▎ 摘　　要

NOVELTY - Fluorinated graphene/cast nylon composite material comprises fluorinated graphene, caprolactam monomer, catalyst, initiator and aprotic polar solvent. The mass ratio of the fluorinated graphene and the caprolactam monomer is 0.5-5:1. The mass ratio of the catalyst to the fluorinated graphene is 1-5:1. The initiator and the fluorinated graphene mass ratio of 1-5:1. The liquid to solid ratio of the aprotic solvent to the fluorinated graphene is 2-10:1. USE - Fluorinated graphene/cast nylon composite material used for producing accessories of automobiles and heavy machinery and making bearing wheels or bearing seats (claimed). ADVANTAGE - The fluorinated graphene/cast nylon composite material is impact proof, has excellent performance, improves the tensile strength, wear resistance and toughness, and suitable for industrialization. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a method for preparing the fluorinated graphene, which involves adding 10g graphite powder to 250mlof 64% sulfuric acid in ice bath, stirring, adding 50g potassium permanganate powder at 10-15 degrees C for 2 hours, heating to 35 degrees C to obtain solution; adding 800ml deionized water, heating to 80 degrees C for 30 minutes; cooling to room temperature, and freeze drying to obtain graphene oxide; weighing 20g graphene oxide in a reaction vessel, autoclaving, and passing into 80-100KPa; heating to 180-200 degrees C to obtain graphene fluoride; and (2) a method for preparing the fluorinated graphene/MC nylon composite, which involves weighing graphene fluoride, adding to a non-polar solvent, mixing through high shear mixer at 18000-20000 revolutions per minute for 0.5-1 hour to obtain stable fluorinated graphene dispersion solution; placing 50-90% caprolactam monomer placed in a reactor A and 10-50% caprolactam monomer in reactor B; adding luorinated graphene dispersion solution dropwise to a reactor equipped with caprolactam monomer A, stirring at 400-800 revolutions per minute, heating at 100-120 degrees C, adding sodium hydroxide solution, heating at 130-140 degrees C at 0.1MPa; mixing the materials obtained in kettle A and kettle B, pouring mixture into a mold at 150-180 degrees C for polymerization for 50-80 minutes to continue the thermal insulation reaction for 10-30 minutes; and cooling naturally to obtain fianl product.