用乳化度评价中相微乳

用乳化度评价中相微乳;微乳相图;表面活性剂;油相性质;盐宽;用乳化度评价中相微乳

Evaluation of Middle Phase Microemulsion by Emulsibility Value

The effects of three kinds of surfactants(dodecyl sodium sulfate, Xinjiang petroleum sulfonate, Shengli petroleum sulfonate) and oil property on the microemulsion phase diagrams have been studied by emulsibility, i.e. E value, which is difined as the ratio of middle phase area to the total area of three phases in the phase diagrams. The results show that both surfactant and property of oil greatly affect the microemulsion phase diagrams. For Xinjiang petroleum sulfonate, the middle phase has the biggest height, but the smallest salt breadth, its E value is 0.378; for Shengli petroleum sulfonate, the microemulsion phase diagram is always consisted of three phases, where the salt breadth is very large, but the smallest height of middle phase, its E value is 0.112; for dodecyl sodium sulfate, the height of middle phase and salt breadth are medium, and E value is 0.201. For crude higher oil content in oil phase, its E value is small and salt breadth is greater.