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以丙烯酸丁酯(BA)为软单体、醋酸乙烯酯(VAc)为硬单体、甲基丙烯酸缩水甘油酯(GMA)为自交联单体和丙烯酸(AA)为功能单体,采用预乳化半连续乳液聚合法制备了自交联丙烯酸酯乳液型PSA(压敏胶),并探讨了软/硬单体质量比、引发剂掺量、乳化剂掺量和自交联单体掺量等对PSA粘接性能的影响。研究结果表明:随着GMA掺量的增加,凝胶含量逐渐增大;当m(BA)∶m(VAc)=85∶15、w(AA)=2%、w(引发剂)=0.9%、w(乳化剂)=0.8%和w(GMA)=6%(均相对于软硬单体总质量而言)时,制得的PSA具有相对最好的粘接性能和耐高温性能。
Using butyl acrylate (BA) as a soft monomer, vinyl acetate (VAc) as a hard monomer, glycidyl methacrylate (GMA) as a self-crosslinking monomer and acrylic acid (AA) as functional monomers, Self-crosslinking acrylate emulsion type PSA (pressure-sensitive adhesive) was prepared by emulsion semi-continuous emulsion polymerization. The effects of soft / hard monomer weight ratio, initiator content, emulsifier content and self-crosslinking monomer content Such as PSA adhesive properties. The results show that the gel content increases with the increase of the GMA content. When m (VA) = 85:15, w (AA) = 2% and w (initiator) = 0.9% , W (emulsifier) = 0.8% and w (GMA) = 6% (both relative to the total mass of the soft and hard monomers), the PSA obtained has the best adhesion and high temperature resistance properties.