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。