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Graphene radiation heating film and preparation method thereof

A technology of graphene and heating film, which is applied in the field of material engineering, can solve the problems of high cost, and achieve the effects of low cost, high thermal power, good aging resistance and corrosion resistance

Active Publication Date: 2021-07-30
广东温道百镒健康科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Graphene has super electrical conductivity, thermal conductivity and steel toughness, so it can be made into a thin flexible surface heating film with superior performance, but the disadvantage is that the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A kind of preparation method of graphene radiation heating film:

[0045] First prepare the heating layer spray liquid, the method is as follows:

[0046] Step 1: Take 20Kg of crystalline tin tetrachloride, pour it into a plastic barrel with a volume of more than 100 liters, then add 50Kg of industrial alcohol with a concentration of 75% by volume and soak for 24 hours, stir with a plastic rod occasionally, let the four Tin chloride is completely soluble in alcohol.

[0047] The second step: Take 21 grams of graphene and pour it into the solution prepared in the first step.

[0048] The third step: take 200 grams of ferric chloride and put it into a glass vessel with a volume of 2 liters, add 1000 milliliters of industrial alcohol with a concentration of 75%, heat it with a heating device, and stir it magnetically. After it is completely dissolved, put Pour all the dissolving solution into the solution prepared in the first step and the second step, mix and stir evenl...

Embodiment 2

[0052] A kind of preparation method of graphene radiation heating film:

[0053] Graphene oxide is prepared first.

[0054]The preparation method of described graphene oxide is, take 1g graphene powder, 0.5g sodium nitrate, 1g potassium permanganate and add in the flask of ice-water bath, add 20ml concentrated sulfuric acid by dropwise, stir slowly, after adding 10ml Add 1g of potassium permanganate when concentrated sulfuric acid is added, and then add 1g of potassium permanganate after adding 20ml of concentrated sulfuric acid, then slowly stir until the liquid is slightly yellow, heat up to 80°C, then add 50ml of deionized water dropwise, and react for 1h . Then add 100ml of deionized water, and then dropwise add 30% hydrogen peroxide until the liquid is bright yellow. After filtering, wash with 10% dilute hydrochloric acid until no sulfate ion is detected, and then wash with deionized water until the pH of the washing solution is stable. Soak in 0.01% (v / v) Tween 80 dei...

Embodiment 3

[0058] A kind of preparation method of graphene radiation heating film:

[0059] The difference from Example 2 is that in the method for preparing the heat-generating layer spray liquid, the amount of graphene oxide used is 0.8 g. The remaining parameters include the amount of mixed liquid consumed, the carrier and the area sprayed on the carrier, and the time is the same.

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Abstract

The invention discloses a graphene radiation heating film and a preparation method thereof. The graphene radiation heating film comprises a carrier and a heating layer formed by spraying a heating layer spraying liquid on the carrier, wherein the heating layer spraying liquid comprises an alcoholic solution of stannic chloride, graphene and ferric trichloride. The inventor of the invention uses the nanometer performance, impedance, thermal conductivity and the like of graphene, the graphene, tin tetrachloride, ferric trichloride and 75% alcohol are mixed together to prepare a liquid coating, the liquid coating is sprayed on a high-temperature-resistant planar material (such as a mica plate), high-temperature coating is performed, and a heating plate is formed. The heating film is uniform and stable, and the impedance can be adjusted, so the purpose of adjusting power is achieved. The produced composite graphene heating film is stable in performance, high in heat radiation rate (0.88 or above), long in service life and low in cost.

Description

technical field [0001] The invention belongs to the field of material engineering, and in particular relates to a graphene radiation heating film and a preparation method thereof. Background technique [0002] In the far-infrared heating film, there are usually the following heating methods: [0003] A. Metal wires are inlaid in the middle of the heating film. This heating method was more common in the past. The advantages are simple, economical and convenient. The disadvantages are linear heating, poor life and safety, local high temperature, poor uniformity and comfort, especially for metal. Conductive and afraid of water, there is a big safety hazard in the application; [0004] B. Carbon fiber filaments generate heat. The heating performance of carbon fiber wire is much better than that of metal wire, and it can be made into a flexible film, but it still generates heat in a linear manner, with local high temperature and poor uniformity and comfort. [0005] C. The car...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/14H05B3/20
CPCH05B3/145H05B3/20
Inventor 陈建业
Owner 广东温道百镒健康科技有限公司
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