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

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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

Examples

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Example Embodiment

[0025] Example 1

[0026] The preparation method of the graphene-based electric heating film capable of high-efficiency heat conduction of the present invention is as follows:

[0027] The first step, the preparation of mixed powder: Measured by mass percentage, graphene 8%, conductive carbon black 42%, glass powder 35%, ethanol 15%, disperse the powder in the ethanol solvent, and grind in the mixed ball mill until it is fully mixing;

[0028] The second step is the preparation of the organic vehicle: Measured by mass percentage, terpineol 55%, lipids 25%, ethyl cellulose 6%, dispersant BYK 10%, turpentine other 4%, put the organic solvent in a mixer and mix uniform;

[0029] The third step, the configuration of the conductive paste: Measured by mass percentage, mixed powder 60%, organic carrier 40%, first add the organic carrier and mixed powder to the mixer and stir for 10-30 minutes, then transfer to the grinder, and grind to two Fully mixed, the size of the slurry after mixing i...

Example Embodiment

[0032] Example 2

[0033] The preparation method of the graphene-based electric heating film capable of high-efficiency heat conduction of the present invention is as follows:

[0034] The first step, the preparation of mixed powder: Measured by mass percentage, graphene 16%, conductive carbon black 34%, glass powder 35%, ethanol 15%, disperse the powder in ethanol solvent, and grind in a mixed ball mill until it is fully mixing;

[0035] The second step, the preparation of organic vehicle: Measured by mass percentage, terpineol 55%, lipids 25%, ethyl cellulose 6%, dispersant BYK 10%, turpentine 4%, put the organic solvent in a mixer and mix well ;

[0036] The third step, the configuration of the conductive paste: Measured by mass percentage, mixed powder 60%, organic carrier 40%, first add the organic carrier and mixed powder to the mixer and stir for 10-30 minutes, then transfer to the grinder, and grind to two Fully mixed, the size of the slurry after mixing is less than 15μm;

...

Example Embodiment

[0039] Example 3

[0040] The preparation method of the graphene-based electric heating film capable of high-efficiency heat conduction of the present invention is as follows:

[0041] The first step is the preparation of the mixed powder: Measured by mass percentage, graphene 25%, conductive carbon black 25%, glass powder 35%, ethanol 15%, disperse the powder in the ethanol solvent, and grind in the mixed ball mill until sufficient mixing;

[0042] The second step, the preparation of organic vehicle: Measured by mass percentage, terpineol 55%, lipids 25%, ethyl cellulose 6%, dispersant BYK 10%, turpentine 4%, put the organic solvent in a mixer and mix well ;

[0043] The third step, the configuration of the conductive paste: Measured by mass percentage, mixed powder 60%, organic carrier 40%, first add the organic carrier and mixed powder to the mixer and stir for 10-30 minutes, then transfer to the grinder, and grind to two Fully mixed, the size of the slurry after mixing is less t...

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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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