不同PP/EPDM共混物力学性能研究

Study of Mechanical Properties of Various PP/EPDM Blends

本文研究了不同种类的PP／EPDM共混物。结果表明，随EPDM含量增加，拉伸强度、拉伸弹性模量、弯曲强度、弯曲弹性模量均下降，但在含量30％附近时，冲击强度提高，冲击强度的变化与EPDM在PP中形态及分布有关。共混物的晶体结构对力学性能没有影响。

Various blends of PP with EPDM were studied in this paper. The results showed that the tensile strength, tensile modulus, flexural strength and flexural modulus decreased with the increasing of EPDM content, but the impact strength increased at about 30%EPDM content. The change of impact strength related to the morphology and distribution of EPDM in PP. ac crystalline structure of blends had no effect on mechanical properties.