以聚乙二醇(PEG)水溶液为分散剂,过硫酸铵(KPS)为引发剂,采用双水相聚合法,用新型阳离子单体丙烯酰氧乙基三甲基氯化铵(DAC)与丙烯酰胺(AM)共聚,制备了一系列新型阳离子聚丙烯酰胺(CPAM)类絮凝剂,讨论了单体含量对聚合物相对分子质量、转化率和阳离子度的影响.并对黄河水做了絮凝实验,讨论了CPAM投加量、pH值、搅拌速率、搅拌时间及静置时间对絮凝效果的影响.所得CPAM的阳离子度随DAC含量增加而增大,CPAM的平均相对分子质量和转化率随DAC含量增加略有下降.当CPAM投加量为0.3 mg/L,pH =6,以100 r/min搅拌15 min后,再静置10 min,絮凝效果最好,去除率达到92％.
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