复合引发体系制备阳离子聚丙烯酰胺及其应用

将复合引发体系用于甲基丙烯酰氧乙基三甲基氯化铵(DMC)和丙烯酰胺(AM)水溶液共聚,制备了阳离子聚丙烯酰胺类絮凝剂P(DMC-AM)。探讨了单体质量分数、引发剂用量,反应时间等因素对聚合物特性粘数的影响,并利用红外光谱对其结构进行了表征。实验结果表明,最佳反应条件为:引发剂质量分数为0.014%,单体质量分数30%。DMS与AM的质量比为1∶1,pH值为5.5,反应时间为5￣6h。将其应用于十堰市污水厂废水,对废水的CODCr去除率达到80%以上,对色度和浊度的去除率达到95%以上,是一种性能优良的絮凝剂。

Synthesis of cationic polyacrylamide by complex initiation system and application thereof

Complex initiation system was used in the aqueous solution polymerization of DMC and AM,the cationic polyacrylamide P(DMC-AM) was prepared.The effects of the monomer mass fraction,the dosage of initiator,the reaction time and some other factors on the intrinsic viscosity of the polymer were studied with its structure confirmed by the infra-red spectrogram.The results of the test show that,the optimal reaction condition is: the mass fraction of the initiator is 0.014%,the monomer mass fraction is 30%,the mass ratio of DMS and AM is 1 ∶ 1,the pH value is 5.5,the reaction time is 5-6 h.When it was used to treat wastewater from wastewater treatment plant of Shiyan,the removal rate of CODCr is above 80%,the removal rate of colority and turbidity are all above 95%,so it can draw a conclusion that P(DMC-AM) is a flocculant with good performance.