十二烷基磺酸钠/醇/烷烃/NaCl水溶液四元体系微乳液相行为研究  

Studies on the Phase Behavior of Microemulsion Based on Sodium Dodecyl Sulfonate/ Alcohol/ Alkane/ NaCl Aqueous Solution

作　　者：王玉林[1] 解爱华[1] 冯一民[2] 

机构地区：[1]济宁职业技术学院,山东济宁272100 [2]潍坊学院化学系,山东潍坊261061

出　　处：《浙江化工》2008年第8期10-14,共5页Zhejiang Chemical Industry

摘　　要：用Winsor相图研究了十二烷基磺酸钠(AS)/正丁醇/烷烃/NaCl水溶液体系中相微乳液的相行为。结果表明,随醇浓度的增加,四元体系发生由水包油(O/W)型经中相微乳液(B.C.)到油包水(W/O)型微乳液的转变;表面活性剂浓度越大,得到的中相微乳液体积越大;形成中相微乳液时需要醇的量增加;中相微乳液形成和消失时对应的单位质量表面活性剂需要的醇量随表面活性剂浓度的增加而减小。本文研究了不同碳链长度的烷烃、脂肪醇和盐溶液对微乳液相行为的影响。The middle phase behavior of quaternary system microemulsion based on sodium dodecyl sulfonate/alcohol/alkane/NaC1 aqueous solution was studied with Winsor phase diagram. The results indicated that with the increase in alcohol concentration, a series of phase behavior from oil-in-water （O/W） micromulsion to water-in-oil （W/O） microemulsion vis middle phase （B.C.）microemulsion; the larger the concentration of surfactant, the large in volume of the middle phase microemulsion, and the larger amount of alcohol to form middle phase microemulsion; however, the relative smaller amount of alcohol for per gram of surfactant. The influencing factors, such as alkane and alcohol with different length of hydrocarbon chain, and different concentrations of NaCl aqueous solution on the phase behavior were also investigated.

关 键 词：中相微乳液 Winsor相图 十二烷基磺酸钠 

分 类 号：O648.23[理学—物理化学]