用可聚合乳化剂制备氟化丙烯酸酯无皂乳液

Use of polymerizable emulsifier in fluorinated acrylate emulsifier-free emulsion

以丙烯酸丁酯、甲基丙烯酸甲酯、甲基丙烯酸三氟乙酯为基本原料,用可聚合乳化剂,通过连续滴定方法制备氟化丙烯酸酯无皂乳液。讨论了不同乳化剂和用量以及乳液预乳化稳定性等对转化率的影响。结果表明,在相同的乳液聚合体系中,采用可聚合乳化剂制得的无皂乳液,其胶膜表面能比使用一般乳化剂体系的为低。

The fluorinated acrylate emulsifier-free emulsion was prepared by continuous dropping method using butyl metharylate, methyl methacrylate, trifluoroethyl methacrylate as raw materials. We discussed the effect of the type and the amount of polymerizable emulsifier and the stability of pre-cmulsion on conversion. The results showed that the film prepared with polymerizable emulsifier have lower surface energy than that prepared with conventional emulsifier.