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A controllable laser-induced graphene paper heater and its application

A graphene paper, laser-induced technology, applied in the direction of application, heating method, heating element material, etc., can solve the problems of low temperature and limited use, and achieve the effect of uniform heat distribution, light weight and flexible application mode

Active Publication Date: 2022-03-04
北京烯塔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the temperature that metal nanowire heaters can reach is low (the maximum temperature is about 200°C), and their applications are limited.

Method used

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  • A controllable laser-induced graphene paper heater and its application
  • A controllable laser-induced graphene paper heater and its application
  • A controllable laser-induced graphene paper heater and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Prepare a graphene paper heater and heat it with electricity:

[0069] (1) Polyimide paper base: Spread the cut polyimide paper evenly and fix it on the laser scanning table.

[0070] (2) Single-sided laser-induced restoration: Scan the polyimide paper on one side with a laser power of 8.75-18.125W, a scanning speed of 0.889m / s and a printing resolution of 500, and take it out from under the laser after completion , to obtain graphene paper.

[0071] (3) Electrode paste: paste copper foil tape on both ends of the graphene paper.

[0072] (4) Apply conductive silver paint: smear conductive silver paint at the seam of copper foil tape and graphene paper, and obtain graphene paper heater after drying under room temperature.

[0073] (5) Heating with electricity: First pad the two ends of the graphene paper heater to make it suspended in the air to avoid the influence of heat conduction on the experimental results. Connect the two wires of the DC power supply to the two el...

Embodiment 2

[0093] Fabrication of patterned graphene paper heaters:

[0094] (1) Polyimide paper base: Spread the cut polyimide paper evenly and fix it on the laser scanning table.

[0095] (2) Single-sided laser-induced reduction: The laser is scanned on one side of the polyimide paper with a power of 15W, a scanning speed of 0.889m / s and a printing resolution of 500. After completion, it is taken out from the laser to obtain patterned graphite. Graphite paper, patterned with the letters "BUAA" and swirls.

[0096] (3) Electrode paste: paste copper foil tape on both ends of the patterned graphene paper, wherein, for the patterned graphene paper with the letter "BUAA", specifically at the beginning and last letter of the first letter Copper foil tapes are pasted on the tail ends of the spiral lines respectively; for the patterned graphene paper with the pattern of spiral lines, copper foil tapes are respectively pasted on the head and tail ends of the spiral lines.

[0097] (4) Wire con...

Embodiment 3

[0102] Preparation of large-area graphene paper heaters:

[0103] (1) Polyimide paper base: Spread the cut polyimide paper evenly and fix it on the laser scanning table.

[0104] (2) Single-sided laser-induced reduction: Scan the polyimide paper on one side with a laser at a power of 15W, a scanning speed of 0.889m / s and a printing resolution of 500. After completion, take it out from the laser to obtain a size of 20cm *20cm square large area graphene paper.

[0105] (3) Electrode paste: paste copper foil tape on both ends of the large-area graphene paper.

[0106] (4) Apply conductive silver paint: smear conductive silver paint at the seam of copper foil tape and large-area graphene paper to obtain a large-area graphene paper heater.

[0107] (5) Heating with electricity: First pad the two ends of the graphene paper heater to make it suspended in the air to avoid the influence of heat conduction on the experimental results. Connect the positive and negative electrodes of t...

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Abstract

The invention provides a laser-induced graphene paper heater and its application, belonging to the technical field of heaters. In the present invention, the laser-induced graphene paper heater comprises graphene paper, electrodes are respectively pasted on the two ends of the graphene paper, and the joint between the electrode and the graphene paper is coated with conductive silver paint; and the graphene paper is induced and reduced by laser Polyimide paper is prepared. The heating temperature range of the graphene paper heater in the present invention is large, the heating efficiency is high, and the heating speed is fast. Further, the present invention obtains patterned graphene paper through one-time processing through laser digital customized design and manufacture, which facilitates further preparation of patterned graphene paper heaters; Realize temperature zone regulation. Therefore, the graphene paper heater of the present invention can be applied in wearable equipment, household heating, industrial heating equipment, and low-energy curing molding of thermosetting composite materials, etc., and has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of heaters, in particular to an adjustable laser-induced graphene paper heater and its application. Background technique [0002] Joule heat is the heat generated when current passes through a conductor. Electrothermal materials using Joule heat have been widely used in life and production, such as: electric heating, hyperthermia, deicing, curing thermosetting composite materials, etc. Indium tin oxide heaters are widely used in commercial products due to their high conductivity and transparency, but the brittleness of indium tin oxide prevents them from being used in flexible heaters. Metal nanowires also have high conductivity, transparency, and good flexibility, so they have become an alternative to indium tin oxide. However, the temperature that metal nanowire heaters can reach is relatively low (the highest temperature is about 200°C), and their applications are limited. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/14B29C35/02F24D13/02A41D13/005A61N5/06
CPCH05B3/14B29C35/02F24D13/024A41D13/0051A61N5/0625F24D2200/08A61N2005/0645A61N2005/0659A61N2005/0664
Inventor 罗斯达陈俊宇何梅洪王冠韬
Owner 北京烯塔科技有限公司
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