Preparation of Polysilicone-polyether Modified Emulsion Defoamer Agent

The emulsion defoamer agent was prepared by using simethicone,defoamer agent polysilicone,polyether and suitable emulsifying agent.It had the properties of polysilicone and polyether.The factors including the ratio of polysilicone-polyether and the select of emulsifying agent were researched,which influenced the defoamer effect.