阳离子互穿聚合物网络对纸张的增强作用  

Effect of Cationic Crosslinking Polyamide/Polyacrylate Sequential Interpenetrating Polymer Network on the Paper Strength

作　　者：李刚辉[1] 沈一丁[1] 费贵强 陈玉群[2] 

机构地区：[1]陕西科技大学化学与化工学院,陕西咸阳712081 [2]成都印钞公司,四川成都611130

出　　处：《中国造纸》2005年第4期13-16,共4页China Pulp & Paper

基　　金：国家自然科学基金项目"无皂微乳液聚合新技术及其在中性施胶和表面施胶中的应用"(50473049)资助项目。

摘　　要：以聚酰胺多胺环氧氯丙烷(PAE)为反应介质,N羟甲基丙烯酰胺为交联剂,丙烯酰胺、丙烯酸丁酯、甲基丙烯酰氧乙基三甲基氯化铵为单体,采用乳液聚合制备出阳离子交联聚酰胺/聚丙烯酸酯(PA)顺序互穿聚合物网络(IPN)。纸张增强应用实验表明,当PAE/PA从1∶0.5变化到1∶2.5时,纸张干拉力提高38.5%,纸张湿拉力下降10.2%,纸张湿拉力和干拉力之比(W/D)下降35.1%,纸张耐折度提高62.2%。与非IPN相比,IPN能够使纸张干拉力和耐折度分别提高7.2%和14.2%,湿拉力降低5.6%。With using polyaminamide epihalohydrin resin as reaction agent and N-hydroxymethyl acrylamide as crosslinker, cationic crosslinking polyamide/polyacrylate sequential interpenetrating polymer networks (IPNs) were prepared by the emulsion copolymerization of arylamide/butylacrylate/methacryloxyethyl trimethylammonium chloride. A potential buffer zone in the straw pulp was found by zeta potential determination when IPNs were added. When the mass ratio of PAE to crosslinking PA changed from 1:0.5 to 1:2.5, the paper dry tensile and folding strength increased 38.47% and 62.25%, while the wet tensile and the ratio of wet tensile to dry tensile (W/D) reduced 10.18% and 35.14% respectively. The paper dry tensile and folding strength increased 7.24% and 14.20%, while the wet tensile reduced 5.64% compared with the paper without adding IPNs.

关 键 词：纸张增强剂 顺序互穿聚合物网络 聚酰胺多胺环氧氯丙烷 阳离子聚丙烯酸酯 纸浆电位 

分 类 号：TS727.2[轻工技术与工程—制浆造纸工程]