不同油相微乳液性质及其增溶菲的性能研究

以Tween 80为表面活性剂，正戊醇为助表面活性剂，3种不同的植物油（大豆油、棕仁油、葵花油）作为油相构建微乳相图，探究不同油相对微乳液性质的影响.制备了不同油相与表面活性剂质量比（O/S）的3种植物油基系列微乳液，并对比了它们对菲的增溶效果.结果表明，不同油相对微乳液的成相能力及稀释特性影响较大，其中棕仁油 > 葵花油 > 大豆油.3种油相微乳液在不同含水量下具有相似的电导率变化趋势且均为牛顿型流体.制备的3种植物油基系列微乳液对菲的增溶能力均随体系中油含量的增加而提高，其中大豆油基微乳液对菲的增溶效果最差，而棕仁油微乳液在O/S值为0.1时对菲的增溶效果最好，可达2.18g/L.

Properties of microemulsions with different oil phase and their solubilization capacities for phenanthrene

The phase diagrams of microemulsion systems comprised of Tween 80 as surfactant, pentanol as co-surfactant and three different vegetable oils (soybean oil, palm kernel oil, sunflower oil) as oil phase were constructed for studying the effect of different oils on the properties of microemulsions. Three different vegetable oil-based microemulsions were prepared with different mass ratios of oil/surfactant (O/S), and the solubilization of phenanthrene were compared. The results indicated that different oils had great influence on the phase forming ability and dilution characteristic. The phase forming and dilution abilities of three microemulsions were weakened in the order:palm kernel oil > sunflower oil > soybean oil. The three vegetable oil-based microemulsions with different water contents had similar conductivity trends and showed Newtonian behavior. The solubilization capacities of the prepared microemulsions for phenanthrene increased with the increase of oil content in the system. The soybean-based microemulsion had the lowest solubilization capacity for phenanthrene. The palm kernel oil-based microemulsion had the maximal solubilization capacity for phenanthrene at O/S=0.1, which can up to 2.18g/L.