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Preparation method of graphene heating film

A technology of ene heating film and graphene, which is applied in the field of preparation of graphene heating film, can solve problems such as difficulty in ensuring the uniformity of graphene heating film, decline in product stability and reliability, and poor adhesion of graphene heating film. Achieve high pressure resistance, long service life and good wear resistance

Inactive Publication Date: 2020-06-26
FOSHAN SHUNDE SANBEI ELECTRONICS CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] In the preparation method of the double-heating layer graphene electric heating film in the above-mentioned technical scheme, the insulating and waterproof layers bonded to the upper and lower surfaces of the graphene heating layer are all without any treatment, and its adhesion to the graphene heating film is poor, and the product is stable. Both performance and reliability will be reduced, and the mixed solution is formed into a film by extrusion, so it is difficult to ensure the uniformity of the graphene heating film, which affects the uniformity of impedance distribution and generates parasitic capacitance, so the electrothermal conversion efficiency is low

Method used

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  • Preparation method of graphene heating film
  • Preparation method of graphene heating film

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Embodiment Construction

[0037] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described below in conjunction with the production process flow chart of graphene heating film and the structural diagram of graphene heating film.

[0038] Such as Figure 1-3 Shown, the preparation method of graphene heating film is characterized in that comprising the steps:

[0039] S1. Processing of PET film:

[0040] The PET film 1 used in the present invention is a modified PET film, that is, a general-purpose PET substrate is added with a toughening agent to make it have better toughness and bending strength. At the same time, corona treatment is first performed on both sides of the modified PET film 1, so that the Diane value on both sides reaches 54-56; then the surface is hard-coated; and then heat-setting and desulfurization are carried out at 180°C for 30 minutes Treatment; the treated PET film ...

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Abstract

The invention discloses a preparation method of a graphene heating film. The preparation method comprises the following steps: processing a PET film; preparing graphene conductive ink; manufacturing and processing a screen printing plate; coating a graphene strip, a silver electrode, an electrode connecting section and a graphene heating coating; thermally laminating a polymer insulating film; anddetecting the performance of the graphene heating film. Preparation method provided by the invention, the PET film serving as the base film is high in adhesive force, high in heating / cooling speed ofthe conductive ink, uniform in heat dissipation temperature, uniform in thickness distribution of the graphene heating layer, free of parasitic capacitance and high in electric-heat conversion efficiency, the far infrared normal total emissivity of the prepared graphene heating film reaches 89%, the electric-heat conversion rate reaches up to 99% or above, and energy and electricity are saved.

Description

technical field [0001] The invention relates to the technical field of graphene material application, in particular to a method for preparing a graphene heating film. Background technique [0002] The principle of graphene heating is based on the characteristics of single-layer graphene. First of all, graphene is the material with the highest thermal conductivity so far, and has very good thermal conductivity. Secondly, graphene has a charge carrier of 15000 cm / (v.s) at room temperature, which is ten times higher than that of silicon materials and more than twice that of indium antimonide, the material with the highest carrier mobility known so far. [0003] The graphene heating film needs to be energized and heated like the conventional heating film. When the electrodes at both ends of the graphene heating film are energized, the carbon molecules in the electric heating film will generate phonons, ions and electrons in the resistance. They rub and collide with each other t...

Claims

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Application Information

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IPC IPC(8): H05B3/14H05B3/34
CPCH05B3/14H05B3/34
Inventor 吴立刚叶德林胡柱东曾垂彬孔金波舒文武吴立柔
Owner FOSHAN SHUNDE SANBEI ELECTRONICS CO LTD
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