Graphene heating film

A kind of graphene heating film and graphite technology, applied in the field of graphene heating film, can solve the problems of heating film burns, uneven dispersion of fillers, fire, etc., and achieve the effects of easy cutting, light weight and high conversion rate

Active Publication Date: 2018-09-21
江苏瑞卓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

[0008] However, the problem of the current heating film is that the dispersion of the filler is not uniform, resulting in excessive local temperature, causing the heating film to have a certain safety hazard of burns or fire. Therefore, it is necessary to change the dispersion of the material and ensure the heating efficiency of the material. the key to the problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0044] The preparation process of dispersant is as follows:

[0045] step one,

[0046] Step two,

[0047] Wherein, the reaction temperature of step 1 is 110° C., and the reaction time is 5 hours; the reaction temperature of step 2 is 150° C., and the reaction time is 3.5 hours.

[0048] Regarding the film-forming resin, there are several options as follows. The film-forming resin includes oily resin; specifically, it can be selected as one or more of oily acrylic resin, oily epoxy resin, oily silicone resin, oily polyurethane resin and oily chlorine-containing resin. Several kinds; oily chlorine-containing resins include one or both of oily chlorine ether resins, oily perchlorethylene resins, and oily vinyl vinegar resins.

[0049] When choosing oleoresin, the curing agent includes

[0050] in, Here k is an integer in 1-6, which is prepared by the following steps:

[0051] That is the reaction of acid and polyenamine.

[0052] The film-forming resin includes wa...

Embodiment 1

[0056] A kind of graphene heating film, comprises film-forming component and curing agent, and the mass ratio of film-forming component and curing agent is 15:1; Curing agent is

[0057] Wherein, film-forming component comprises each material of following mass percentage content:

[0058]

[0059] Wherein, the dispersant that the present application adopts comprises the material of following molecular structure:

[0060]

[0061] Catalysts include:

[0062]

[0063] During application, first, the film-forming components are stirred and mixed according to the proportion, and ground on a sand mill. When the grinding particle size reaches 1-5 microns, according to the mass ratio of film-forming components / curing agent=15 / 1, Add curing agent, stir evenly, coat on the substrate, dry at 150 degrees Celsius for half an hour, measure its resistance, the test value is 6Ω; when working, the working voltage is 24V, the heat production is 115W, and the infrared wavelength of r...

Embodiment 2

[0065] A kind of graphene heating film, comprises film-forming component and curing agent, and the mass ratio of film-forming component and curing agent is 15:1; Curing agent is

[0066] Wherein, film-forming component comprises each material of following mass percentage content:

[0067]

[0068] Wherein, the dispersant that the present application adopts comprises the material of following molecular structure:

[0069]

[0070] Catalysts include substances with the following molecular structures:

[0071]

[0072] For specific use, first stir and mix the various materials of the film-forming components, and grind them on a sand mill until the particle size is 1-5 microns; add a curing agent and stir evenly, and coat the substrate, at 150 ° C Baking for half an hour, measure the resistance; the resistance is 6Ω; when working, the working voltage is 24V, the heat production is 110W, and the infrared wavelength of radiation is 4-14 microns.

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Abstract

The invention belongs to the field of heating materials and in particular relates to a graphene heating film. The graphene heating film comprises a film-forming component and a curing agent, and the usage amount of the curing agent can ensure that the film-forming component is cross-linked and cured into a film. The film-forming component comprises the following substances in percentage by mass: 1-5% of a dispersing agent, 3-8% of a catalyst, 33-61% of a conductive filler and 37-58% of a film-forming resin, wherein the dispersing agent comprises a substance having the following molecular structure, wherein the structural formula is as shown in the description. In the formula, n is an integer of 5-20; R1 is alkyl having 5-18 carbon atoms; and R2 is alkyl having 5-18 carbon atoms. The heating film is capable of uniformly heating, and the application safety performance is improved.

Description

technical field [0001] The invention belongs to the field of heating materials, and in particular relates to a graphene heating film. Background technique [0002] In the cold winter, especially in the north, not only indoors need to be heated, but people who do outdoor activities also need to be heated. Designing a heating material suitable for indoor and outdoor activities is an important way to solve heating. Among them, the heating film is an important technical means to solve the problem of heating. It can be cut arbitrarily according to the needs, and the scope of use is also extended from indoor to outdoor. Therefore, it is favored by consumers. [0003] The so-called heating film is a heat-conducting film with a thickness of 0.25-2 mm, which can be used by coating on fibers or plastic films; it can also use lamination technology to sandwich the coated film between two plastic films Between them, a film with a thickness of 1-3 mm is formed. This kind of heating fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L75/04C08L83/04C08L33/04C08L71/03C08L27/24C08L27/06C08K3/04C08K7/00C08J5/18
CPCC08J5/18C08J2327/24C08J2333/04C08J2363/00C08J2383/04C08J2427/06C08J2433/04C08J2463/00C08J2471/03C08J2475/04C08K3/04C08K7/00C08K2201/011C08K3/041C08K3/042
Inventor 高延敏朱苏瑜
Owner 江苏瑞卓新材料科技有限公司
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