▎ 摘　　要

NOVELTY - Preparation of a low dielectric constant polymer/fluorinated graphene composite material comprises mixing graphene or its derivative in a reactor, introducing fluorine gas at 10-100 KPa at room temperature, heating to 150-300 degrees C, heat-preserving for 0.5-4 hours, and cooling to room temperature to obtain a fluorinated graphene; dispersing fluorinated graphene by mixing with 0.3-5 mass% polyamide or epoxy resin solution; and pouring the mix solution in a mold, vacuumizing for 0.5-5 hours at 40-90 degrees C, initial curing at 100-160 degrees C for 0.5-5 hours, and heating to 170-350 degrees C for 0.5-5 hours. USE - Method for the preparation of a low dielectric constant polymer/fluorinated graphene composite material (claimed). ADVANTAGE - The method is simple and inexpensive, and has improved mechanical property and heat stability. DETAILED DESCRIPTION - Preparation of a low dielectric constant polymer/fluorinated graphene composite material comprises: (A) mixing graphene or its derivative in a reactor, introducing fluorine gas in the reactor at 10-100 KPa at room temperature and inert atmosphere, heating to 150-300 degrees C, heat-preserving for 0.5-4 hours, and cooling to room temperature to obtain a fluorinated graphene; (B) dispersing fluorinated graphene by mixing with 0.3-5 mass% polyamide or epoxy resin solution; and (C) pouring the mix solution in a mold, vacuumizing for 0.5-5 hours to remove solvent at 40-90 degrees C, initial curing at 100-160 degrees C for 0.5-5 hours, and heating to 170-350 degrees C for 0.5-5 hours.