粉末二氧化钛稳定的皮克林防晒乳液的制备研究

Investigation on preparation of sunscreen Pickering emulsion stabilized by TiO_2 powder

通过设计一个皮克林乳液颗粒基础配方,研究了影响粉末钛白粉稳定的皮克林乳液稳定性的因素,并通过少量助乳化剂和流变调节剂的加入得到了稳定的皮克林防晒乳液体系。结果表明,粉末颗粒可以在一些体系中较好的稳定乳液;颗粒的添加量和亲油性对乳液的稳定性都有一定的影响;在体系中复配加入不同的助乳化剂及流变调节剂时,稳定体系的效果最显著。

The influencing factors on the stability of the Pickering emulsion that was stabilized by TiO2 powder were studied based on a designed formulation.Stable systems of sunscreen Pickering emulsions were obtained by the addition of small amounts of co-emulsifiers and rheology modifiers.The results show that TiO2 powder can well stabilize some emulsion systems;both the dosage and lipophilicity of TiO2 powder are important factors on emulsion stability;adding co-emulsifiers and rheology modifiers in the formulated system can remarkably enhance the emulsion stability.