-03-25 Published:2008-03-25
  • Contact: 邹华生(1957-),男,教授,主要从事清洁能源与环境工程研究. E-mail:cehszou@scut.edu.cn
  • About author:邹华生(1957-),男,教授,主要从事清洁能源与环境工程研究.
  • Supported by:

    广东省自然科学基金资助项目(06025662)

摘要: 将表面活性剂Tween80和Span80复配,以环己烷为油相制备高度分散、液滴均匀的油包水(W/O)型微乳液.以最大增溶水量为指标,通过目测及测定体系电导率,研究了表面活性剂复配、四种醇类助表面活性剂、温度和盐度等因素对微乳液体系稳定性的影响,探索该微乳液形成的适宜条件.实验结果表明:当复配表面活性剂中Tween80的含量为60%、乙醇作助表面活性剂、助表面活性剂与复配表面活性剂质量比Km=1.0时,可得到作为微反应器的理想微乳液体系;随温度升高,W/O微乳液体系相图的稳定区域减小,盐度对微乳液稳定性的影响减小.

关键词: 油包水微乳液, 稳定性, 拟三元相图

Abstract:

In this paper, highly dispersed water-in-oil (W/O) microemulsion with uniform drop size was prepared by using the composite surfactant Tween80-Span80 and by taking cyclohexane as the oil phase. Then, for the purpose of obtaining the maximum solved water, the influences of such factors as the surfactant composition, four alcohol cosurfacants, the temperature and the salinity on the microemulsion stability were investigated by means of visual inspection and conductivity measurement. The optimum conditions for preparing the microemulsion were finally obtained. Experimental results show that, when the mass fraction of Tween80 in the composite surfactant is 60% and the mass ratio of the consurfactant ethanol to the composite surfactant (Km) is 1.0, the best W/O microemulsion system as an ideal microreactor can be prepared, and that, with the increase in temperature, the stable region of the microemulsion in phase diagram decreases and the influence of salinity on the region becomes slight.

Key words: water-in-oil microemulsion, stability, quasi-ternary phase diagram