▎ 摘　　要

NOVELTY - Preparing CNTs-@r-fGS/polyvinylidene fluoride composite material comprises firstly preparing a graphene sheet through an electrochemical stripping graphite sheet method and modifying to obtain a functionalized graphene sheet (FGS) through mixed acid modification, then growing ZIF -67 crystal on the surface of the functionalized graphene sheet, carrying out high-temperature heat treatment, converting the ZIF -67 crystal into carbon nanotubes in situ, obtaining the graphene sheets with the surface-loaded carbon nanotubes after acid-washing and removal of unstable cobalt, blending and dispersing the graphene sheets with polyvinylidene fluoride and carrying out coating method. USE - The method is useful for preparing CNTs-@r-fGS/polyvinylidene fluoride composite material. ADVANTAGE - The method: reduces the contact thermal resistance between fillers; and improves the heat-conducting performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for CNTs-@r-fGS/polyvinylidene fluoride composite material prepared by the above mentioned method.