Graphene heating film, graphene heating sheet and preparation method thereof

A technology of graphene heating sheet and ene heating film, which is applied in the field of graphene, can solve the problems that limit the wide application of graphene heating sheets, short service life, and inability to fold, and achieve low cost, fast heating speed, and uniform heating Effect

Pending Publication Date: 2020-09-29
佛山市中技烯米新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of graphene in heating sheets has problems such as intolerance to folding, short service life, and high cost, which greatly limits the wide application of graphene heating sheets

Method used

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  • Graphene heating film, graphene heating sheet and preparation method thereof
  • Graphene heating film, graphene heating sheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as Figure 1~2 As shown, the present embodiment 1 provides a graphene heating sheet and a preparation method thereof, and the preparation method comprises:

[0026] Add the binder SBR and the dispersant CMC to the solvent, stir, and disperse evenly, then add the tubular carbon material and the sheet-like graphene material, the mass ratio of the tubular carbon material to the sheet-like graphene material is 1:5, stir, Obtain graphene slurry; Wherein, the length of tubular carbon material is 100~200um, the D of tubular carbon material 50 10-30um, the graphene material is single-layer graphene; the weight ratio of binder: dispersant: tubular carbon material and flake graphene material is 3:1:100;

[0027] The graphene slurry is coated on both sides of an aramid fiber layer 20 by coating, and the coating amount of each layer is 0.2ml / cm 2 ;

[0028] drying the solvent, and forming the graphene heating film 10 from the graphene slurry;

[0029] A copper conductor 30...

Embodiment 2

[0032] Add the binder SBR and the dispersant CMC to the solvent, stir, and disperse evenly, then add the tubular carbon material and the sheet-like graphene material, the mass ratio of the tubular carbon material to the sheet-like graphene material is 2:3, stir, Obtain graphene slurry; Wherein, the length of tubular carbon material is 100~200um, the D of tubular carbon material 50 10-30um, the graphene material is single-layer graphene; the weight ratio of binder: dispersant: tubular carbon material and flake graphene material is 5:3:100;

[0033] The graphene slurry is coated on both sides of an aramid fiber layer 20 by coating, and the coating amount of each layer is 1ml / cm 2 ;

[0034] drying the solvent, and forming the graphene heating film 10 from the graphene slurry;

[0035] A copper conductor 30 and a power supply line 60 are provided, the copper conductor 30 is a printed copper layer, which is electrically connected with the graphene heating film 10 and is electric...

Embodiment 3

[0038] Add the binder SBR and the dispersant CMC to the solvent, stir, and disperse evenly, then add the tubular carbon material and the sheet-like graphene material, the mass ratio of the tubular carbon material to the sheet-like graphene material is 5:1, stir, Obtain graphene slurry; Wherein, the length of tubular carbon material is 100~200um, the D of tubular carbon material 5010-30um, the graphene material is single-layer graphene; the weight ratio of binder: dispersant: tubular carbon material and flake graphene material is 4:2:100;

[0039] The graphene slurry is coated on both sides of an aramid fiber layer 20 by coating, and the coating amount of each layer is 0.4ml / cm 2 ;

[0040] drying the solvent, and forming the graphene heating film 10 from the graphene slurry;

[0041] A copper conductor 30 and a power supply line 60 are provided, the copper conductor 30 is a printed copper layer, which is electrically connected with the graphene heating film 10 and is electri...

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Abstract

The invention discloses a graphene heating sheet and a graphene heating film thereof, the graphene heating film comprises tubular carbon materials and sheet-shaped graphene materials, and the tubularcarbon materials and the sheet-shaped graphene materials are uniformly distributed, wherein the uniformly distributed sheet-shaped graphene materials realize rapid electric connection at least in thehorizontal direction, the tubular carbon materials are uniformly distributed among the sheet-shaped graphene materials, and each layer of the sheet-shaped graphene materials is connected at least in the thickness direction, so that electric energy can be instantly conducted in the three-dimensional direction, i.e., each position of the graphene heating film; furthermore, under the condition of electrification, the graphene heating film can immediately excite the resonance effect between carbon atoms, phonon oscillation is generated, far infrared rays are immediately released, the electric energy is instantly converted into heat energy, and a heated substance can be rapidly heated under the action of atom resonance and the far infrared rays. The invention also provides a preparation methodof the graphene heating film.

Description

technical field [0001] The invention belongs to the technical field of graphene, and in particular relates to a graphene heating film, a graphene heating sheet and a preparation method thereof. Background technique [0002] Graphene and graphite powder are similar to one of the isomers of carbon. They both have excellent electrical conductivity. Conductors with good electrical conductivity generally have very good thermal conductivity. Increasing the current passing through them will generate a lot of heat. Graphene With excellent optical, electrical, and mechanical properties, it has important application prospects in materials science, micro-nano processing, energy, biomedicine, and drug delivery, and is considered to be a revolutionary material in the future. [0003] Graphite paper composed of graphene flakes has many pores, so graphite paper is very brittle. However, functionalized graphene obtained through oxidation, and then graphite paper made from functionalized gra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/14H05B3/34
CPCH05B3/14H05B3/34
Inventor 刘福海
Owner 佛山市中技烯米新材料有限公司
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