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Carbon-based electrothermal paste based on graphene clusters, its preparation method and application

A graphene cluster, graphene technology, applied in conductive materials dispersed in non-conductive inorganic materials, heating element materials, cable/conductor manufacturing, etc., can solve the problem of insufficient far-infrared radiation intensity, low electrothermal conversion efficiency, and thermal conductivity. Problems such as poor heat transfer performance, to achieve the effects of excellent thermal conductivity, reduced viscosity, and excellent electrical conductivity

Active Publication Date: 2017-01-11
苏州格瑞丰纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, domestic electrothermal slurry products generally have problems such as short service life, low heating rate, easy oxidation, poor heat conduction and heat transfer performance, low electrothermal conversion efficiency, and insufficient far-infrared radiation intensity. The main direction of research and development

Method used

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  • Carbon-based electrothermal paste based on graphene clusters, its preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0027] The formula (percentage by weight) of the carbon-based electrothermal paste based on graphene clusters is as follows:

[0028] Conductive material: acetylene black (average particle size 10nm) 40%

[0029] Graphene clusters (morphology such as figure 1 As shown, composed of graphene with an average size of 300μm) 2%

[0030] Water-based binder: water-based epoxy resin (Rongzhong Chemical C252) 55%

[0031] Leveling agent: Huaxia Auxiliary HX5600 (organic modified polydimethylsiloxane solution) 0.5%

[0032] Defoamer: Huaxia Auxiliary HX5041 (Mineral Oil, Foam Breaking Polysiloxane, Inorganic Hydrophobic Compound Mixture) 0.5%

[0033] Solvent: Texanol 2%.

[0034] Mix all the components according to the aforementioned formula, and mix thoroughly until uniform, to obtain the carbon-based electric heating paste of this embodiment. The slurry has excellent film-forming properties, the resistivity of the obtained film is 22Ω / cm, the thermal conductivity is 12.1W / (mK), ...

Embodiment 2

[0036] The formula (percentage by weight) of the carbon-based electrothermal paste based on graphene clusters is as follows:

[0037] Conductive carbon material: graphite (average particle size 100 microns) 25%

[0038] Graphene clusters (composed of graphene and carbon black 1:1, with an average size of 300μm) 5%

[0039] Oily vehicle: acrylic resin 69%;

[0040] Leveling agent: Huaxia Auxiliary HX5600 (organic modified polydimethylsiloxane solution) 0.5%

[0041] Defoamer: Huaxia Auxiliaries HX5041 (mineral oil, polysiloxane for breaking foam, mixture of inorganic hydrophobic compounds) 0.5%.

[0042] Mix all the components according to the formula, and mix thoroughly until uniform to obtain the carbon-based electric heating paste of this embodiment. The slurry has excellent film-forming properties, the resistivity of the obtained film is 18Ω / cm, the thermal conductivity is 10.9W / (mK), the electrothermal conversion efficiency is 98.6%, and the radiation wavelength range i...

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Abstract

The invention discloses a carbon-based electrothermal slurry based on graphene clusters, a preparation method and application thereof. The slurry includes: 10-70 parts by weight of an electrical and heat-conducting agent and a far-infrared enhancer, 10-60 parts by weight of a solvent, 0.1-10 parts by weight of an auxiliary agent, and 5-60 parts by weight of a resin linker; wherein the electrically-conducting and heat-conducting agent contains Graphene clusters. The present invention uses graphene clusters alone or in combination with other carbon-based materials as the conductive heat conduction agent and far-infrared enhancer of the electrothermal slurry, which can greatly reduce the resistivity of the slurry after printing and film formation, and improve thermal conductivity and electrothermal conversion. High efficiency and far-infrared radiation intensity, reduce manufacturing costs, and at the same time reduce the viscosity of the slurry, improve the fluidity of the slurry and the printing adaptability of the transfer, which is of great significance to energy saving, consumption reduction, health and physical therapy, etc.

Description

technical field [0001] The invention relates to a carbon-based electrothermal slurry and a preparation method thereof, in particular to a graphene cluster-based carbon-based electrothermal slurry, a preparation method and an application thereof, and belongs to the technical field of electrothermal functional materials. Background technique [0002] Heating is the focus of winter in most parts of our country. The most critical step in the heating process is the research and development of electric heating paste. However, at present, domestic electrothermal slurry products generally have problems such as short service life, low heating rate, easy oxidation, poor heat conduction and heat transfer performance, low electrothermal conversion efficiency, and insufficient far-infrared radiation intensity. The main direction of research and development. Contents of the invention [0003] The main purpose of the present invention is to provide a carbon-based electrothermal paste b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/04H01B1/24H01B13/00H05B3/10
Inventor 刘立伟李奇刘朝军王汝冰徐建宝陈明亮
Owner 苏州格瑞丰纳米科技有限公司
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