【摘要】 以丙烯酰胺(AM)和丙烯酰氧乙基三甲基氯化铵(DAC)为单体,Span80-Tween80为复合乳化剂,液体石蜡为连续相,通过反相乳液聚合法制备阳离子型高分子聚丙烯酰胺。研究了油水体积比对聚合物特性粘度的影响,乳化剂用量对聚合物特性粘度的影响,单体用量对聚合物特性粘度的影响,阳离子度对聚合物特性粘度的影响及引发剂用量对聚合物特性粘度的影响。结果表明:在油水体积比为1∶1.6、乳化剂用量为30%、单体用量为30%、阳离子度为60%即n(AM)∶n(DAC)为2∶3,引发剂用量为0.15%的条件下,得到的聚合产物粘度较大且具有良好的稳定性和溶解性。对产物进行了红外结构表征,并研究了产物的污泥脱水性能,获满意结果。更多还原

【Abstract】 The cationic polyacrylamide is synthesized by acrylamide(AM) and propenoyl-ethyl trimethyl ammonium chloride(DAC) through inverse emulsion polymerization,using liquid paraffin as continuous phase and Span80-Tween80 as compound emulsifier.The influence factors for the viscosity of product and the stability of the system are discussed,such as the ratio of oil to water,emulsifier dosage,monomer dosage,cationic degree and initiator dosage.When the volume ratio of oil to water is 1∶1.6,the emulsifier dosage is 30%,the monomer dosage is 30%,the cationic degree is 60%,i.e.the molar ratio of AM to DAC is 2∶3,and the initiator dosage is 0.15%,the obtained product has high viscosity and stability.The effects of viscosity and polymer dosage on flocculating are studied in flocculating experiment,and the polymer structure is analyzed by IR spectrum.更多还原