不同改性剂对ABS复合材料力学性能的影响

Influence of Different Modifiers on the Mechanical Properties of ABS Composites

通过在丙烯腈-丁二烯-苯乙烯共聚物(ABS)中添加不同的改性剂制备ABS复合材料。采用动态力学分析仪,扫描电子显微镜等分析了不同改性剂对ABS复合材料力学性能的影响。结果表明:与未改性的ABS相比,ABS/苯乙烯-马来酸酐共聚物(SMA)复合材料的拉伸强度为51.5 MPa,提高了6.8%;SMA作为相容剂提高了热塑性聚氨酯弹性体(TPU)粒子与ABS树脂之间的界面黏结强度,使得ABS/SMA/TPU复合材料的力学性能得以提高,其拉伸强度达到52.2 MPa,ABS/SMA/ABS高胶粉复合材料的冲击强度为29.3 kJ/m^2,提高了34.4%,综合力学性能较为理想。

ABS composites were prepared by adding different modifiers in acrylonitrile butadiene styrene copolymer（ABS）.The influence rules of mechanical property of different modifiers in ABS composites were analyzed by dynamic mechanical analysis,scanning electron microscope,and other testing technologies.The results show that comparing with unmodified ABS materials,the tensile strength of ABS/SMA composites is 51.2 MPa,increases by 6.8%;SMA as compatibilizer can improve the interfacial bonding strength between TPU and ABS,and the mechanical properties of ABS/SMA/TPU composites can be improved,and the tensile strength of is 52.2MPa.The impact strength of ABS/SMA/ABS high rubber composites is 29.3 kJ/m2,which increases by 34.4%,and the comprehensive mechanical properties of composites are ideal.