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.
出处
《中国造纸》
CAS
北大核心
2014年第6期13-19,共7页
China Pulp & Paper
关键词
助留助滤剂
阳离子聚丙烯酰胺
交联
retention and drainage aid
cationic polyacrylamide
cross-linked
