Preparation of high stability silicone oil emulsion

The silicone oil emulsion was prepared by using dimethicone with viscosity of 2 000 mPa·s as the main material.The formulation of the silicone oil emulsifier was investigated,and the preparation conditions of silicone oil emulsion were discussed,such as the amount of the emulsifier,the emulsification time,temperature,stirring speed and so on.The optimal conditions were identified that emulsifier amount 7%,emulsification temperature 70 ℃,emulsification time 30 min,stirring speed 800 r/min,adding emulsification water twice,each emulsifying time after adding was 10 min and 20 min.The silicone oil emulsion with 40% silicone oil content was prepared and has good stability and dispersion.