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Graphene-based electrothermal film capable of efficient heat conduction and preparation method thereof

A graphene, electrothermal film technology, applied to conductive layers on insulating carriers, cable/conductor manufacturing, circuits, etc., can solve the problems of low heating rate, high energy consumption, slow thermal conductivity, etc. The effect of shortened rise time and high thermal conductivity

Inactive Publication Date: 2017-07-14
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to the current research, the heating elements in the electric heating system are generally made of metal materials, and the most used is nickel-chromium alloy. These materials generally have problems such as low heating rate, slow heat conduction speed, and large energy consumption. There are very few studies, especially for the rapid heat generation under low energy consumption, so that the electric heating film can be used in the field of aviation deicing, etc. There are few reports

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  • Graphene-based electrothermal film capable of efficient heat conduction and preparation method thereof
  • Graphene-based electrothermal film capable of efficient heat conduction and preparation method thereof
  • Graphene-based electrothermal film capable of efficient heat conduction and preparation method thereof

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Effect test

Embodiment 1

[0026] The preparation method of the electrothermal film based on graphene that can conduct heat efficiently of the present invention is as follows:

[0027] The first step, the preparation of mixed powder: metered by mass percentage, graphene 8%, conductive carbon black 42%, glass powder 35%, ethanol 15%, the powder is dispersed in ethanol solvent as in the mixed ball mill and ground until fully mix;

[0028] The second step, the preparation of organic carrier: measure by mass percentage, terpineol 55%, lipid 25%, ethyl cellulose 6%, dispersant BYK 10%, turpentine other 4%, organic solvent is placed in mixer and mixed uniform;

[0029] The third step, the configuration of the conductive paste: measure by mass percentage, mixed powder 60%, organic vehicle 40%, first add the organic vehicle and mixed powder to the mixer and stir for 10-30min, then transfer to the grinder, grind to two or fully mixed, the particle size of the mixed slurry is less than 15μm;

[0030] The fourt...

Embodiment 2

[0033] The preparation method of the electrothermal film based on graphene that can conduct heat efficiently of the present invention is as follows:

[0034] The first step, the preparation of mixed powder: metered by mass percentage, graphene 16%, conductive carbon black 34%, glass powder 35%, ethanol 15%, the powder is dispersed in ethanol solvent as in mixing ball mill and grinds until fully mix;

[0035] The second step, the preparation of organic vehicle: measure by mass percentage, terpineol 55%, lipid 25%, ethyl cellulose 6%, dispersant BYK10%, turpentine 4%, organic solvent is placed in the blender and mixes ;

[0036] The third step, the configuration of the conductive paste: measure by mass percentage, mixed powder 60%, organic vehicle 40%, first add the organic vehicle and mixed powder to the mixer and stir for 10-30min, then transfer to the grinder, grind to two or fully mixed, the particle size of the mixed slurry is less than 15μm;

[0037] The fourth step, th...

Embodiment 3

[0040] The preparation method of the electrothermal film based on graphene that can conduct heat efficiently of the present invention is as follows:

[0041] The first step, the preparation of mixed powder: metered by mass percentage, graphene 25%, conductive carbon black 25%, glass powder 35%, ethanol 15%, the powder is dispersed in ethanol solvent as in the mixed ball mill and ground until fully mix;

[0042] The second step, the preparation of organic vehicle: measure by mass percentage, terpineol 55%, lipid 25%, ethyl cellulose 6%, dispersant BYK10%, turpentine 4%, organic solvent is placed in the blender and mixes ;

[0043]The third step, the configuration of the conductive paste: measure by mass percentage, mixed powder 60%, organic vehicle 40%, first add the organic vehicle and mixed powder to the mixer and stir for 10-30min, then transfer to the grinder, grind to two or fully mixed, the particle size of the mixed slurry is less than 15μm;

[0044] The fourth step, ...

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Abstract

The invention discloses a graphene-based electrothermal film capable of efficient heat conduction and a preparation method thereof. The graphene-based electrothermal film comprises an upper insulation material layer, a conductive paste layer, a bottom insulation material layer and an electrode, wherein the electrode is arranged on the conductive paste layer, conductive paste is uniformly coated on a bottom insulation material, and an upper-layer insulation material is attached onto the bottom insulation material coated with the conductive paste by a hot-pressing lamination method to form an insulation material-heat conduction paste-insulation material composite structured electrical heating film. After graphene is added into the electrical heating film, the prepared electrical heating film has relatively high heat conduction performance, the electrothermal conversion efficiency is favorably improved, and the temperature rising time after the heating film is energized is shortened.

Description

technical field [0001] The invention relates to the field of infrared electrothermal technology, in particular to a graphene-based electrothermal film capable of efficient heat conduction and a preparation method thereof. Background technique [0002] Advanced composite materials (referring to composite materials composed of high-performance reinforcements such as carbon fiber, aramid fibers, etc., and high-performance heat-resistant polymers, and later metal-based, ceramic-based, carbon (graphite)-based and functional composite materials are included) , since its development, has been playing an important role in the defense industry, aerospace, precision instruments and other fields because of its high performance and low density. Especially in recent years, with the development of nanomaterials, the advantages of composite materials such as high performance and low filling rate have gradually emerged. [0003] According to the current research, the heating elements in th...

Claims

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Application Information

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IPC IPC(8): H05B3/14H01B5/14H01B13/00
Inventor 朱春玲钱梦霜沈一洲孙一哲陶杰
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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