▎ 摘　　要

NOVELTY - A composite material comprises amino acid aqueous solution, carbon nanotubes, carbon black, graphene and rubber latex. The amino acids are amino acids which can produce pi - pi interaction with carbon nanotubes. The mass ratio of amino acid aqueous solution, carbon nanotubes, carbon black and graphene is 0.1-10:1-30:0-50:0-20. USE - Composite material. ADVANTAGE - The composite material has excellent reinforcing performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of composite material, which involves preparing amino acid aqueous solution, adding carbon nanotubes, carbon black and graphene to the prepared amino acid aqueous solution, stirring, uniformly dispersing to obtain carbon nanotube amino acid dispersion, adding the dispersion to rubber latex at a speed of 500-5000 rpm in a high speed mixer, alternately mixing at a speed of 20-150 m/second, preferably 50-120 m/second, demulsifying, mixing to obtain demulsified material, squeezing the demulsified material in a crepe machine and drying at 70-80 degrees C.