链转移剂和交联剂对丙烯酸酯乳液压敏胶性能的影响  

Influence of Chain Transfer Agent and Cross-Linker on the Properties of Water-Based Acrylic Pressure-Sensitive Adhesives

作　　者：王荣[1] 傅和青[1] 

机构地区：[1]华南理工大学化学与化工学院,广东广州510640

出　　处：《高分子材料科学与工程》2013年第8期121-125,共5页Polymer Materials Science & Engineering

基　　金：省部产学研结合项目(2011B090400337);中山市产学研结合项目(2010cxy009)资助

摘　　要：文中主要探讨链转移剂(CTA)十二烷基硫醇(NDM)和内交联剂N-羟甲基丙烯酰胺(N-MAM)的加入量对压敏胶(PSA)乳液性能的影响。聚合过程中丙烯酸(AA)与N-MAM对乳液性能的影响类似,当CTA的量不变时,持粘力随交联剂量的增加而变大,而180°剥离强度和初粘力先增大后减小;当N-MAM的量不变时,持粘力随CTA量增加而减小,180°剥离强度和初粘力则变大。综合考虑CTA的质量分数为0.06%,N-MAM的质量分数为2%时,PSA的粘接性能达到一个最佳平衡,PSA的综合性能最优。The effects of the content of chain transfer agent（CTA） N-dodecyl mercaptan（NDM） and inner cross-linking agent N-methylol acrylamide（N-MAM） on the properties of acrylic pressure-sensitive adhesives were discussed.In the polymerization process,acrylic acid（AA） and N-MAM have the similar impact on the properties of the emulsion.At a constant CTA content,the shear force of the emulsion increases with the increasing of N-MAM content,180° peel strength and tack force increase first,then decrease.At a constant cross-linker content,shear force decreases,180°peel strengths and tack force increases with the increasing of CTA content.When the mass fraction of CTA and N-MAM are 0.06% and 2% respectively,PSAs have good integrative performances.

关 键 词：丙烯酸酯 压敏胶 链转移剂 交联剂 

分 类 号：TQ436.3[化学工程]