油酸/氨水-醇-燃油-水微乳体系形成过程热力学函数的研究  

Thermodynamic functions in the course of forming oleic acid/ammonia fuel oil alcohol water microemulsion system

作　　者：张强[1] 汪晓东[1] 金日光[1] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029

出　　处：《北京化工大学学报（自然科学版）》2001年第3期24-26,38,共4页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：原国家教委博士点基金资助项目 ( 1 2 2 60 53 0 )

摘　　要：研究了油酸 /氨水 燃油 醇 水微乳体系的形成过程热力学。结果发现 ,助表面活性剂醇和燃油的种类、燃油含量和环境温度等因素皆影响此过程热力学函数的变化。在微乳液形成过程中 ,助表面活性剂醇从连续相油相进入微乳液界面层的标准自由能变化ΔGs<0 ;标准焓变ΔHs=0 ,为无热效应过程 ;ΔGs 是由醇分子的混乱度熵变ΔSs 决定的。The thermodynamic functions of forming oleic acid/ammonia fuel oil alcohol water microemulsion system were investigated. It was found that the standard free energy Δ G s was related to the kinds of alcohol and fuel oil, content of fuel oil and environmental temperature. In the course of forming microemulsion, the standard free energy Δ G s of alcohol diffusing from continuous oil phase to boudary surface is negative, standard enthalpy Δ H s=0, and Δ G s was contributed by standard entropy Δ S s.

关 键 词：油酸/氨水 燃油 醇 微乳液 热力学函数 水 三元相图 标准自由能 标准焓变 

分 类 号：O642.1[理学—物理化学] O648.23[理学—化学]