TPU增韧PP共混材料的力学性能  

Mechanical Properties of TPU Toughened PP

作　　者：刘玉坤[1] 谭晓莉[1] 陈金周[1] 牛明军[1] 刘雪莹[1] 管兰芳[1] 李新法[1] 

机构地区：[1]郑州大学,郑州450052

出　　处：《包装工程》2007年第9期39-41,共3页Packaging Engineering

基　　金：河南省科技攻关项目资助(0424270011)

摘　　要：利用双螺杆熔融共混挤出方法制备了TPU(热塑性聚氨酯弹性体)增韧PP(聚丙烯)新材料。考察了两种聚酯型TPU(TPU1和TPU2)和两种增容剂[三元乙丙橡胶接枝马来酸酐(EPDM-g- MAH)和乙烯-辛烯共聚物接枝马来酸酐(POE-g-MAH)]对PP/TPU的力学行为的影响。结果表明,TPU2较TPU1能更有效的改善PP的缺口冲击强度,TPU1则使PP/TPU保持较高的强度和刚性保留率,且加入5质量份的TPU较为适宜;加入适量的EPDM-g-MAH较POE-g-MAH可以更有效地改善PP/TPU的韧性、强度和刚度。PP (polypropylene) Toughening with thermoplastic polyurethane (TPU) elastomers were prepared with co-rotating twin screws extruder using melting mixed method.It was investigated that the effects of kinds of polyester-typed TPUs and grafting MAH-typed compatibilizers on the mechanical properties of PP/TPUs.It was showed that PP can be more effectively toughened by blending with TPU2 than TPU1, while TPU1 can make PP/TPU higher level of tensile strength and elastic modulus than TPU1;and the im- provement in t...

关 键 词：TPU PP EPDM-G-MAH POE-G-MAH 增容 力学性能 

分 类 号：TB484.3[一般工业技术—包装工程]