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1 前言 微乳液是由正构烷烃、表面活性剂、辅助表面活性剂和缓冲液通过超声处理而组成的稳定透明液体-纳米级大小的微乳液滴,分散在缓冲液中作为假固定相油相和水相间存在着很高的表面张力,两者互不相溶,当表面活性剂加入后,由于表面活性剂具有两亲性,其亲油端插入油滴的内部,亲水端在水相当中,降低了油水间的表面张力,使得微乳液的形成成为可能 辅助表面活性剂(如短链醇)加入后,它插入到表面活性剂的中间,进一步降低表面张力,使表面张力几乎降至零,表面活性剂和辅助表面活性剂在油滴表
1 Introduction Microemulsion is a stable and transparent liquid consisting of n-alkanes, surfactants, co-surfactants and buffer solution by ultrasonic treatment - nano-sized microemulsion droplets dispersed in buffer as a pseudo-stationary phase oil phase And water phase exist high surface tension, both mutually incompatible, when the surfactant is added, due to the amphiphilic surfactant, the lipophilic end of its insertion into the oil droplets, the hydrophilic end of the water equivalent , The surface tension between oil and water is reduced so that the formation of microemulsions is made possible by the addition of a co-surfactant (such as a short-chain alcohol) which is inserted into the middle of the surfactant to further reduce the surface tension and bring the surface tension to almost Zero, Surfactants and Surfactants in Oil Drop Table