聊城大学学报：自然科学版2012，Vol.25Issue(1)：46-51,6.
二元表面活性剂混合体系表面活性及胶束形成热力学
Surface Properties and Thermodynamic Properties of Micellization in Binary Mixtures of Surfactants
摘要
Abstract
The surface properties and thermodynamic parameters of micellization for binary systems of oleylpolyoxyethylene（10）（Brij97）/sucrose stearate,oleylpolyoxyethylene（20）（AEO20）/sucrose stearate and Brij97/Lecithin were calculated from surface tension data.The effect of temperature on mixed systems which molar fraction is 0.5were discussed.The results reveal that the three investigated systems show non-ideality in the micelle formation.The three systems have been showed（1）Compared with AEO20,Brij97can enhance the surface properties of sucrose stearate obviously.the larger the mole fraction of Brij97,the decreasinger the CMC,γCMC and free energy（ΔGom）of micellization in Brij97/su-crose steatite mixed surfactants.（2）The surface properties and the capacity of forming micelle are de-creased by Lecithin and sucrose steatite,and the effect of Lecithin on Brij97is obvious.（3）in the range of 25℃to 45℃,the three mixed systems form micelle easily as the temperature increase.关键词
表面活性剂混合体系/表面张力/CMC/热力学函数（ΔGom、ΔHom、ΔSom）Key words
surfactant mixtures/surface properties/CMC/thermodynamic parameters(ΔGom、ΔHom、ΔSom)分类
化学引用本文复制引用
王慧敏,王仲妮,周武..二元表面活性剂混合体系表面活性及胶束形成热力学[J].聊城大学学报：自然科学版,2012,25(1):46-51,6.基金项目
国家自然科学基金 （）
山东师范大学第二批实验教学改革立项 （）
