POE-g-GMA对PC/ABS合金力学性能的影响

Effect of POE-g-GMA on Mechanical Properties of PC/ABS Alloy

通过熔融挤出法制备甲基丙烯酸缩水甘油酯(GMA)接枝聚烯烃弹性体(POE-g-GMA)后,又以此作为增韧剂,通过双螺杆挤出机制备了POE-g-GMA增韧PC/ABS合金。通过改变物料配比,确定引发剂过氧化二异丙苯(DCP),GMA与POE的最佳比例为DCP/GMA/POE=0.75/4.25/100。PC/ABS最优比例为PC∶ABS=7∶3。以此为基材,探讨了POE-g-GMA对该合金体系力学性能的影响。结果表明,POE-g-GMA在PC/ABS合金基体中均匀、稳定分散,可以实现对合金体系的增韧,当配比为POE-g-GMA∶PC/ABS=3∶100时,综合性能达到最优。

Glycidyl methacrylate（GMA） grafting polyolefin elastomer（POE-g-GMA） was prepared by melting process. As a flexibilizer, POE-g-GMA was used to toughen PC/ABS alloy by extrusion processing. By changing the ratio of raw materials, the optimal proportion ofDCP, GMA and POE is 0,75 / 4.25 / 100. The optimal proportion of PC/ABS is 7 ： 3. The influence of POE- g-GMA on the mechanical performance of PC/ABS alloy was studied. The results show that POE-g-GMA is dispersed uniformly in PC/ABS alloy matrix, and could be effective in toughening PC/ABS alloy. When the ratio ofPOE-g-GMA ： PC/ABS is 3 ： 100, PC/ABS alloy has the best comprehensive properties.