淀粉接枝阳离子絮凝剂的制备及性能研究  

Study on Preparation of Cationic Flocculant by Starch Grafting and Its Performance

作　　者：贡燕君 任轶[1] 金东青[2] 

机构地区：[1]沈阳市环境保护局大东分局,沈阳110041 [2]沈阳市环境监测中心站,沈阳110016

出　　处：《环境保护科学》2009年第2期46-47,51,共3页Environmental Protection Science

摘　　要：主要利用化学方法对环氧氯丙烷和胺类进行阳离子改性获得阳离子醚化剂,然后与碱化后的淀粉接枝制得一种絮凝性能良好的有机高分子阳离子絮凝剂,并对所得产品作了絮凝性能实验。由实验得知该絮凝剂对悬浮细小颗粒有很好的去除效果,如高岭土溶液(1g/L)产生矾花时间较短,加入絮凝剂后搅拌3min左右即可产生明显絮体,且絮体较大,静置后透光率达90%以上。This article mainly studied the high polymer cationic flocculant made from modified starch. Using chemistry method to modify the epichlorohydrine and the amines to obtain the cationic etherifying agent monomer, and grafting on the alkalize starch,one kind of high polymer organic cationic flocculant with better performance was prepared. The flocculation performance experiments were done for the prepared flocculant. The results showed that the flocculant had better effect on removal of suspended particles. For example,adding the flocculant to kaolin solution（tg/L）, the flocculation time was shorter, the flocculation particles were bigger and the euphoric rate was above 90%.

关 键 词：阳离子絮凝剂 醚化 淀粉 接枝 

分 类 号：X703.5[环境科学与工程—环境工程] TQ324.9[化学工程—合成树脂塑料工业]