The effect on the toughening of polypropylene(PP) by styrene-ethyl en e propylene diblock copolymer(SEP) as well as EPDM was studied.

• 考察了苯乙烯-二元乙丙橡胶嵌段共聚物(SEP)和三元乙丙橡胶(EPDM)对聚丙烯(PP)的增韧作用。