以丙烯酸酯为原料,通过改进的溶液聚合工艺,合成了高性能耐高温丙烯酸酯压敏胶粘剂(PSA),考察了聚合工艺、丙烯酸(AA)含量、丙烯酸丁酯(BA)与丙烯酸2-乙基己酯(2-EHA)的质量配比以及固化剂的种类和用量等因素对PSA性能的影响.实验结果表明,聚合工艺(单体浓度和加料方式、反应温度、反应时间等)对PSA的综合性能有显著影响;在改进的聚合工艺条件下,当AA含量在3%,BA:2-EHA质量比为2,采用异氰酸酯固化剂(GH)固化,GH的最佳加入量为0.8%时,PSA的粘接性和耐高温性能优异.
参考文献
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