作　　者： ; ; ; ;

机构地区： 四川大学高分子科学与工程学院

出　　处： 《中国塑料》 2003年第8期43-45,共3页

摘　　要： 加入超细改性无机刚性粒子提高三元乙丙橡胶 (EPDM )的硬度 ,再与聚丙烯 (PP)进行共混。研究了超细改性无机刚性粒子用量对EPDM硬度及流动性的影响 ,比较了PP与不同硬度EPDM的共混物在力学性能上的差异。结果表明 :随着EPDM硬度的增加 ,共混物不仅韧性提高 ,弯曲模量也大幅度上升。选择合适的硬度 ,可制得高抗冲高刚性的EPDM改性PP共混材料。 Modified EPDMs of different hardness were prepared by adding some ultra fine fillers into them, then blended with PP. Influences of loadings of ultra fine fillers on hardness and fluidity of the modified EPDM and mechanical properties of PP/modified EPDM were investigated. Results showed that as the hardness of modified EPDM increased the brittle-ductile transition moved to high rubber contents and the flexural modulus increased profoundly, however. By selecting proper hardness of modified EPDM, PP/modified EPDM with both high impact strength and high modulus could be obtained.

关 键 词： 高抗冲 高刚性 聚丙烯 三元乙丙橡胶

领　　域： [化学工程]