▎ 摘　　要

NOVELTY - Preparing continuous fiber reinforced aromatic polyimide 3D printing thermal conductive composite material, comprises (i) dissolving aromatic aldehyde and aromatic amine in aprotic solvent, stirring and prepolymerizing at 30-90℃ for 5-60 minutes, adding thermally conductive filler and dispersing evenly for 5-30 minutes to obtain prepolymer/thermally conductive filler mixture solution, (ii) impregnating the continuous fiber filament or tape in the prepolymer/thermally conductive filler mixture solution, adjusting the glue content and ribbon shape through the glue extrusion mechanism, removing the solvent through the heat flow channel, completely curing the aromatic polyimide resin, adjust the cross-sectional shape of the consumable through the shaping mechanism, and winding after cooling to obtain 3D printing heat-conducting consumables, and (iii) using the 3D printing heat-conducting consumable, performing printing by 3D printing technology to obtain final product. USE - The method is useful for preparing continuous fiber reinforced aromatic polyimide 3D printing thermal conductive composite material. ADVANTAGE - The continuous fiber reinforced aromatic polyimide 3D printing thermal conductive composite material has excellent thermal conductivity, mechanical properties, heat resistance, and chemical resistance, and capable of degradation and recycling. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for continuous fiber reinforced aromatic polyimide 3D printing thermal conductive composite material obtained by above method, composed of thermally conductive continuous fiber filaments or tapes, thermally conductive filler and intrinsically thermally conductive aromatic polyimide resin matrix i.e. N-benzylideneaniline comound of formula (I), the volume percentage of continuous fiber filaments or tapes in the composite material is 10-75 %, the content of thermally conductive filler is 5-30 %, and the content of matrix is 25-85 %. R1and R2= aromatic structures containing benzene rings.