S-DMDAAC-AM阳离子型高分子絮凝剂的合成及性能研究  

Synthesis of S-DMDAAC-AM Cationic Flocculants and Properties

作　　者：达超超[1] 闫沙沙[1] 赵亚洲[1] 马雄[1] 刘军海[1] 

机构地区：[1]陕西理工学院化学与环境科学学院,陕西汉中723001

出　　处：《化工技术与开发》2011年第3期1-3,13,共4页Technology & Development of Chemical Industry

基　　金：陕西理工学院大学生基金项目(SLGDXS20090012)

摘　　要：以淀粉(S)、二甲基二烯丙基氯化铵(DMDAAC)、丙烯酰胺(AM)为原料,采用氧化还原引发体系,合成了接枝共聚物S-DMDAAC-AM。考察了反应温度、反应时间、引发剂浓度、单体配比等因素对接枝共聚体系的接枝率、接枝效率和絮凝效果等因素的影响。试验结果表明,最优条件为淀粉(S)∶单体总量=3.5g∶10.5g,反应温度70℃,反应时间4h,引发剂浓度0.035g,单体配比AM∶DMDAAC=7∶3,在此条件下,平均接枝率G为144.26%,平均接枝效率GE为82.65%,平均污水处理透光率为69.37%。Starch（S）,diallyl dimethyl ammonium chloride（DMDAAC）,acrylamide（AM） as raw materials,using redox initiator system,the graft copolymers S-DMDAAC-AM was synthesized.The effects of reaction temperature,reaction time,initiator concentration,monomer ratio on the graft copolymerization of grafting ratio,grafting efficiency,and flocculation and other factors were investigated.The results showed that optimum conditions for starch（S） ∶ monomer volume=3.5g ∶ 10.5g,reaction temperature 70℃,reaction time 4h,initiator concentration and 0.035g,monomer ratio AM ∶ DMDAAC=7 ∶ 3.Under the condition,the average grafting rate G was 144.26%,the average grafting efficiency GE was 82.65%,the average light transmission rate of sewage treatment was 69.37%.

关 键 词：淀粉 二甲基二烯丙基氯化铵 丙烯酰胺 接枝共聚絮凝剂 

分 类 号：TQ314.253[化学工程—高聚物工业]