Heating film material and preparation method thereof

The invention provides a heating film material and a preparation method thereof, the heating film material comprises functionalized graphene and functionalized multi-walled carbon nanotubes, and hydrogen bonds formed by functional groups and an interwoven network structure formed by connecting the hydrogen bonds are arranged between the functionalized graphene and the functionalized multi-walled carbon nanotubes. The heating film material provided by the invention has good tensile strength. 本申请提供一种发热膜材料及其制备方法，发热膜材料官能团化石墨烯和官能团化多壁碳纳米管，所述官能团化石墨烯与所述官能团化多壁碳纳米管间含有由所述官能团形成的氢键，以及由所述氢键连接形成的交织网络结构。本申请提供的发热膜材料具备良好的抗拉强度。