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A kind of composite graphene ground heating slurry and preparation method thereof

A composite graphene and graphene technology, applied in the field of floor heating slurry, can solve the problems of increased cost, short service life, power attenuation, etc., and achieve the effect of uniform resistance, improved resistance uniformity, and uniform heating of the film layer

Active Publication Date: 2022-02-18
浙江格来菲科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the floor heating electric heating film prepared by printing is widely used in heating in the north; the ink used in the traditional floor heating film is ordinary carbon crystal electric heating ink, and the carbon crystal floor heating on the market is a modified and purified carbon particle heating product. After the heat treatment, the ball milling treatment is carried out to make the microcrystalline particles, and then the far-infrared emitter is added, and the heating element is synthesized by a special process. Thermal energy is generated by the collision and friction between carbon molecules, and a large amount of infrared radiation is generated, and the conversion rate of electric energy and thermal energy is over 98%. However, the electrothermal film made of existing carbon crystal electrothermal ink has insufficient power attenuation Therefore, the service life of membrane products is short and the cost of later maintenance is increased.

Method used

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  • A kind of composite graphene ground heating slurry and preparation method thereof

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Effect test

Embodiment 1

[0029] like figure 1 Shown, the preparation method of the composite graphene floor heating slurry of the present embodiment comprises the following steps:

[0030] 1. Preparation of preoxidized carbon fiber short fibers and carbon microspheres

[0031] (1) The pre-oxidized carbon fiber precursors (2kg) with a specification of 3K are put into a disc extrusion fiber cutter (3kW power), and the pre-oxidized carbon fiber precursors are cut into short fibers of 3mm length.

[0032] (2) Preparation of carbon microspheres by medium-temperature thermal polymerization method: take medium-temperature coal tar pitch, put it into a pressurized and sealed reaction kettle, the pressure is 1.0MPa, the temperature rises to 350°C, the stirring speed is 400r / min, and the time is 4 hours to obtain carbon microspheres. The mixture of microspheres is separated and extracted by the organic solvent toluene and n-hexane, and the carbon microspheres are obtained by extraction; drying and washing with...

Embodiment 2

[0038] The difference between this embodiment and the first embodiment lies in that the particle diameters of the carbon fiber precursor powder and the carbon microspheres are different.

[0039] The preparation method of the composite graphene floor heating slurry of the present embodiment may further comprise the steps:

[0040] 1. Preparation of preoxidized carbon fiber short fibers and carbon microspheres

[0041] (1) The pre-oxidized carbon fiber precursors (2kg) with a specification of 3K are put into a disc extrusion fiber cutter (3kW power), and the pre-oxidized carbon fiber precursors are cut into short fibers of 3mm length.

[0042] (2) Preparation of carbon microspheres by medium-temperature thermal polymerization method: take medium-temperature coal tar pitch, put it into a pressurized and sealed reactor, the pressure is 1.0MPa, the temperature rises to 390°C, the stirring speed is 500r / min, and the time is 4 hours to obtain carbon microspheres. The mixture of mic...

Embodiment 3

[0049] The difference between this embodiment and the first embodiment lies in that the mass ratio of carbon fiber precursor powder to carbon microspheres is different.

[0050] Specifically, the preparation method of the composite graphene floor heating slurry of the present embodiment comprises the following steps:

[0051] 1. Preparation of preoxidized carbon fiber short fibers and carbon microspheres

[0052] (1) The pre-oxidized carbon fiber precursor (5kg) with a specification of 3K is put into a disc extrusion fiber cutter (3kW power), and the pre-oxidized carbon fiber precursor is cut into short fibers of 3mm length.

[0053] (2) Preparation of carbon microspheres by medium-temperature thermal polymerization method: take medium-temperature coal tar pitch, put it into a pressurized and sealed reaction kettle, the pressure is 1.0MPa, the temperature rises to 350°C, the stirring speed is 400r / min, and the time is 4 hours to obtain carbon microspheres. The mixture of micr...

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Abstract

The invention belongs to the technical field of floor heating slurry, and specifically relates to a composite graphene floor heating slurry and a preparation method thereof; wherein, the composite graphene floor heating slurry, in parts by weight, comprises: carbon fiber / graphene / carbon microsphere powder 0.1-30, matrix binder 0.1-70, dispersant 0.1-5, leveling agent 0.1-5, anti-sedimentation agent 0.1-5, defoamer 0.1-1. The composite graphene floor heating slurry prepared by the carbon fiber / graphene / carbon microsphere composite powder in the present invention has the characteristics of good adhesion, high conductivity, water resistance, alcohol resistance, etc.; it also has excellent conductivity uniformity and anti-attenuation characteristics in use .

Description

technical field [0001] The invention belongs to the technical field of floor heating slurry, and in particular relates to a composite graphene floor heating slurry and a preparation method thereof. Background technique [0002] With the vigorous promotion of winter heating policies, more and more researchers are focusing on the development and application of carbon material conductive ink printing electric heating products, which is based on the excellent electrical conductivity and heat transfer properties of carbon materials. Among them, the floor heating electric heating film prepared by printing is widely used in heating in the north; the ink used in the traditional floor heating film is ordinary carbon crystal electric heating ink, and the carbon crystal floor heating on the market is a modified and purified carbon particle heating product. After the heat treatment, the ball milling treatment is carried out to make the microcrystalline particles, and then the far-infrar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/52C09D11/102C09D11/03H05B3/14
Inventor 李晓红
Owner 浙江格来菲科技有限公司
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