▎ 摘　　要

NOVELTY - In-situ intercalation of graphene oxide benzoxazine nanocomposite resin comprises taking natural crystalline flake graphite as raw material, carrying out improved Hummers method to obtain graphite oxide; dispersing graphite oxide in organic solvent, subjecting to ultrasonic treatment to obtain oxidized graphite stripping solution; dissolving benzoxazine polymer in organic solvent; and carrying out in-situ intercalation layer solution polymerization of benzoxazine polymer solution, mixing graphene oxide stripping solution, vacuum degassing, and reacting. USE - Method for in-situ intercalation of graphene oxide benzoxazine nanocomposite resin (claimed) used for copper-clad plate, and friction material. ADVANTAGE - The resin has improved workability, and increased heat resistance and glass transition temperature. DETAILED DESCRIPTION - In-situ intercalation of graphene oxide benzoxazine nanocomposite resin comprises: (A) taking natural crystalline flake graphite as raw material, carrying out improved Hummers method to obtain oxidized graphite; (B) dispersing graphite oxide in organic solvent, subjecting to ultrasonic treatment to obtain oxidized graphite stripping solution; (C) dissolving benzoxazine polymer in organic solvent to obtain 10-25 wt.% benzoxazine polymer solution; and (D) carrying out in-situ intercalation layer solution polymerization of benzoxazine polymer solution, mixing graphene oxide stripping solution at ratio of 0.5-5.00, where oxazine pre-polymer is 95-99.5% of mixed solution, vacuum degassing at 80-100 degrees C for 1-2 hours, and reacting at 150-190 degrees C for 4-20 hours.