摘要：

通过自由基溶液聚合，以丙烯酰胺、丙烯酸钠及2-丙烯酰亚胺基-2-甲基丙烷三甲基氯化铵为单体合成了两性聚丙烯酰胺，与结构相似的阳离子、阴离子和非离子聚丙烯酰胺对比研究了助滤性能，同时研究了助滤剂用量，溶液pH值等因素对助滤效果的影响。

关键词: 两性聚丙烯酰胺, 自由基聚合, 聚合物助滤剂, 助滤

Abstract:

Amphoteric polyacrylamide was synthesized in aqueous solutions through radical synthesis. Its function as filter aid was studied, comparing with that of non-ionic, cationic and anionic polyacrylamide in the process of intensified filtration. The effects of the dosage of polyacrylamide and the effects of slurry pH on the filter aid efficiency were investigated also.

Key words: radical synthesis, amphoteric polyacrylamide, intensified filtration, polymer filter aid