Graphene oxide modified electric heating membrane and preparation method and application thereof

A graphene modification, electric heating film technology, applied in the direction of heating element materials, epoxy resin coatings, coatings, etc., can solve the problems of inability to retain the excellent properties of graphene, complex operation processes, and difficulty in fiber dispersion. Reduce the consumption of raw materials, simplify the process, improve the effect of the process

Inactive Publication Date: 2018-05-04
山东省圣泉生物质石墨烯研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the prior art, the patent application CN104219797A discloses a preparation method of a graphene electric heating film: firstly, graphene oxide is used to form a film, and then it is reduced, and a large amount of chemical reducing agent is used in the reduction process, and the toxicity is relatively high , the operation process is complex
Patent application CN105906832A discloses a preparation method of graphene water-based electrothermal film: because the surface of graphene is in an inert state, the interaction with other media is weak, and there is a strong van der Waals force between graphene sheets, which is very easy to occur Agglomeration, it is difficult to disperse evenly inside or on the surface of the fiber, and the excellent properties of graphene cannot be fully retained in the composite material. Therefore, the invention firstly performs hydrophilic treatment on graphene, and then adds a cellulose derivative solution for pre-dispersion. Although the use of chemical reagents is reduced, the pretreatment of graphene is complicated.

Method used

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  • Graphene oxide modified electric heating membrane and preparation method and application thereof
  • Graphene oxide modified electric heating membrane and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The first step: preparation of graphene oxide ink

[0062] Weigh 6 grams of graphene oxide, 3 grams of water, an appropriate amount of diluent (TMPTA), 1 gram of diazonium fluoroborate, 20 grams of novolac epoxy resin (Shengquan SQAN-201, as a binder), stir and mix evenly, Add 3 grams of isopropanol thereinto, mix and stir evenly, obtain the graphene oxide ink containing isopropanol, wherein, the concentration of graphene oxide is 1%.

[0063] The second step: printing of graphene oxide heating film

[0064] Graphene oxide ink containing isopropanol was printed on polyimide film by gravure printing. The printed thickness is 15 μm. Preliminary solidification results in a graphene oxide film.

[0065] Step 3: Irradiation of graphene oxide heating layer

[0066] Cobalt-60 ( 60 Co) γ-ray radiation source, adopting a dose rate of 300KGy / h, irradiating the graphene oxide film obtained in the second step for 1h, and drying the irradiated film in an oven at 160°C for 10min...

Embodiment 2-7

[0070] The only difference from Example 1 is that the irradiation dose is different, which are: 1KGy / h, 10KGy / h, 100KGy / h, 200KGy / h, 400KGy / h, 600KGy / h.

Embodiment 8-9

[0072] The difference from Example 1 is only that the amount of water added in the first step is different, which are respectively: 15 grams (Example 8), 30 grams (Example 9).

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Abstract

The invention provides a graphene oxide modified electric heating membrane and a preparation method and application thereof. According to the preparation method of the graphene oxide modified electricheating membrane, the electric heating membrane comprises a conductive layer and a heating layer which are stacked; the heating layer is a layer formed by irradiating printing ink containing grapheneoxide; the printing ink containing the graphene oxide at least comprises graphene oxide, water, a free radical catching agent and a resin binder. The preparation method does not need to introduce a chemical reducing agent with relatively high toxicity and a curing agent, pretreatment is not needed, and the method has the advantages of being environmentally friendly, simple in process, high in production efficiency and the like.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a graphene oxide modified electric heating film and its preparation method and application. Background technique [0002] The principle of the traditional electric heating film is to heat through the resistance wire, the heating area is small, the electric heating efficiency is low, the resistance wire is easy to oxidize for a long time, the safety is low, and the service life is short. Therefore, it is necessary to find a safe heating method to replace the traditional heating method to meet people's living needs. [0003] Graphene is composed of carbon atoms with SP 2 It is composed of monoatomic layers connected by hybridization, and is the thinnest, strongest and hardest material among the known materials discovered so far. The special structure of graphene makes it contain many unique physical and chemical properties, which make it have excellent electrical and thermal cond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/10C08J7/04C08J7/12C09D163/04C09D133/08C09D7/61C08L79/08
CPCC08J7/0427C08J7/123C08J2379/08C08J2433/08C08J2463/04C08K3/04H05B3/10
Inventor 唐地源张金柱张娟娟梁蒙蒙
Owner 山东省圣泉生物质石墨烯研究院
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