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High-emissivity negative ion modified graphene heating carbon paste and preparation method thereof

A high emissivity, negative ion technology, applied in electric heating devices, furnace heating elements, ohmic resistance heating, etc., can solve the problems of poor uniformity and fluidity of heating carbon paste, poor fluidity of heating carbon paste, unsuitable for production and application, etc. Excellent physiotherapy effect, improved product stability, high stability effect

Pending Publication Date: 2022-02-25
浙江希维纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of solvents such as DMF will be used in the process of producing heat-generating carbon paste by using its method, which is highly polluting, highly toxic, and not environmentally friendly
[0006] 3), the patent application number 201811626053.9 discloses a preparation method of an environmentally friendly graphene conductive carbon paste and its application on a flexible heating film. The heating carbon paste prepared by this method has poor fluidity and poor film-forming performance. Good, uneven thickness after film formation
However, the uniformity and fluidity of the heating carbon slurry prepared by this patented method are very poor, which is not suitable for production applications

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Embodiment 1: a kind of high emissivity negative ion modified graphene heating carbon paste, graphene powder content 5% in the conductive filler, far-infrared emission material content 3% in the heating carbon paste:

[0061] The raw material is composed of the following components in mass content: 20% of binder, 15% of conductive filler, 3% of far-infrared emitting material, 60% of solvent and 2% of auxiliary agent.

[0062] The 2% additive consists of BYK190 dispersant accounting for 1% of the total amount of raw materials, silicone defoamer BYK019 accounting for 0.5% of the total amount of raw materials, and BYK346 leveling agent accounting for 0.5% of the total amount of raw materials; that is, BYK190 dispersant , Silicone defoamer BYK019, BYK346 leveling agent = 2:1:1 mass ratio.

[0063] The binder is composed of polyester resin A and polyester resin B, polyester resin A: polyester resin B: = 3:1.

[0064] The conductive filler is composed of the following compon...

Embodiment 2

[0080] Embodiment 2: A kind of high-emissivity negative ion modified graphene heating carbon paste,

[0081] The raw material is composed of the following components: 20% of binder, 15% of conductive filler, 4% of far-infrared emitting material, 59% of solvent and 2% of auxiliary agent.

[0082] The conductive filler is composed of the following components in mass content: 6% of graphene powder, 40% of conductive graphite, 39% of conductive carbon black, 10% of carbon nanotubes, and 5% of silver nanomaterials.

[0083] The far-infrared emitting material is composed of the following components in mass content: 50% of tourmaline, 35% of bamboo charcoal powder, and 15% of spinel nanometer infrared emitting powder.

[0084] All the other contents (including preparation method) are equal to Example 1.

[0085] The high-emissivity anion-modified graphene heating carbon slurry prepared in this embodiment 2 is detected according to the method described in the above-mentioned experime...

Embodiment 3

[0087] Embodiment 3: a kind of high emissivity negative ion modified graphene heating carbon slurry,

[0088] The raw material is composed of the following components: 20% of binder, 15% of conductive filler, 5% of far-infrared emitting material, 58% of solvent and 2% of auxiliary agent.

[0089] The conductive filler is composed of the following components in mass content: 7% of graphene powder, 40% of conductive graphite, 38% of conductive carbon black, 10% of carbon nanotubes, and 5% of silver nanomaterials.

[0090] The far-infrared emitting material is composed of the following components in mass content: 40% of tourmaline, 40% of bamboo charcoal powder, and 20% of spinel nanometer infrared emitting powder.

[0091] All the other contents (including preparation method) are equal to Example 1.

[0092] The high-emissivity anion-modified graphene heating carbon slurry prepared in this embodiment 3 is detected according to the method described in the above-mentioned experim...

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Abstract

The invention discloses high-emissivity negative ion modified graphene heating carbon paste and a preparation method thereof. The high-emissivity negative ion modified graphene heating carbon paste is prepared from the following raw materials in percentage by weight: 15-35% of a binder, 15-35% of a conductive filler, 3-5% of a far infrared emission material, 2-3% of an auxiliary agent and the balance of a solvent. The conductive filler is composed of graphene powder, conductive graphite, conductive carbon black, carbon nanotubes and a silver nanomaterial; and the far infrared emission material is composed of tourmaline, bamboo charcoal powder and infrared emission powder. The production process is simple, the far infrared emissivity is high, and the stability of the heating carbon paste is good. The product can be widely applied to the fields of floor heating, wall heating, warmers, physiotherapy products and the like.

Description

technical field [0001] The invention relates to a high emissivity negative ion modified graphene heating carbon paste and a preparation method thereof. Heating carbon paste can be widely used in floor heating film, wall heating, heating murals, epoxy resin heating panels, heating carpets, heating tatami mats, far infrared heaters and far infrared physiotherapy products, etc. Background technique [0002] As a comfortable and clean heating method, electric heating is considered to have a significant effect on environmental improvement and air pollution control. As a new type of carbon material with a two-dimensional sheet structure, graphene itself has high electrical conductivity and emissivity. The far-infrared radiation released after it is energized and heated has a physiotherapy effect on the human body. Its lamellar structure is also conducive to overlapping other conductive fillers and far-infrared emitting materials in the heating carbon paste, making the conductive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/14H05B3/03H05B3/62
CPCH05B3/145H05B3/03H05B3/62
Inventor 郭兴忠洪晔刘中伟单加琪杨辉
Owner 浙江希维纳米科技有限公司
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