在不同含水量时醇对W/O型微乳液体系结构参数的影响  

Changes of Structural Parameters of W/O Microemulsion Systems with the Increasing Carboatomic Numbers of Straight Chain Alcohol by Different Water Contents

作　　者：刘晓红[1] 章小明[1] 许春晓[1] 

机构地区：[1]南昌大学环境与化学工程学院,江西南昌330031

出　　处：《南昌大学学报（工科版）》2011年第4期328-331,337,共5页Journal of Nanchang University(Engineering & Technology)

摘　　要：采用稀释法研究了CTAB-醇-正庚烷-水四组分微乳液体系中在不同含水量、不同醇时体系的结构参数。结果表明:随着含水量增加,微乳液体系的水内核半径Rw、颗粒有效半径Re、界面厚度l和平均聚集数—n递增,颗粒总数Nd和分散相的总界面面积Ad逐渐降低。随着含水量增加,正丁醇为助表面活性剂时,体系的-ΔGc→i线性减小,而以中长碳链醇为助表面活性剂的-ΔGc→i呈现先减小后增加的特点。It was studied on the changes of the structural parameters of W/O microemulsion systems CTAB/alcohol/ n-heptane/water with increasing carboatomic numbers of straight chain alcohol by different water contents. With increase of moisture content,the radius of inner water droplet Rw, the effective radius of particle R~, tile length of interface l and the average aggregation number of surfactant n gradually increased. But the total interracial area of dispersed phase Ad and the total particle count Nd gradually decreased in this systems. The system of - AGI., was linearly decreased for the cosurfactant of n-butanol. However, the system of - △Gc→i was decreased and then in- creased for the medium chain and long chain alcohol cosurfactant.

关 键 词：醇 微乳液体系 结构参数 正庚烷 

分 类 号：O65[理学—分析化学]