High-fluidity nylon toughening agent and preparation method thereof

The invention relates to the field of high polymer materials, and discloses a high-fluidity nylon toughening agent and a preparation method thereof. The nylon toughening agent is prepared from the following raw materials in parts by weight: 20 to 90 parts of a propenyl elastomer, 10 to 80 parts of a vinyl elastomer, 0.3 to 5 parts of a first grafting monomer, 0.1 to 5 parts of a second grafting monomer, 0.01 to 0.5 part of an initiator and 0.1 to 2 parts of a diluent. The preparation method of the nylon toughening agent comprises the following steps: mixing a propenyl elastomer, a vinyl elastomer, a first grafting monomer, a second grafting monomer, an initiator and a diluent, adding the mixture into an extruder, melting and plasticizing, reacting and extruding, granulating, cooling, and drying to obtain the high-fluidity nylon toughening agent. The nylon toughening agent disclosed by the invention has a good toughening effect and high flowability, can maintain the processing flowability of nylon products to