Phase change graphene heating film and preparation method thereof

The invention provides a phase change graphene heating film and a preparation method thereof, the phase change graphene heating film comprises a heating layer, and the heating layer is prepared from graphene, a polyvinylidene fluoride-hexafluoropropylene copolymer and a phase change material. According to the invention, the polyvinylidene fluoride-hexafluoropropylene copolymer is added into the heating layer, so that the phase-change graphene heating film which is high in mechanical strength and meets the machine washing requirements of intelligent wearable clothing is provided. 本发明提供相变石墨烯发热膜及其制备方法，相变石墨烯发热膜包括发热层，所述发热层的制备材料包括石墨烯墨烯、聚偏氟乙烯-六氟丙烯共聚物和相变材料。本发明通过在发热层中添加聚偏氟乙烯-六氟丙烯共聚物，提供了一种力学强度高，满足智能可穿戴服装机洗要求的相变石墨烯发热膜。