Electrothermal film containing graphene

Abstract

The invention provides an electrothermal film containing graphene. The electrothermal film comprises a base layer, a first heating layer located on the base layer, a second heating layer located on the first heating layer and an insulation protection layer located on the second heating layer. The first heating layer comprises a first conductive silver paste part and a plurality of first graphene parts arranged on the first conductive silver paste part at intervals, and the second heating layer comprises a second conductive silver paste part and a plurality of second graphene parts arranged on the second conductive silver paste part at intervals. According to the graphene-containing electrothermal film, the electrothermal film has good heat conduction performances, the temperature can be prevented from being rapidly dissipated, and the uniform temperature of each part of the electrothermal film can be ensured.

Description

technical field [0001] The invention relates to the technical field of electrothermal film, and more specifically relates to a graphene-containing electrothermal film. Background technique [0002] Graphene is a honeycomb planar film formed by sp2 hybridization of carbon atoms, and it is a quasi-two-dimensional material with a thickness of only one atomic layer. As an emerging material, graphene is widely used in various fields such as life, industry and agriculture, and medical treatment because of its super-strong electrical conductivity, thermal conductivity, light transmittance, and flexibility. As a heating material with unlimited potential, electric heating film is widely used in living fields such as building heating, heating floors, far-infrared health care rooms, as well as industrial fields such as paint booths and drying rooms. In recent years, graphene has been applied to electric heating films to obtain graphene electric heating films. A typical graphene electr...

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Problems solved by technology

Among them, the heating layer only contains graphene, which makes the graphene electrothermal film have excellent heating rate, high thermal conductivity and rapid heat dissipation ability, almost no thermal inertia, and can quickly transfer heat to other materials; but because of graphene electrothermal Due to the ultra-fast heating rate, high thermal conductivity and rapid heat dissipation of the film, the phenomenon of rapid temperature rise and rapid cooling after power failure will occur during use, and at the same time, the temperature of the heating film will be uneven, which is to a large extent Limits the scope of application of graphene electrothermal film

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