不同因素对CTAB/TX-100微乳液相图的影响  

Effect of Different Factors on Phase Behavior of CTAB/TX-100 Microemulsions

作　　者：李玲[1] 刁兆玉[1] 王仲妮[1] 

机构地区：[1]山东师范大学化学化工与材料科学学院,山东济南250014

出　　处：《化学世界》2011年第4期206-210,共5页Chemical World

摘　　要：用ε-β"鱼状"相图法研究了阳离子表面活性剂十六烷基三甲基溴化铵(CTAB)与非离子表面活性剂辛基苯酚聚氧乙烯(10)醚(TX-100)以不同摩尔比复配形成的CTAB/TX-100/醇/油/NaCl水溶液微乳液体系的相行为和增溶性能。结果表明,随着醇浓度的增加,体系由水包油型(O/W)(winsor I or 2)下相微乳液和过量的油经双连续相微乳液(B.C)(winsor Ⅲ or 3)转变为油包水型(W/O)(winsor Ⅱ or 2),并利用HLB平衡方程计算出一些相关重要的物理化学参数:βB,εB,βE,εE,AS,SO,AO,CS,CA,CA/(CA+CS),R。阳离子和非离子表面活性剂以不同摩尔比复配,由于CTAB和TX-100表面活性剂分子之间的相互作用,使复配体系比单一表面活性剂具有更好的增溶效果。并研究了NaCl水溶液、油以及醇不同因素对该体系中相微乳液相行为的影响。The phase behavior and solubilization for the microemulsions system of hexadecyl trimethyl ammonium bromide（CTAB） and octyl phenol polyoxyethylene-10ether（Triton X-100）/alcohol/oil/brine were studied with the ε-β＂ fishlike＂ phase diagram method.The phase transmissions winsor I→III→II were the results of the increase in alcohol concentrations,and some significant physico-chemical parameters（βB,εB,βE,εE,AS,SO,AO,CS,CA,R） were derived from the HLB plane equation.The unequimolar composite of cationic and nonionic surfactants made the solubilization of the microemulsion formed by mixed cationic and nonionic surfactants more effective than the single surfactant system because of the interactions between CTAB and TX-100 molecules.The effects of different alcohols,oils and inorganic salt（NaCl） on the middle-phase behavior of microemulsions were also investigated.

关 键 词：微乳液 表面活性剂 增溶性能 “鱼状”相图 

分 类 号：O647.2[理学—物理化学]