▎ 摘　　要

NOVELTY - High-strength and high-thermal-conductivity nylon composite material comprises 100 pts. wt. nylon resin, 5-30 pts. wt. carbon fiber, 10-30 pts. wt. thermally conductive filler, 0.1-5 pts. wt. dispersant and 0.1-5 pts. wt. antioxidant. The nylon resin comprises 5-30 wt.% graphene nylon masterbatch and 70-95 wt.% pure nylon resin. The graphene nylon masterbatch is prepared from caprolactam by monomer pouring nylon polymerization method, where the graphene content is 1-5%. The pure nylon resin is chosen polyamide 6, polyamide 66, polyamide 46, and/or polyamide 1010. The graphene comprises single-layer graphene or multi-layer graphene, where the number of multi-layer graphene layers is less than 10. The surface of the carbon fiber is grafted with carbon nanotubes. USE - As high-strength and high-thermal-conductivity nylon composite material. ADVANTAGE - The method improves the thermal conductivity of the composite material with a low content filler, improves the overall mechanical properties of the material, improves the dimensional stability is, and reduces the water absorption rate of nylon. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the high-strength and high-thermal-conductivity nylon composite material, involving drying nylon resin, carbon fiber, thermal conductive filler, dispersant and antioxidant at 85 degrees C for 12 hours in a vacuum, adding to twin-screw extruder based on the formulation, passing through extrusion blending, pelletizing and injection molding to obtain the product, where the temperature range of twin screw extruder is 260-280 degrees C.