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High-conductivity self-adhesive graphene low-voltage heating slurry and preparation method and application thereof

A high-conductivity, graphene technology, applied in graphene, conductive coatings, nano-carbon, etc., can solve problems such as low electrical and thermal conductivity

Inactive Publication Date: 2020-10-23
武汉联维新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-conductivity self-adhesive graphene low-pressure heating slurry of the present invention is prepared by a shear peeling method, which overcomes the existing graphene heating slurry that needs to add a large amount of resin as a binder and has low electrical and thermal conductivity. Defects

Method used

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  • High-conductivity self-adhesive graphene low-voltage heating slurry and preparation method and application thereof
  • High-conductivity self-adhesive graphene low-voltage heating slurry and preparation method and application thereof
  • High-conductivity self-adhesive graphene low-voltage heating slurry and preparation method and application thereof

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Effect test

Embodiment 1

[0047] The high-conductivity self-bonding graphene low-pressure heating slurry of this embodiment is prepared by using the following raw materials in parts by mass:

[0048] Graphene 20g, heating carbon paste 35g, epoxy resin 2g, ethanol 5g, sodium dodecylbenzene sulfonate 10g, propylene imine 5g, BYK024 defoamer 2g, amino acid ester copolymer 3g; among them: the graphene It is prepared by the shear peeling method.

[0049] The high-conductivity self-adhesive graphene low-pressure heating paste described above in this embodiment is prepared by the following method, and the steps are as follows:

[0050] (1) Preparation of graphene: Dissolve 5g graphite and 25g expanded graphite in 1000mL methylpyrrolidone (NMP) in sequence, then add 0.15g surfactant polyethylene glycol-2000, and place the resulting mixture in a high-speed emulsifier , Shearing treatment for 3h under the condition of 15000rpm shearing speed. Then the mixture obtained after shearing is placed in a suction filter for ...

Embodiment 2

[0053] The high-conductivity self-bonding graphene low-pressure heating slurry of this embodiment is prepared by using the following mass parts of raw materials:

[0054] Graphene 40g, heating carbon paste 45g, phenolic resin 5g, 2-propanol 15g, sodium lauryl sulfate 20g, propylene imine 10g, BYK024 antifoaming agent 6g, amino acid ester copolymer 4g; among them: the graphene It is prepared by the shear peeling method.

[0055] The high-conductivity self-adhesive graphene low-pressure heating paste described above in this embodiment is prepared by the following method, and the steps are as follows:

[0056] (1) Preparation of graphene: Dissolve 30g graphite and 20g expanded graphite in 2000mL methylpyrrolidone (NMP), add 0.5g surfactant polyethylene glycol-4000, and place the resulting mixture in a high-speed emulsifier. The shearing treatment is 3h under the shearing speed of 15000rpm. The mixture obtained after shearing is placed in a suction filter for vacuum filtration, and the...

Embodiment 3

[0059] The high-conductivity self-bonding graphene low-pressure heating slurry of this embodiment is prepared by using the following mass parts of raw materials:

[0060] Graphene 35g, heating carbon paste 50g, acrylic resin 4g, 1-butanol 10g, polyvinylpyrrolidone 15g, propylene imine 8g, BYK024 defoamer 5g, amino acid ester copolymer 5g; wherein: the graphene is made of shear Prepared by cutting and peeling method.

[0061] The high-conductivity self-adhesive graphene low-pressure heating paste described above in this embodiment is prepared by the following method, and the steps are as follows:

[0062] (1) Preparation of graphene: Dissolve 50g graphite and 10g expanded graphite in 2000mL methylpyrrolidone (NMP), then add 1.2g surfactant polyethylene glycol-2000, and place the resulting mixture in a high-speed emulsifier. Under the condition of 15000rpm shearing speed, the shearing process is 3h. The mixture obtained after the shearing treatment is placed in a suction filter to pe...

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Abstract

The invention discloses high-conductivity self-adhesive graphene low-voltage heating slurry and a preparation method and application thereof, and belongs to the technical field of heating materials. The high-conductivity self-adhesive graphene low-voltage heating slurry is prepared from the following raw materials in parts by mass: 20-40 parts of graphene, 30-50 parts of heating carbon slurry, 1-5parts of resin, 5-15 parts of a solvent A, 10-20 parts of a dispersing agent, 5-10 parts of a water-based crosslinking coupling agent, 2-6 parts of a defoaming agent and 3-5 parts of an anti-settlingagent, wherein the graphene is prepared by utilizing a shearing stripping method. According to the method, the graphite raw material is directly subjected to high-speed shearing treatment by adoptinga shearing stripping method so that the graphite sheet layers are stripped and fall off to form graphene, and the prepared graphene is relatively low in layer number and few in defects. Besides, thegraphene low-voltage heating slurry prepared by the method only needs a low voltage of less than 36v, and is higher in low-voltage safety, good in heating stability, high in thermal conversion efficiency, longer in service life, safer and more environment-friendly.

Description

Technical field [0001] The invention belongs to the technical field of heating materials, and specifically relates to a graphene conductive heating slurry, and more specifically, the invention relates to a high-conductivity self-bonding graphene low-pressure heating slurry and a preparation method and application thereof. Background technique [0002] Although traditional electric heating materials such as metal resistance wires and nickel-chromium alloys have a fast heating rate, they have high density, heavy weight, high cost and complex processing technology. For the metal wire heating element used in large quantities, due to the oxidation effect of the metal wire at high temperature, it is easily oxidized and corroded, and the energy consumption is large, the service life is short, the electrothermal conversion efficiency is low, and there is leakage and burning in the process of household use. Security risks. [0003] In order to meet the demand for high-quality heating mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/24C09D7/61C09D7/63C09D7/65C01B32/19
CPCC09D1/00C09D5/24C01B32/19C09D7/61C09D7/63C09D7/65
Inventor 常海欣李刚辉郭辉
Owner 武汉联维新材料科技有限公司
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