Grafted copolymer compound and preparation method and application thereof

A grafted copolymer compound is prepared from the following raw materials in parts by weight: 5-95 parts of unit grafted co-polymerized polyolefin resin, 5-95 parts of a unit grafted co-polymerized thermoplastic elastomer and 0-20 parts of a processing aid. According to the grafted copolymer compound provided by the invention, the advantages and properties of various unit grafted copolymers can beintegrated, so that the complementation among the components is realized, the defect of single property of the unit graft copolymers is overcome, and the effect that one plus one is greater than twois achieved. In addition, the invention further provides a preparation method of the grafted copolymer compound, the method is simple and convenient in process and low in production cost, the problemsthat in the multi-component graft co-polymerization process, the process control difficulty is large, and a large amount of gel is generated due to easy crosslinking are solved, and a reaction systemhas good stability and unif