柔软型湿强剂的合成及应用  

Synthesis and application of a softening wet-strengthening agent

作　　者：张昌辉[1] 常云虹[1] 谢瑜[1] 

机构地区：[1]陕西科技大学化学与化工学院,西安710021

出　　处：《中华纸业》2008年第12期50-53,共4页China Pulp & Paper Industry

基　　金：陕西省教育厅自然科学专项基金资助项目(05JK158)

摘　　要：叙述了二乙醇胺改性聚酰胺多胺环氧氯丙烷(PAE)湿强树脂的合成,分别讨论了中间体合成的影响因素和第二步反应的影响因素,并确定了湿强剂较佳的合成条件及应用条件,明显降低了产品有机氯的含量。研究表明,二乙醇胺改性PAE树脂湿强剂较佳的合成条件:n(DEA)/{n(DEA)+n(DETA)}=0.2,第二步反应温度为60℃,第二步反应时间60min,n(EPI)/n(Intermediate)为0.75;湿强剂浆料中最佳添加量为1.5%,此时纸张湿强度达35%,柔软度达0.687mN。This paper deals with the preparation of polyamide- polyamsne-epichlorohydrin（PAE） resin modified by diethanolamine used as wet-strengthening agent, discusses the influencing factors on the synthesis of intermediate and the second step, then determines the preferred synthesis condi- tion and application conditions under which organic chlorides in the products remarkably decreased. The investigation indicates that preferred synthesis condition for diethanolamine modified PAE resin are n （ DEA）/[n （ DEA） ＋n（DETA）]=0.2,secondary reaction temperature 60℃, secondary reaction time 60min, n （ EPI）/n（ Intermediate）= 0.75; the optimal dosage of wet-strengthening agent of 1.5% in pulp,with the paper wet strength being 35% and softness being 0.687mN.

关 键 词：聚酰胺多胺环氧氯丙烷 二乙醇胺 湿强剂 湿强度 柔软度 

分 类 号：TS727.2[轻工技术与工程—制浆造纸工程]