Study on new technology of preparing silicone oil emulsion

Stable silicone oil emulsions were prepared at room temperature using a stirrer developed by ourselves.The silicone oil was dimethicone(500 000 mm2/s),and three nonionic surfactant,AEO3,AEO7,OP emulsifier,were mixed as emulsifier.The technology parameters of emulsifying were systematically studied and the optimal conditions were obtained:emulsifier concentration 5%(related to total emulsion amount),emulsifying time 80 min.Under these conditions,emulsions with uniform and exquisite appearances and good stability and dispersibility were obtained.The emulsions had a solid content of about 56% and it was unnecessary to adjust the pH of the emulsions.