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A kind of graphene electric heating plate and preparation method thereof

A graphene and electric heating plate technology, applied in the direction of electric heating devices, ohmic resistance heating, electrical components, etc., can solve the problems of low temperature uniformity of graphene heating film, prone to hot spots, poor stability of batch volume resistivity, etc. Achieve the effects of increasing heating speed and heat dissipation efficiency, improving waterproof performance, and excellent adhesion

Active Publication Date: 2022-01-18
山东泰安亿美达能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The graphene heating film prepared by this method has disadvantages such as low temperature uniformity, hot spots at the electrodes, and poor stability of batch volume resistivity.

Method used

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  • A kind of graphene electric heating plate and preparation method thereof
  • A kind of graphene electric heating plate and preparation method thereof
  • A kind of graphene electric heating plate and preparation method thereof

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preparation example Construction

[0030] The present invention also provides a kind of preparation method of described graphene electric heating plate, comprises the following steps:

[0031] (1) Mix polyurethane resin, epoxy resin and graphene evenly to form a mixed emulsion, then add a curing agent and mix evenly, then put the heating wire into the mixed emulsion, and place it at room temperature for 2 to 5 hours to obtain a thermally conductive Substrate;

[0032] (2) Using the above-mentioned heat-conducting substrate as the base, using the composite target of metal and polymethacrylate as the target, and using the composite gas of nitrogen and hydrogen as the carrier gas, sputter-deposit the graphene electric heating layer on the heat-conducting substrate.

[0033] Under optimal conditions, the present invention also modifies the polyurethane resin. The modification process is as follows: uniformly mix the polyurethane resin and trimethylolpropane monoallyl ether in water, and then heat-retain and react a...

Embodiment 1

[0045] (1) Mix polyurethane resin HKOL-1050 and trimethylolpropane monoallyl ether in water at a weight ratio of 1:0.02, and then heat-react at 75°C for 1 hour to obtain a modified polyurethane resin;

[0046] Mix the above-mentioned modified polyurethane resin, epoxy resin CYD-128 (purchased from Jining Hongming Chemical Reagent Co., Ltd.) and graphene according to the weight ratio of 50:40:10 to form a mixed emulsion, then add triethylamine and mix evenly, Then put the heating wire into the mixed emulsion, and place it at room temperature for 3.5 hours to obtain a thermally conductive substrate;

[0047] (2) With the above-mentioned thermally conductive substrate as the base, a composite target of iron, zinc and polymethacrylate as the target (the weight ratio of iron, zinc and polymethacrylate is 0.03:0.08:1), and acetylene The compound gas of gas, nitrogen and hydrogen is the carrier gas (the volume ratio of acetylene, nitrogen and hydrogen is 0.2:0.3:1), the flow rate of ...

Embodiment 2

[0052] (1) Mix polyurethane resin HKOL-1050 and trimethylolpropane monoallyl ether in water at a weight ratio of 1:0.02, and then heat-react at 80°C for 2 hours to obtain a modified polyurethane resin;

[0053] Mix the above-mentioned modified polyurethane resin, epoxy resin CYD-128 (purchased from Jining Hongming Chemical Reagent Co., Ltd.) and graphene according to the weight ratio of 48:40:12 to form a mixed emulsion, then add triethylamine and mix evenly, Then put the heating wire into the mixed emulsion, and place it at room temperature for 3 hours to obtain a thermally conductive substrate;

[0054] (2) With the above-mentioned thermally conductive substrate as the base, the composite target of iron, zinc and polymethacrylate as the target (the weight ratio of copper, zinc and polymethacrylate is 0.02:0.04:1), and the acetylene The compound gas of gas, nitrogen and hydrogen is the carrier gas (the volume ratio of acetylene, nitrogen and hydrogen is 0.1:0.4:1), the flow r...

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Abstract

The invention relates to the technical field of electric heating plates, in particular to a graphene electric heating plate and a preparation method thereof. The preparation method of the graphene electric heating plate comprises the following steps: (1) uniformly mixing polyurethane resin, epoxy resin and graphene, Form a mixed emulsion, then add a curing agent and mix evenly, then put the heating wire into the mixed emulsion, and place it at room temperature for 2 to 5 hours to obtain a thermally conductive substrate; (2) use the above thermally conductive substrate as the base, and use metal and poly The composite target of methacrylate is used as the target, and the composite gas of nitrogen and hydrogen is used as the carrier gas to sputter-deposit the composite graphene electric heating layer on the thermally conductive substrate. In the present invention, the composite graphene electric heating layer is coated on the surface of the substrate, thereby significantly improving the heat conduction uniformity and electric conduction uniformity of the electric heating plate, and has good thermal stability during long-term use, and the heating rate is fast, and the service life is as high as 38 million hours.

Description

technical field [0001] The invention relates to the technical field of electric heating plates, in particular to a graphene electric heating plate and a preparation method thereof. Background technique [0002] Graphene is composed entirely of SP 2 The quasi-two-dimensional crystal material composed of hybrid carbon atoms with a thickness of only one atomic layer or several single atomic layers has excellent mechanical, electrical, and thermal properties. These excellent properties of graphene make it suitable for electric heating The field shows good application prospects. Graphene can transform the excellent properties of monolithic graphene into the performance of macroscopic materials to a certain extent through specific chemical assembly. Among them, graphene film is a typical graphene macroscopic material, which is not only green and environmentally friendly, but also has good electrical conductivity and electrothermal performance, and has high electrothermal convers...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/14H05B3/22
CPCH05B3/14H05B3/22
Inventor 崔云国
Owner 山东泰安亿美达能源科技有限公司