| abstract |
The invention discloses a polypropylene toughening additive. It is an ethylene polymer composition; the ethylene polymer composition includes component A1 and component A2, component A1 is a homopolymer of ethylene, component A2 is ethylene and at least two 4-10 carbon Atomic α-olefin copolymer, its weight-average molecular weight is higher than the weight-average molecular weight of component A1; The polypropylene toughening additive that the present invention obtains is used for polypropylene modification, and the composite material impact toughness that obtains is high, can be in It is widely used in automobile bumpers, automobile interior parts and building materials. |