阳离子改性PVA/瓜尔胶复合增强剂的制备及其应用性能研究  

Preparation and Application of the Cationic Modified PVA/guar Gum Paper Strengthening Agent

作　　者：林亚辉 王玉珑 杨瑞[1] 陈方星 匡奕山 王林 陈哲庆 Lin Yahui;Wang Yulong;Yang Rui;Chen Fangxing;Kuang Yishan;Wang Lin;Chen Zheqing(School of Chemistry and Chemical Engineering,Changsha University of Science&Technology,Changsha,Hunan 410011,China;Sinolight Guotai Machinery Co.,Ltd.,Yueyang,Hunan 414006,China)

机构地区：[1]长沙理工大学化学化工学院,长沙410011 [2]中轻国泰机械有限公司,湖南岳阳414006

出　　处：《中华纸业》2025年第1期26-30,共5页China Pulp & Paper Industry

基　　金：湖南省自然科学基金项目(2023JJ30012);细胞化学湖南省重点实验室开放基金项目(2021xbhx03);电力与交通材料保护湖南省重点实验室开放基金项目。

摘　　要：利用2,3-环氧丙基三甲基氯化铵(GTMAC)醚化剂对聚乙烯醇(PVA,醇解度1799)进行阳离子改性,制得阳离子改性PVA;利用甘露聚糖酶生物降解阳离子瓜尔胶,制得低黏度阳离子瓜尔胶;将阳离子改性PVA与低黏度阳离子瓜尔胶按一定比例复配,制得复合增强剂,并将其用于提升纸张强度性能。结果表明,制备的阳离子改性PVA/瓜尔胶复合增强剂具有良好的稳定性能和增强性能;与空白样相比,当复合增强剂加入量为0.1%时,手抄片的抗张指数、耐破指数、耐折度分别提升了22.42%、16.27%、59.58%。The cationic modified PVA was prepared by grafting 2,3-epoxypropyltrimonium chloride(GTMAC)etherifying agent onto PVA(alcoholysis degree,1799),and the low-viscosity cationic guar gum was obtained through biodegrading cationic guar gum by mannanase.And then,the cationic modified PVA and the low-viscosity cationic guar gum were mixed in a certain proportion to prepare a paper strengthening agent.The results showed that the cationic modified PVA/guar gum agent has good stability and well strengthening performance.Compared with the blank sample,the tensile index,bursting index and folding endurance of the handsheet were increased by 22.42%,16.27%and 59.58%,respectively,as the amount of agent was 0.1%.

关 键 词：阳离子聚乙烯醇 瓜尔胶 增强剂 留着率 

分 类 号：TS727.2[轻工技术与工程—制浆造纸工程]