交联型阳离子聚丙烯酰胺乳液的合成与应用  

Synthesis and Application of Cross-linked Cationic Polyacrylamide( CPAM) Emulsion

作　　者：李旺[1] 胡惠仁[1] 

机构地区：[1]天津科技大学天津市制浆造纸重点实验室,天津300457

出　　处：《中国造纸》2014年第6期13-19,共7页China Pulp & Paper

摘　　要：水基分散体交联型阳离子聚丙烯酰胺(CPAM)是一种新型的阳离子助留助滤剂,具有抗高剪切力和抗盐作用。本实验采用分散聚合法合成了一种固含量为15%的交联型CPAM乳液,研究了其合成的最佳工艺条件,并将自制交联型CPAM与市售直链型CPAM进行比较。结果表明,当总单体质量分数为15%,甲基丙烯酰氧乙基二甲基氯化铵(DMC)与丙烯酰胺(AM)的摩尔比为0.15,引发剂用量为单体总质量的0.11%,N,N'-亚甲基双丙烯酰胺(MBA)用量为40 mg/kg,甲基烯丙基磺酸钠(SMAS)用量为600 mg/kg,反应温度为56℃时,所合成产品的性能最优。在高剪切力与高电导率条件下,自制交联型CPAM的助留助滤性能优于市售直链型CPAM乳液的。Water-based dispersive cross-linked cationic polyacrylamide（ CPAM） is a new cationic aid of retention and drainage,which has good performance under high shear and high conductivity circumstance. In the present work,a type of cross-linked CPAM emulsion with solid content of 15% was prepared,the optimum synthesis conditions were investigated,and the cross-linked CPAM was applied in imitating fine paper production as retention and drainage aid to compared with a linear polymer. The results showed that the synthetic CPAM had optimal performance when the mass fraction of comonomers was 15%,initiator,MBA and SMAS were 0. 11%,40 mg /kg and 600 mg /kg,respectively,reaction temperature was 56℃. The retention and drainage performance of cross-linked CPAM was better than that of the commercial linear CPAM emulsion under high shear and high conductivity conditions.

关 键 词：助留助滤剂 阳离子聚丙烯酰胺 交联 

分 类 号：TS727.2[轻工技术与工程—制浆造纸工程]