▎ 摘　　要

NOVELTY - Graphene-based modified composite material comprises 5-15 pts. wt. single-layer graphene powder, 10-50 pts. wt. carbon nanotubes, 10-20 pts. wt. hydrogen-boron nitride material, 30-80 pts. wt. urea, 3-8 pts. wt. zinc oxide, 5-10 pts. wt. liquid rubber, 30-50 pts. wt. thermoplastic resin, 0.1-0.2 pt. wt. initiator and 3-10 pts. wt. MXene, where the modified composite material is prepared by stripping and uniformly mixing MXene material, hydrogen-boron nitride material, single-layer graphene powder and urea molecule under condition of plasma ball milling to obtain composite filler, and dispersing composite filler in carbon nanotubes for modification of single-layer graphene powder and carbon nanotubes, after uniformly mixing, adding zinc oxide for ionization reaction, adding liquid rubber and uniformly mixing at high speed, adding initiator, initiating copolymerization reaction, and performing cross-linking with liquid rubber, and adding thermoplastic resin. USE - As graphene-based modified composite material. ADVANTAGE - The composite material modifies the surface of two-dimensional materials to obtain carbon nanomaterials with excellent strengthening and toughening effect. DETAILED DESCRIPTION - Graphene-based modified composite material comprises 5-15 pts. wt. single-layer graphene powder, 10-50 pts. wt. carbon nanotubes, 10-20 pts. wt. hydrogen-boron nitride material, 30-80 pts. wt. urea, 3-8 pts. wt. zinc oxide, 5-10 pts. wt. liquid rubber, 30-50 pts. wt. thermoplastic resin, 0.1-0.2 pt. wt. initiator and 3-10 pts. wt. MXene, where the MXene material comprises electromagnetic shielding, a heat conducting and conducting charge, the hydrogen-boron nitride material has functions of insulating, isolating MXene and graphene nanotubes, and conducting heat, the urea molecule is ball-grinding agent, and modifying surface of two-dimensional material, and the modified composite material is prepared by stripping and uniformly mixing MXene material, hydrogen-boron nitride material, single-layer graphene powder and urea molecule under condition of plasma ball milling to obtain composite filler, and dispersing composite filler in carbon nanotubes for modification of single-layer graphene powder and carbon nanotubes, after uniformly mixing, adding zinc oxide for ionization reaction, adding liquid rubber and uniformly mixing at high speed, adding initiator, initiating copolymerization reaction, and performing cross-linking with liquid rubber, and adding thermoplastic resin to obtain graphene-based modified composite material.