聚丙烯增韧改性的研究进展

Research Progress on Toughening Modification of Polypropylene

以多相共聚工艺制备的聚丙烯高抗冲釜内合金能较好地解决聚丙烯的增韧改性问题,但由于技术尚不成熟,以熔融共混为代表的传统增韧模式依然占据主导位置。在使用弹性体增韧聚丙烯时,聚烯烃弹性体可以实现比三元乙丙橡胶更好的效果,功能化石墨烯/二氧化硅协同使用则可在很少的用量下实现增韧聚丙烯的目的。

Polypropylene high-impact-resistance in-kettle alloy prepared by multiphase copolymerization process can solve the problem of toughening modifcation of polypropylene well. However, due to the immature technology, the traditional toughening mode represented by melt blending still occupies a dominant position. When the elastomer is used to toughen polypropylene, the polyolefn elastomer can achieve better effect than ethylene propylene diene monomer, and the purpose of toughening polypropylene can be achieved in a small amount when the functionalized graphene/silicon dioxide is used together.