摘要
采用溶液聚合制备了溶剂型聚丙烯酸酯类压敏胶,讨论了改性单体的种类及用量、链转移剂的用量、引发剂的加入方式、聚合反应温度、胶液黏度和烘胶温度对压敏胶粘接性能的影响。实验表明,丙烯酸可以全面提高压敏胶的粘接性能,引发剂的加入方式能够有效调节聚合产物分子质量,链转移剂可以维持聚合反应的稳定性,适当的胶液黏度和烘胶温度将有利于提高压敏胶的粘接性能。
The solvent-based polyacrylate pressure sensitive adhesives (PSAs) were synthesized using solution copolymerization. The effects of the type and composition of comonomer, the chain-transfer agent content, the feeding manner of initiator, the polymerization temperature, the glue viscosity and the baking temperature on the adhesion properties of PSAs were studied. The results indicate that adhesion properties of PSAs are comprehensively improved by acrylic acid, the adjustment of molecular weight and its distribution of copolymer is realized mainly by different feeding manners of initiator, the stability of solution polymerization is maintained by chain-transfer agent, and the proper viscosity of glue and the proper baking temperature are significant to improve comprehensively adhesion properties of PSAs.
出处
《粘接》
CAS
2005年第3期13-15,共3页
Adhesion
关键词
聚丙烯酸酯
压敏胶
溶液聚合
polyacrylate
pressure sensitive adhesive (PSA)
solution polymerization
