Method for preparing graphene electrothermal film based on flexible porous fiber material

A porous fiber and graphene technology, which is applied in the field of graphene electric heating film preparation, can solve the problems of affecting normal use, poor experience effect, unable to meet high performance and high reliability use, etc.

Active Publication Date: 2020-10-23
安徽宇航派蒙健康科技股份有限公司
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Problems solved by technology

[0003] However, the current graphene electrothermal film is generally prepared by graphene slurry or by chemical vapor deposition (CVD). The specific process is to attach the graphene conductive material to the surface of the insulating film, such as the surface of PET or PI insulating film, and finally Packaged with PET or PI, this kind of electric heating film mainly has the following problems in the application process of physiotherapy protective gear, heating clothing and other fields: First, the electric heating film is hard as a

Method used

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  • Method for preparing graphene electrothermal film based on flexible porous fiber material
  • Method for preparing graphene electrothermal film based on flexible porous fiber material

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Embodiment 1

[0040] Method for preparing graphene electric heating film based on flexible porous fiber material:

[0041] 1) Using LIG technology to prepare a three-dimensional graphene conductive film pattern on the surface of 10 micron thick polyimide porous fiber paper, and ensure that the surface is covered with a polyimide porous fiber paper bottom layer (about 2 microns thick) Not graphitized. LIG uses laser scanning equipment. The laser light source is a carbon dioxide laser with a wavelength of 10.6 microns, a power of 4.8W, and a pulse time of 20 microseconds.

[0042] 2) Rolling the graphene conductive film obtained in 1) with a roller pressing machine, the processing conditions are: the pressure is 0.6 MPa, and the speed is 1.5 m / min;

[0043] 3) The graphene conductive film obtained in 2), using 20 micron thick TPU hot melt adhesive as the adhesive layer, is hot pressed to the surface of the knitted fabric by hot pressing to form a knitted fabric / graphene composite structure. The hot...

Embodiment 2

[0047] Method for preparing graphene electric heating film based on flexible porous fiber material:

[0048] 1) Using LIG technology to prepare a three-dimensional graphene conductive film pattern on the surface of 10 micron thick polyimide porous fiber paper, and ensure that the surface is covered with a polyimide porous fiber paper bottom layer (about 2 microns thick) Not graphitized. LIG uses laser scanning equipment. The laser light source is a carbon dioxide laser with a wavelength of 10.6 microns, a power of 4.8W, and a pulse time of 20 microseconds.

[0049] 2) Rolling the graphene conductive film obtained in 1) with a roller pressing machine, the processing conditions are: the pressure is 0.6 MPa, and the speed is 1.5 m / min;

[0050] 3) In order to further improve the flexibility of the electric heating film, a laser cutting machine is used to cut the polyimide porous fiber paper whose surface is not graphitized on the graphene conductive film pattern;

[0051] 4) The graphen...

Embodiment 3

[0055] Method for preparing graphene electric heating film based on flexible porous fiber material:

[0056] 1) Using LIG technology to prepare a three-dimensional graphene conductive film pattern on the surface of 20 microns thick polyimide porous fiber paper, and ensure that the surface is covered with a polyimide porous fiber paper bottom layer (about 12 microns thick) with graphene film Not graphitized. LIG uses laser scanning equipment. The laser light source is a carbon dioxide laser with a wavelength of 10.6 microns, a power of 4.8W, and a pulse time of 20 microseconds.

[0057] 2) The graphene conductive film obtained in 1) is rolled by a roller press, and the treatment conditions are: the pressure is 0.6 MPa and the speed is 1.5 m / min;

[0058] 3) Using the graphene conductive film obtained in 2), heat-press a 20-micron thick TPU hot melt adhesive to the surface of the non-graphitized polyimide porous fiber paper by hot pressing to form TPU / polyimide porous Fiber paper / gra...

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Abstract

The invention provides a method for preparing a graphene electrothermal film based on a flexible porous fiber material. The preparation method comprises the following steps of: directly preparing a super-flexible self-supporting graphene conductive layer on the surface of a flexible porous material by adopting a laser-induced graphene method, then introducing a PI flexible conductive electrode, and finally performing super-flexible packaging with a textile fabric, thereby obtaining the super-flexible graphene electrothermal film.

Description

Technical field [0001] The invention relates to a preparation method of an ultra-flexible graphene electric heating film, in particular to a method for manufacturing a graphene electric heating film by using a laser induction method, and belongs to the field of preparation methods of a graphene electric heating film. Background technique [0002] Graphene is an emerging strategic material. In the process of industrial development, graphene electric heating film has developed rapidly, which is characterized by low manufacturing costs and relatively environmentally friendly production processes. In particular, the graphene electric heating film can emit far infrared rays that can achieve a good resonance absorption effect with the human body, and at the same time, it has the advantages of easy surface heating and fast heating speed. It has become a hot spot in the field of current electric heating film research. [0003] However, the current graphene electric heating film is generall...

Claims

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Application Information

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IPC IPC(8): C01B32/184
CPCC01B32/184H05B2203/017
Inventor 谭化兵潘智军
Owner 安徽宇航派蒙健康科技股份有限公司
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