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Flexible graphene electric heating net and preparation method thereof

A technology of flexible graphite and electric heating network, applied in the direction of electric heating devices, ohmic resistance heating, electrical components, etc., can solve the problems of not being able to fully fit the surface of the human body, affecting wearing comfort, and poor light transmission, achieving low cost, The effect of reducing radiation and simple process

Inactive Publication Date: 2020-01-03
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, many invention patents of graphene heating products and health care products focus on graphene electric heating film. Fully fit the complex and changeable human body surface
When the area of ​​the graphene electric heating film is too large, it will lead to poor safety due to many interfaces, and the light transmission is not good, so the graphene electric heating film is not suitable for large-scale heating spaces such as large factories and greenhouses
In addition, as an electrical appliance, graphene electrothermal film also has the problem of electromagnetic radiation.

Method used

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  • Flexible graphene electric heating net and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment approach

[0024] (1) The graphene electric heating layer has 6 to 10 layers of graphene, with a carbon content > 85%, less graphene consumption, low cost, and good flexibility of the graphene electric heating network, which can fit complex surfaces.

[0025] (2) The graphene electric heating layer and the protective insulating layer are made of the same polymer material, so that the interface between the graphene electric heating layer and the protective insulating layer has a strong binding ability and is not easy to fall off. In practical applications, the polymer material is one of epoxy resin, polyurethane resin and acrylic resin.

[0026] (3) The dispersant is at least one of polyvinylpyrrolidone (PVP), sodium dodecylbenzenesulfonate (SDBS), sodium carboxymethylcellulose (CMC), and sodium dodecyl sulfate (SDS). kind.

[0027] (4) The curing agent is at least one of dicumyl peroxide (DCP), hexamethylene diisocyanate (HDI), p-phenylene diisocyanate (PPDI), biuret polyisocyanate (HDI...

Embodiment 1

[0037] A kind of flexible graphene electric heating net, its preparation method can comprise the following steps:

[0038] Step 1. In parts by mass, mix 100 parts of polyurethane water-based resin, 2.05 parts of graphene, 0.6 part of dispersant CMC, 22.5 parts of deionized water, and 1.05 parts of curing agent HDI to prepare graphene electric heating layer slurry ; In parts by mass, 100 parts of polyurethane water-based resin, 1.05 parts of curing agent HDI, and 22.5 parts of deionized water are mixed together to obtain a protective insulating layer slurry;

[0039] Step 2. Bond the graphene electric heating layer slurry with the radiation-proof mesh material made of glass fiber with a mesh size of 5 mm × 5 mm by hot pressing and drying, and then bond with the protective insulating layer slurry Integrate and dry to make a flexible graphene electric heating network.

[0040] Wherein, the radiation-proof mesh material is built with metal wires parallel to the warp wires at a di...

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Abstract

The invention discloses a flexible graphene electric heating net and a preparation method thereof. The flexible graphene electric heating net comprises a substrate layer, a graphene electric heating layer and a protective insulating layer which are stacked in sequence. The substrate layer is made of an anti-radiation mesh material. The graphene electric heating layer is prepared from the followingcomponents in parts by mass: 100 parts of a high polymer material, 1-3 parts of graphene, 0.1-1 part of a dispersing agent, 20-30 parts of de-ionized water and 1-2 parts of a curing agent. The protective insulating layer is composed of the following components in parts by mass: 100 parts of a high polymer material, 1-2 parts of a curing agent and 20-30 parts of de-ionized water. The flexible graphene electric heating net can be suitable for a heating environment with a complex surface, can also be suitable for a large-area heating environment, can weaken the magnetic field itself, and has less electromagnetic wave radiation.

Description

technical field [0001] The invention relates to the field of electrothermal materials, in particular to a flexible graphene electric heating network and a preparation method thereof. Background technique [0002] Graphene has high thermal conversion efficiency after electrification, and can generate far-infrared waves, which have health benefits for the human body, and at the same time, there is no discomfort caused by air conditioners, heaters, and oil heaters. Therefore, graphene is being used more and more in Heating, physiotherapy equipment. [0003] At present, many invention patents of graphene heating products and health care products focus on graphene electric heating film. Fully fit the complex and changeable human body surface. When the area of ​​the graphene electric heating film is too large, it will cause poor safety due to many interfaces, and the light transmission is not good. Therefore, the graphene electric heating film is not suitable for large-scale hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/36H05B3/14H05B3/18H05B3/00
CPCH05B3/0071H05B3/0085H05B3/145H05B3/18H05B3/36
Inventor 刘太奇王效军
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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