▎ 摘　　要

NOVELTY - An automobile sound insulation mat material with excellent sound insulation effect, comprises 10-60 pts. wt. copolymer resin, 40-80 pts. wt. inorganic nano fillers, 0.1-5 pts. wt. surface modifier, and 0.1-5 pts. wt. polar monomer graft polymer compatibilizer. USE - Sound insulation mat material used for automobile. ADVANTAGE - The sound insulation gasket material can improve the sound insulation function of the sound insulation gasket material, and has a significant effect on improving the overall NVH performance of the automobile. The mechanical properties of the sound insulation sheet is improved, and the smell is improved. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation of the automobile soundproof mat material with excellent soundproofing effect, which involves (1) premixing the inorganic nano filler and the surface modifier uniformly to obtain the premix A, and then making the premix A compatible with the copolymer resin and the polar monomer grafted polymer agent, pelletizing in a twin-screw extruder to obtain mixed materials, (2) extruding the mixed material in step (1) in an extruder to obtain an automobile soundproof gasket material with excellent sound insulation effect, (3) heating the sound insulation gasket material and the foamed layer to soften them, and then placing them in the forming mold in turn, and (4) pressurizing and passing water vapor to the mold, transferring to a hot press mold after the aeration is completed, and pressurizing to shape.