A graphene-based electric heating element, a flexible electric heating substrate, an electric heating wall warmer and a method of making the same

Abstract

The application discloses a graphene-based electric heating element, a flexible electric heating substrate, an electric heating wall warmer and a preparation method thereof. The graphene-based electric heating element comprises a glass fiber layer, a graphene coating layer printed on one side of the surface of the glass fiber layer, and an electrode arranged in the glass fiber layer. The graphene coating layer comprises graphene, a dispersing agent and a binder. The graphene coating layer is divided into three layers from bottom to top. The proportion of the first layer graphene and the binder is (4-6):(6-4). The proportion of the second layer graphene and the binder is (7-10):(3-0), and the content of the PU adhesive is not 0. The proportion of the third layer graphene and the binder is (0-3):(10-7). The electric heating wall warmer with the graphene-based electric heating element as a core component has better indexes, high thermal efficiency, higher comprehensive performance and stronger applicability. The electric heating wall warmer and an air source heat pump device are used in the same scene and complement each other.

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