▎ 摘　　要

NOVELTY - Thermally conductive composite material comprises 40-70 %mass polyamide 6, 5-15 %mass elastomer and 15-45 %mass thermally conductive filler, where the thermally conductive filler comprises aluminum nitride, graphite, boron nitride and/or graphene. USE - The thermally conductive composite material is used in a virtual reality device. ADVANTAGE - The composite material has excellent thermal conductivity, high strength at lower content of thermally conductive filler and mechanical properties. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) A method for preparing the composite material, involving (i) vacuum drying polyamide 6, thermally conductive filler and elastomer respectively, (ii) fully stirring and mixing the dried polyamide 6 and the dried thermally conductive filler to obtain a mixture and melt blending the mixture in a twin-screw extruder, and (iii) adding the dried elastomer in the latter stage of plasticization and performing extrusion granulation to obtain the product; and (2) A virtual reality device comprising a housing and a functional device arranged inside the housing, where the functional device is used to generate a simulated environment, the material of the shell is the thermally conductive composite material; or a casing and a functional device arranged inside the casing, where the functional device comprises an optical module, arranged in the accommodating space of the casing, a bracket, which is located in front of the optical module and has a gap with the optical module, the material of the bracket is the thermally conductive composite material, a printed circuit board, arranged in front of the bracket, and the printed circuit board covers part of the bracket, a heat sink is located in front of the printed circuit board, and part of the heat sink is in contact with the printed circuit board, and part of the heat sink is in contact with the bracket.