两性聚丙烯酰胺的合成及其增强性能研究  

A study on synthesis of amphoteric polyacrylamide and its application

作　　者：肖光 陈夫山[1] 宋晓明[1,2] XIAO Guang;CHEN Fu-shan;SONG Xiao-ming(Qingdao University of Science and Technology,Qingdao 266422,Shandong,China;Shandong Chenming Paper Group Co.,Ltd.,Shouguang 262700,Shandong,China)

机构地区：[1]青岛科技大学,山东青岛266422 [2]山东晨鸣纸业集团有限公司,山东寿光262700

出　　处：《中华纸业》2019年第6期40-43,共4页China Pulp & Paper Industry

基　　金：山东省青年基金项目(ZR2017QB002));山东省重点研发项目(2018GGX104003;2018CXGC1001);中国博士后面上项目(2018M632638)

摘　　要：以二烯丙基二甲基氯化铵、丙烯酰胺、丙烯酸为原料,以过硫酸铵和亚硫酸氢钠为引发剂合成了两性聚丙烯酰胺增强剂,并对纸张的增强性能进行了研究。结果表明:单体配比(Am/DADMAC)(质量比)在2.28最宜;引发剂浓度在0.2%左右;反应温度在60℃左右;反应时间在2.0～2.5h之内;合成的两性聚丙酰胺的分子量可达50万。当浆内添加量为0.3%时,对纸张有明显的增强效果。Amphoteric polyacrylamide was synthesized using diallyldimethylammonium chloride, acrylamide and acrylic acid as raw materials, ammonium persulfate and sodium bisulfite as initiator, with which physical strength performance of paper was studied. The results show that the optimum synthesis conditions are as follows: the ratio of monomer (Am/DADMAC) 2.26, the initiator concentration 0.2%, reaction temperature around 60℃, reaction time 2.0h. Under these conditions, the molecular weight of polyacrylamide could reach up to 500000, which is added in pulp slurry as strengthening agent with the dosage of 0.3%, the best strengthening effect can be obtained.

关 键 词：两性聚丙烯酰胺 增强剂 溶液聚合 分子量 

分 类 号：TS727.5[轻工技术与工程—制浆造纸工程]