摘要
采用半连续种子乳液聚合工艺,将醋酸乙烯酯-丙烯酸丁酯-甲基丙烯酸进行三元共聚,对醋酸乙烯酯胶黏剂的耐寒性和耐水性进行改性,合成了一种新型卷烟用胶.对单体配比、乳化剂和引发剂的种类和用量以及聚合温度等因素对乳液性能的影响进行了研究.实验结果表明:当m(VAC)m(BA)m(MAA)=17.5 6.5 1,乳化剂占单体用量4%～5%(质量分数,下同),引发剂占单体用量0.3%～0.4%,聚合温度为72℃时所制取的三元共聚乳液综合性能较好,能满足高速卷烟胶的使用要求.
A new-style adhesive for cigarette was prepared by modifying the water tolerance and low temperature resistance of polyvinyl acetate（PVAC） emulsion,which was polymerized from vinyl acetate-butyl acrylate-methyl acrylic acid polymer emulsion by semi-continuous seeding emulsion polymerization.The influence of monomer ration,the kinds and amount of emulsifier and initiator,the reaction temperature on properties of emulsion were studied.The results showed that when the ration of vinyl acetate,butyl acrylate and methyl acrylic acid is 17.56.51;the amount of emulsifier and the amount of initiator are 4%—5% and 0.3%—0.4% of the monomer respectively and the polymerization temperature is about 72 ℃,the comprehensive property of copolymer emulsion is better and meet the application requirements of high-speed cigarette adhesive.
出处
《武汉工程大学学报》
CAS
2011年第9期26-29,33,共5页
Journal of Wuhan Institute of Technology
关键词
卷烟胶
醋酸乙烯酯
改性
共聚乳液
cigarette adhesive
vinyl acetate
modification
copolymer emulsion
