Graphene heating slurry, graphene heating film prepared by using graphene heating slurry, and preparation method thereof

A graphene heating film and graphene technology, applied in the field of graphene heating film and its preparation, can solve problems such as power attenuation, and achieve the effects of reducing power control, low production cost, and improving serious power attenuation

Inactive Publication Date: 2019-06-28
广东墨睿科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the object of the present invention is to provide a graphene exothermic slurry, which has excellent thermal conductivity and electrical properties, and can effectively improve the prior art exothermic carbon paste The problem of power attenuation is prone to occur in the long-term use of the heating film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A graphene heating slurry, the graphene heating slurry comprises the following raw materials by weight: 25 parts of ball-milled graphene powder, 10 parts of solvent and 75 parts of heating carbon slurry.

[0023] The particle size of the ball-milled graphene powder is 8000 mesh.

[0024] The solvent is DMF.

[0025] The heating carbon paste is far-infrared electrothermal ink.

[0026] A graphene heating film, comprising a base film and the above-mentioned graphene heating slurry.

[0027] The base film is a square PET film.

[0028] A preparation method for a graphene heating film, comprising the following steps: A, taking a ball-milled graphene powder for subsequent use; B, taking a solvent and mixing it with the ball-milled graphene powder in step A to obtain a mixture; C, mixing the step The mixture obtained in B and the heating carbon slurry are fully stirred and mixed evenly to obtain a graphene heating slurry; D, the graphene heating slurry obtained in step C i...

Embodiment 2

[0033] The difference between this embodiment and the above-mentioned embodiment 1 is that the graphene exothermic slurry includes the following raw materials in parts by weight: 20 parts of ball-milled graphene powder, 8 parts of solvent and 70 parts of exothermic carbon paste.

[0034] The particle size of the ball-milled graphene powder is 4000 mesh.

[0035] The solvent is anti-white water.

[0036] The base film is a square PVC film.

[0037] In the step A, the preparation method of the ball-milled graphene powder is as follows: use flake graphite with a particle size of 4000 mesh as raw material, and process it in a ball mill at a speed of 250 rpm for 22 hours.

[0038] In the step C, the stirring speed is 600 rpm, and the time is 1 h.

[0039] In the step D, the coating thickness of the graphene heat generating slurry is 12 μm.

Embodiment 3

[0041] The difference between this embodiment and the above-mentioned embodiment 1 is that the graphene exothermic slurry includes the following raw materials in parts by weight: 15 parts of ball milled graphene powder, 12 parts of solvent and 60 parts of exothermic carbon paste.

[0042] The particle size of the ball-milled graphene powder is 5000 mesh.

[0043] The solvent is DMF.

[0044] The base film is a square EVA film.

[0045] In the step A, the preparation method of the ball-milled graphene powder is as follows: using flake graphite with a particle size of 5000 mesh as a raw material, and processing it in a ball mill at a speed of 300 rpm for 20 hours.

[0046] In the step C, the stirring speed is 700rpm, and the time is 3h.

[0047] In the step D, the coating thickness of the graphene heat generating slurry is 17 μm.

[0048] The performance comparison between the graphene heating film of the present invention and the commercially available graphene heating film ...

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Abstract

The invention relates to the technical field of heat generating materials and particularly relates to graphene heating slurry, a graphene heating film prepared by using the graphene heating slurry, and a preparation method thereof. The graphene heating slurry comprises the following raw materials including, by weight, 10 to 25 parts of ball-milled graphene powder, 5 to 10 parts of solvent and 60 to 75 parts of heating carbon paste. The graphene heating film includes a base film and the graphene heating slurry. The graphene heating slurry and the graphene heating film of the present invention have excellent thermal conductivity and electrical properties, and the problem that the power of the heating carbon paste is prone to attenuate in the long-term use of the heating film in the prior artcan be effectively improved.

Description

technical field [0001] The invention relates to the technical field of heating materials, in particular to a graphene heating slurry, a graphene heating film prepared by using the slurry and a preparation method thereof. Background technique [0002] Graphene is a brand-new heat conduction and heat dissipation material with unique grain orientation and uniform heat conduction in two directions. The lamellar structure can be well adapted to any surface, shielding heat sources and components while improving consumer electronics products. performance. While the product dissipates heat evenly, it also provides thermal isolation in terms of thickness. [0003] Graphene has excellent properties in many aspects, so it has attracted people's attention since its discovery. It is considered to be the thinnest and strongest material known, with extremely large field effects and extremely high carrier mobility, and its transportable current density is 6 orders of magnitude higher than...

Claims

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Application Information

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IPC IPC(8): H05B3/14H05B3/20
Inventor 蔡金明赵蓝蔚蔡晓明侯元捷赵恒
Owner 广东墨睿科技有限公司
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