阳离子瓜尔胶-丙烯酰胺接枝共聚物的助留助滤性能  

The Retention and Drainage Properties of Cationic Guar Gum-Acrylamide Graft Copolymer

作　　者：宋林林[1] 李友明[1] 万小芳[1] 王艳霞[1] 

机构地区：[1]华南理工大学造纸与污染控制国家工程研究中心,广州510640

出　　处：《纸和造纸》2007年第3期37-40,共4页Paper and Paper Making

摘　　要：研究低温(10℃)水溶液聚合法合成的阳离子瓜尔胶-丙烯酰胺接枝共聚物(CGG-g-PAM)对桉木漂白硫酸盐浆的助留助滤特性,结果表明:重均分子量为360万的CGG-g-PAM2共聚物具有最好的助留助滤效果,在PAC和CGG-g-PAM2的用量分别为0.4%及0.08%时,手抄纸的力学性能提高。CGG-g-PAM共聚物耐剪切性能优于CGG及阳离子聚丙烯酰胺(CPAM)。Cationic guar gum-acrylamide graft copolymer which was synthesized in aqueous solution at low temperature （10℃） was applied as retention and drainage aids in bleached eucalyptus kraft pulp suspension. It is showed that CGG-g-PAM whose molecular weight is 3.6 million has best effect. When the dosage of PAC and CGG-g-PAM2 is 0.4% and 0.08% respectively, the mechanic property of handsheets is improved. The copolymer has the better shear-resistance than CGG and cationic polymer （CPAM） used.

关 键 词：接枝共聚物 阳离子瓜尔胶 助留助滤 首程留着率 

分 类 号：TS727.2[轻工技术与工程—制浆造纸工程]