Preparation Technology Research of Multiple Emulsion

摘要

The factors that influence on the multiple emulsion structure were studied in this paper, including preparation technology, formulation structure, the amount of emulsifier and electrolytes. The results showed that the emulsifying temperature of 2nd second step at 50℃ was favorable for the formation of multiple emulsion structure. The optimal phase ratio was 1:1:3 (inner water phase/oil phase/outer water phase). Addition of more hydrophilic emulsifier in outer phase is favorable for formation of homogeneous and fine emulsion particle. Adding appropriate electrolyte into inner water phase will increase the osmosis pressure, thereby effectively enhancing the stability of multiple emulsion structure.