两性聚合物絮凝剂的合成和性能测试  

Synthesis amphoteric polymer as flocculant and its performances

作　　者：周耿华[1] 邢会敏[1] 李正惠[1] 

机构地区：[1]北京化工大学理学院,北京100029

出　　处：《工业水处理》2005年第8期20-23,共4页Industrial Water Treatment

摘　　要：研究了两性聚合物AANa-MATMC的合成和它的性能。首先合成阳离子聚合物AM-MATMC,其合成优化条件:n(AM)∶n(MATMC)=9∶1;温度55℃;引发剂的用量为单体总质量的0.05%;聚合时间为7h。阳离子聚合物AM-MATMC部分水解得到两性聚合物AANa-MATMC,部分水解条件是温度60℃,时间90min,n(碳酸钠)∶n(丙烯酰胺基团)=1∶8,产物的收率为98.2%。性能测试结果发现:经其处理过的污水的化学需氧量、透光率及污泥滤饼含水量等指标优于国内同类产品,与进口阳离子聚丙烯酰胺比较其污泥滤饼含水量小,显示出优良的絮凝性能。The synthesis of the amphoteric polymer AANa- MATMC has been studied. First, the cationic polymer AM-MATMC is synthetized. The optimum of synthesis of cationic polymer AM-MATMC is showed that when mole ratio of AM/MATMC is 9/1 ,quantity of primer is 0.05％ （the quantity of primer/the total quantity of monomer）, temperature is 55℃, and the polymeric time is 7 h. Then, the cationic polymer AM- MATMC is hydrolyzed partly in the presence of the sodium carbonate. The yield of the amphoteric polymer AANa-MATMC in the hydrolyzed of the cationic polymer AM - MATMC is the highest （98.2%）, when the temperature of the hydrolization is 60 ℃,the time of the hydrolization is 90 rain,the mole ratio of the sodium carbonate/acrylamide group is 1/8. The performance of the amphoteric polymer AANa - MATMC is researched by the tests of chemical oxygen demand（COD）, transmilitivity and moisture content of filtered sludge. The tests indicate that the performances of the amphoteric polymer AANa- MATMC are superior to the same kind products in domestic market. The moisture content of filtered sludge treated with amphoteric polymer AANa- MATMC is less than that treated with imported cationic acrylamide. The amphoteric polymer has fine flocculability。

关 键 词：阳离子聚合物 两性聚合物:絮凝剂 

分 类 号：TQ314.253[化学工程—高聚物工业]