Based on trials,it is found that pre-emulsifying and whole dropping process can mix monomer evenly,and be of benefit to emulsion polymerization and stable property of the products.

• 试验表明,在采用混合共聚单体时,通过预乳化全滴加工艺,可使单体混合均匀,有利于乳液正常进行聚合,以及产品性能稳定。