挤出条件对POE-g-GMA增韧PC/ABS合金性能的影响  

Effect of Extrusion Conditions on Properties of POE-g-GMA Toughened PC/ABS Alloy

作　　者：申娟 孙兆懿 

机构地区：[1]北京航天凯恩化工科技有限公司,北京100074

出　　处：《工程塑料应用》2015年第11期56-58,共3页Engineering Plastics Application

摘　　要：通过熔融挤出法制备乙烯–辛烯共聚物接枝甲基丙烯酸缩水甘油酯(POE-g-GMA)后,以此作为增韧剂,通过双螺杆挤出机制备了POE-g-GMA增韧聚碳酸酯(PC)/丙烯腈–丁二烯–苯乙烯塑料(ABS)合金体系。通过确定物料配比、改变挤出成型工艺参数,使PC/ABS合金体系综合性能达到最优。确定引发剂过氧化二异丙苯(DCP),GMA与POE的最佳质量比为DCP∶GMA∶POE=0.75∶4.25∶100,POE-g-GMA∶(PC/ABS)=6∶100为基材,探讨了挤出工艺参数对PC/ABS合金综合性能的影响,寻找最优加工参数。结果表明,当挤出机螺杆温度设定为:230,225,215,215,210℃,螺杆转速为65 r/min时,POE-g-GMA接枝率最高,为0.92%。POE-g-GMA增韧PC/ABS合金最优的挤出工艺参数为:挤出温度:220,230,210,210,205℃;螺杆转速为75 r/min,此时合金的熔体流动速率达到26 g/(10 min),拉伸强度为56 MPa,其综合性能最优。Polyolefin elastomer grafted with glycidyl methacrylate（POE-g-GMA） was prepared by melt extrusion. With this toughening agent, toughened polycarbonate （PC） / acrylonitrile butadiene styrene plastic（ABS） alloy was prepared by a double screw extruder. By determining the ratio of the material and changing the extrusion molding process parameters, PC/ABS alloy system＇s properties can achieve the optimal. Identifying the best ratio of initiating agent dicumyl peroxide （DCP） / GMA/POE=0.75 / 4.25 / 100, POE-g-GMA ： PC/ABS=6 ： 100 for substrate, the influence of process parameters on the comprehensive performance of PC/ ABS alloy was investigated to find the optimal processing parameters. The results show that when the temperature of screw extruder is set to： 230,225,215,215,210℃, screw speed is 65r/ min, POE-g-GMA grafting rate is the highest, 0.92%. The optimal extrusi- on process parameters for POE-g-GMA toughening PC / ABS alloy extrusion are： temperature： 220,230,210,210,205℃ ; screw speed ： 75 r/min, melt flow rate reach 26 g/（10 min）, tensile strength is 56 MPa, its comprehensive performance is the best.

关 键 词：PC/ABS合金 挤出工艺参数 挤出温度 螺杆转速 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]