摘要
在双-2-乙基已基琥珀酸磺酸钠(简称AOT)-醇-正辛烷-盐水体系中,它们能形成多相微乳液.本文系统研究了表面活性剂的浓度(1.0—7.0%),醇的种类(乙醇、正丙醇、正丁醇、正戊醇)和其浓度(1.0-7.0%)以及油的种类等因素,对其中相微乳液的形成和特性的影响.这些特性(最佳含盐量S,盐宽△S,界面张力等)对于实际应用是非常重要的.最后还与十二烷基磺酸钠体系进行了对比,并对其中得到的规律在理论上进行探讨.
The experiments show that the middle phase microemulsions can form in di(2-ethylhexyl) sulfosuccinate (AOT) / alcohol / octane / brine systems containing highly purified surfactant. These systems have been investigated using salinity scanning and interfacial tension methods.
The formation and characteristic of middle phase microemulsion are affected markedly by the concentration of AOT. The range studied was from 1.0% to 7.0%. Salinity and the kind as well as the concentration of alcohol were also found to have an effect. Alcohols studied include ethanol, n-propanol, n-butanol and n-pentanol, which concentration of the alcohols used was from 1.0% to 7.0%. Some differences between the system with AOT and AS (sodium dodcyl sulfonate) are also disscussed. Some rules have been found and theoretical discussions have been attempted. This is believed to be practically important in formulating detergents and cosmetics.
基金
国家自然科学基金资助项目
