AKD施胶增效剂的制备及应用  

Preparation and Application of Amphoteric Polymer as AKD Sizing Enhancement Agent

作　　者：郭伟杰[1] 周海骏[1] 邹俊[1] 

机构地区：[1]江苏科技大学材料科学与工程学院,江苏镇江212003

出　　处：《中国造纸》2008年第6期26-29,共4页China Pulp & Paper

基　　金：江苏省社会发展项目(BS2006034)

摘　　要：主要研究了以二甲基二烯丙基氯化铵(DADMAC)、不饱和有机酸M、有机胺类功能单体P为原料合成两性聚合物,该两性聚合物与AKD配合使用可大大提高施胶速率,降低AKD施胶滞后现象。最佳合成工艺:物料摩尔比为n(DADMAC):n(M):n(P)=4.5:4.5:1;引发温度60℃,引发剂用量为单体总量的0.73%,反应时间330min,产物黏度可达410mPa·s(25℃)。施胶增效剂的最佳用量为AKD乳液用量的8%,在相同条件下,浆内施胶纸样Cobb值下降70%,表面施胶纸样Cobb值下降81.5%,施胶效果明显提高。This study deals with an amphoteric polymer that is a polymerization reaction product of DADMAC, an unsaturated organic acid M and a functional monomer P. The use combining this amphoteric resin and AKD can increase the sizing efficiency and shorten the AKD aging time. The mole ratio of DADMAC：M：P. used in the polymerization reaction was about 4.5：4.5：1, the reaction temperature was 60℃, the dosage of the initiator was 0.73% of the total monomers amount. The viscosity of the final product was 410 mPa.S at 25℃ when polymerization reaction was carried out for 330 minutes. The optimal dosage of this amphoteric resin employed in AKD emulsion was 8%. The Cobb value decreased by 70% while this amphoteric resin was employed in internal sizing and by 81.5% in surface sizing.

关 键 词：施胶增效剂 二甲基二烯丙基氯化铵 两性树脂 AKD 

分 类 号：TS727.5[轻工技术与工程—制浆造纸工程] TQ314.253[化学工程—高聚物工业]