摘要
采用无皂乳液聚合方法合成聚醋酸乙烯酯/马来酸/丙烯酸丁酯乳液。以透射电镜观察乳胶粒的表面形态并测量粒径,对乳胶粒的增长机理进行了分析。以转化率、吸水性、拉伸强度和乳液的稳定性为主要指标考查了共聚单体用量、pH等因素对乳液性能的影响。结果表明,马来酸占总单体量的3%,丙烯酸丁酯占8%,pH为6时共聚乳液具有良好的性能。
The copolymer of polyvinyl acetate/maleic acid/butyl acrylate was prepared by emulsifier-free emulsion process.Analysis method of TEM was used to characterize the particle size and the morphology and studied the particle growth mechanicm.The influence of the proportion of monomers and the pH value on conversion rate,water absorption, tensile strength and stability of the emulsion was studied.The results indicated that when the contents of maleic acid and butyl acrylate were 3% and 8% of amount of mixed monomers,respectively,and the pH value was of 6 the copolymer emulsion showed the best performance.
出处
《粘接》
CAS
2011年第9期57-59,共3页
Adhesion
关键词
无皂乳液聚合
醋酸乙烯酯
马来酸
丙烯酸丁酯
emulsifier-free emulsion polymerization
vinyl acetate （VAc）
maleic acid
butyl acrylate
