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研究动态硫化EPDM/PP热塑性弹性体相态结构及其力学行为.结果表明:动态硫化EPDM/PP共混物相态是EPDM橡胶以颗粒状分布在PP连续相中,这种相态结构一般不随橡塑比的变化而改变,但EPDM橡胶颗粒的形态变化显著.动态硫化EPDM/PP共混物,在橡塑比小于25/75,共混物具有类似橡胶应力-应变特征.“,”Morphology and mechanical behavior of dynamically vulcanized EPDM/PP blend were discussed. The results showed that dynamically vulcanized EPDM/PP blend had two - phase structure in which EPDM was dispersed as grains in continuous phase of PP and it didn' t vary with different ratios of rubber to plasties, but the shape of EPDM rubber particles in EPDM/PP blend changed obviously. As the ratio of rubber to plastics was lower than 25/75, the characteristic of stress - strain of EPDM/PP blend was similar to that of half - crystalline plastics which had a yield point, and the charactdristic of strs - strain of EPDM/PP blend was similar to that of rubber when the ratio of rubber to plastics was more than 25/75.