表面保护膜用水性丙烯酸酯压敏胶的研究  

Study on waterborne acrylate pressure sensitive adhesive for surface protective film

作　　者：张少云[1] 王勇[2] 黄秀萍[3] 杨思伟[3] 陈登龙[3,4] 

机构地区：[1]福建师范大学材料科学与工程学院,福建福州350007 [2]福建师范大学化学科学与工程学院,福建福州350007 [3]福建师范大学泉港石化研究院,福建泉港362800 [4]福建师范大学环境科学与工程学院,福建福州350007

出　　处：《中国胶粘剂》2013年第9期32-36,共5页China Adhesives

基　　金：福建师范大学横向科技项目(DH-620)

摘　　要：以丙烯酸丁酯(BA)为软单体、甲基丙烯酸甲酯(MMA)为硬单体、丙烯酸(AA)和丙烯酸-2-羟乙酯(HEA)为交联单体、V-20S为反应性阴离子型乳化剂和A-6830为非离子型乳化剂,采用预乳化半连续乳液聚合法合成了表面保护膜用丙烯酸酯PSA(压敏胶)。研究结果表明:以耐水性、剥离强度和持粘力为考核指标,采用单因素试验法优选出制备该PSA的最佳工艺条件为w(总乳化剂)=2%(相对于单体总质量而言)、w(V-20S)=60%(相对于总乳化剂质量而言)、w(复合交联单体)=5.5%(相对于单体总质量而言)和m(AA):m(HEA)=1:2.62;此时V-20S参与了单体的无规共聚反应,共聚物的玻璃化转变温度(T_g)大于理论设计值(-40℃);V-20S能明显提高乳胶膜的耐水性,优化交联单体含量能明显提高PSA的持粘力,同时PSA剥离后无残胶痕迹。With butyl acrylate （BA） as soft monomer, methyl methacrylate （MMA） as hard monomer, acrylic acid（AA） and 2-hydroxy ethyl acrylate（HEA） as crosslinking monomers,V-20S as reactive anionic emulsifier and A-6830 as non-ionic emulsifier,an acrylate PSA（pressure sensitive adhesive） for surface protective film was synthesized by pre-emulsification semi-continuous emulsion polymerization. The research results showed that with water resistance,peeling strength,and hold tack as evaluation indices,the optimal process conditions of preparing PSA were preferred by single-factor experiment method when mass fractions of total emulsifiers and composite crosslinking monomers were 2% and 5.5% respectively in total monomers,mass fraction of V-20S was 60% in total emulsifiers,and the same time,there was no PSA＇s trace after peeling.

关 键 词：保护膜 反应性乳化剂 丙烯酸酯 压敏胶 

分 类 号：TQ433.436[化学工程] TQ436-3