新型丙烯酸酯乳液胶粘剂的应用研究

以丙烯酸乙酯(EA)和丙烯酸丁酯(BA)为软单体、甲基丙烯酸甲酯(MMA)为硬单体、甲基丙烯酸(MAA)和丙烯酸(AA)为功能单体,采用种子乳液聚合法制备出一种新型丙烯酸酯乳液胶粘剂。结果表明:当m(EA)∶m(BA)∶m(MMA)=19.2∶6.4∶6.4、m(MAA)∶m(AA)=2.00∶1、w(MAA+AA)=w(BA)=6%～8%以及经氨水中和后胶液的pH为7~8时,该胶粘剂具有良好的综合性能,其初粘强度大、干燥速率快、耐冷藏性能好、不起皱、不掉标且易清洗,完全满足啤酒瓶贴标用胶粘剂的使用要求。

Study on application of novel acrylate emulsion adhesive

With ethyl acrylate(EA) and butyl acrylate(BA) as soft monomers,methyl methacrylate(MMA) as hard monomer,methyl acrylic acid(MAA) and acrylic acid(AA) as functional monomers,a new acrylate emulsion adhesive was prepared by seed emulsion polymerization.The results showed that the adhesive had good combination property,and could fully meet application requirement of label adhesives for beer bottle because it had some strongpoints such as big initial bonding strength,quick dry speed,good refrigeration-resistance,not wrinkle,not fall label and easy cleanout when mass ratio of m(EA)∶m(BA)∶m(MMA) was 19.2∶6.4∶6.4,mass ratio of m(MAA)∶m(AA) was 2.00∶1,mass fractions of MAA/AA and BA were all 6%-8%,and pH in adhesive sample was 7-8 after neutralisation of ammonia.