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Preparation method of graphene heating coating and preparation method of heating sheet

A heating coating and graphene technology, applied in conductive coatings, heating element materials, epoxy resin coatings, etc., can solve the problems of inability of constant temperature and power compensation of heating elements, complex structure of electric heating system, and low resistance value of nickel-chromium alloys, etc. To achieve the effect of rich raw materials, high heating temperature, heat accumulation and high temperature resistance

Inactive Publication Date: 2021-03-26
何祥林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The prior art heating sheet uses resistance wire as the heating element. Because the resistance wire is generally made of nickel-chromium alloy, the resistance value of the nickel-chromium alloy is low, the density is high, the thickness cannot be broken through, the electrothermal conversion value is low, the heating rate is small, and the heating element cannot be kept at a constant temperature. And power compensation function, and the structure of the electric heating system is complex, the heat quality is low, and the nickel-chromium alloy is a ferrite alloy, which is brittle at room temperature, medium temperature, and high temperature. Therefore, a graphene heating coating with fast heating and good heating effect is invented. And it is very important to use the graphene heating coating to make a heating sheet to replace the traditional heating sheet

Method used

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  • Preparation method of graphene heating coating and preparation method of heating sheet
  • Preparation method of graphene heating coating and preparation method of heating sheet
  • Preparation method of graphene heating coating and preparation method of heating sheet

Examples

Experimental program
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Effect test

preparation example Construction

[0046] A preparation method for graphene heat-generating coating, is characterized in that, comprises the following steps:

[0047] Step 1: Prepare 2.5g of graphene, 2.5g of epoxy resin, 10g of dispersant, 73g of ethanol and 2g of metal neodymium powder;

[0048] Step 2: Mix the graphene with the disperser, adjust the power of the grinder to 300W, control the grinder to work for 5 hours, and grind and disperse;

[0049] Step 3: After the grinding in step 2, continue to add metal neodymium powder, control the grinder to work for 2 hours, and grind and disperse;

[0050] Step 4: After the grinding in step 3, continue to add epoxy resin, control the grinder to work for 3 hours, and grind and disperse;

[0051] Step 5: After the grinding in step 4, continue to add ethanol, control the grinder to work for 1 minute, and grind and disperse to form a graphene heating coating solution.

[0052] Further, the formula ratio of the graphene heating coating solution is as follows:

[005...

Embodiment

[0070] Example, combined with figure 1 Shown, a kind of heating chip comprises ceramic panel 1, and described ceramic panel 1 is spaced apart with through hole 12, and one end surface of ceramic panel 1 is sprayed with conductive coating 6, and the graphene of 2.5um thickness is sprayed on ceramic panel 1 to generate heat The coating forms a graphene heating coating 7, and the graphene heating coating 7 covers a part of the conductive coating 6, and a part of the conductive coating 6 is exposed outside the graphene heating coating 7.

[0071] The ceramic panel 1 is spaced with through holes 12 to enhance the heat conduction effect of the ceramic panel 1, make the ceramic panel 1 heat up more quickly, increase the heating temperature, and meet user needs.

[0072] Example, combined with Figure 2 to Figure 5 As shown, a heating brick for a blister machine includes a ceramic panel 1 , a ceramic cover 2 , a temperature sensor 3 , a live wire 4 and a neutral wire 5 .

[0073] Bo...

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Abstract

The invention relates to a preparation method of a graphene heating coating. The preparation method comprises the steps of 1 preparing graphene, resin, an auxiliary agent, a solvent and metal neodymium powder; 2 mixing graphene and an auxiliary agent, adjusting the power of a grinding machine to 300W, controlling the grinding machine to work for 5 hours, and grinding and dispersing; 3 after grinding in the step 2 is finished, continuously adding the metal neodymium powder, controlling the grinding machine to work for 2 hours, and grinding and dispersing; 4 after grinding in the step 3 is finished, continuously adding the resin, controlling the grinding machine to work for 3 hours, and grinding and dispersing; and 5 after grinding in the step 4 is finished, continuously adding the solvent,controlling the grinding machine to work for one hour, and grinding and dispersing to form a graphene heating coating solution. The graphene is dispersed into the graphene solution through the steps,so that the graphene solution with high heat-conducting property is obtained, the operation is simple, and the cost is lower.

Description

technical field [0001] The invention relates to a preparation method of a graphene heating coating and a preparation method of a heating sheet. Background technique [0002] The prior art heating sheet uses resistance wire as the heating element. Because the resistance wire is generally made of nickel-chromium alloy, the resistance value of the nickel-chromium alloy is low, the density is high, the thickness cannot be broken through, the electrothermal conversion value is low, the heating rate is small, and the heating element cannot be kept at a constant temperature. And power compensation function, and the structure of the electric heating system is complex, the heat quality is low, and the nickel-chromium alloy is a ferrite alloy, which is brittle at room temperature, medium temperature, and high temperature. Therefore, a graphene heating coating with fast heating and good heating effect is invented. And it is very important to use the graphene heating coating to make a h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/61C09D5/24H05B3/14H05B3/20
CPCC09D163/00C09D7/61C09D5/24H05B3/145H05B3/20C08K2201/001C08K3/042C08K3/08Y02B30/00
Inventor 何祥林
Owner 何祥林
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