▎ 摘　　要

NOVELTY - Graphene-polyamide composite, where the graphene surface is modified with polyamide, is claimed. USE - Used as a graphene-polyamide composite. ADVANTAGE - The composite has tensile strength improved by 2-3 times and conductivity by 9-12 times with respect to polyamide; and its pyrolysis initiation temperature less than or equal to 420 degrees C (claimed), and thus has improved mechanical property, thermal stability and conductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for manufacturing the composite, comprising carrying out anionic ring-opening polymerization reaction of 4-20C aliphatic lactam monomer in presence of alkali metal catalyst and 4-20C aliphatic lactam monomer-substituted graphene as a polymerization initiator, where the graphene surface is modified with ring-opened functional group of 4-20C aliphatic lactam monomer.