CN110041886A - A kind of novel graphene absorbing material and preparation method - Google Patents
A kind of novel graphene absorbing material and preparation method Download PDFInfo
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- CN110041886A CN110041886A CN201910423848.8A CN201910423848A CN110041886A CN 110041886 A CN110041886 A CN 110041886A CN 201910423848 A CN201910423848 A CN 201910423848A CN 110041886 A CN110041886 A CN 110041886A
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- graphene
- absorbing material
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- film
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 84
- 238000002360 preparation method Methods 0.000 title claims abstract description 33
- 239000011358 absorbing material Substances 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 15
- 238000003828 vacuum filtration Methods 0.000 claims abstract description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 9
- -1 graphite Alkene Chemical class 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 150000001336 alkenes Chemical class 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 5
- 230000005670 electromagnetic radiation Effects 0.000 description 4
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
Abstract
The invention belongs to technical field of composite materials more particularly to a kind of novel graphene absorbing material and preparation methods；Including the absorbing material and graphene film being laminated, the graphene film is prepared using vacuum filtration method；Graphene absorbing material in the present invention using graphene film and inhales the compound graphene suction wave material prepared of wave material, inhales wave material performance and be not affected by influence, simultaneously because graphene has outstanding heating conduction to greatly improve the heat dissipation performance for inhaling wave material entirety.
Description
Technical field
The invention belongs to technical field of composite materials more particularly to a kind of novel graphene absorbing material and preparation methods.
Background technique
With the gradually popularization and promotion of 5G technology, various includes wireless medical, net connection intelligent automobile, intelligence manufacture, intelligence
The popular applications such as intelligent electric power receive the universal concern of people, wherein the electromagnetic radiation pollution of corresponding generation is then got worse,
Electromagnetic radiation can not only interfere the normal work of electronic instrument and equipment, but also will affect the health of people.Currently based on
The above problem, main solution are that absorbing material, which has, absorbs that strong, bandwidth, thickness is thin, stability using absorbing material
The advantages such as good, pollution-free can convert thermal energy for electromagnetic radiation and consume and distribute, so that electromagnetic radiation bring be effectively reduced
Pollution.However, inhale wave material conversion process in will a large amount of heat of output and inhale wave material self-radiating performance it is poor, this will promote
The excessively high device working efficiency that eventually leads to of electronic component temperature is set to reduce or even be damaged.Therefore, it inhales wave material and goes back nothing at present
Method meets the electronic equipment that a batch bred by 5G science and technology proposes requirements at the higher level to electro-magnetic wave absorption and heat dissipation performance.
Graphene is the carbon atomic layer structure of monoatomic thickness, the New Two Dimensional carbon element crystal for being this year to be found.Stone
Black alkene is due to becoming materialogy neck with excellent heating conduction, mechanical property, electric property and unique nanostructure
The hot spot of domain research.Wherein, the thermal coefficient of graphene is up to 5300W/m.k, be prepare highly heat-conductive material desirable feedstock it
One.By the way that graphene and suction wave material is compound, it is whole that suction wave material can be substantially improved under conditions of not influencing to inhale wave material magnetic conductivity
The heat dissipation performance of body, enhancing are effectively dispersed the heat of its output, are had in communication electronics material while inhaling wave transformation efficiency
Extremely strong prospect of the application.However, graphene and the suction main preparation method of wave material are to add graphite merely in wave absorbing agent at present
Alkene, by be carbonized, be graphitized obtain graphite alkenes inhale wave film, and this method preparation graphite alkenes inhale wave film thermal coefficient compared with
Low, material surface poor flexibility and fragility are easily chipping when using with device, therefore the graphite alkenes of this method preparation are inhaled
Wave film receives certain obstruction in practical applications, and technology could be improved.
Summary of the invention
The purpose of the present invention is: overcome the deficiencies of the prior art and provide a kind of novel graphene absorbing material, the graphene
Wave suction composite material thermal coefficient with higher, stronger tensile property, hardness, heating conduction；
Another object of the present invention is: providing a kind of preparation method of novel graphene absorbing material, adopts in the preparation method
With graphene film and the compound graphene suction wave material prepared of wave material is inhaled, wave material performance is inhaled and is not affected by influence, simultaneously because graphite
Alkene has outstanding heating conduction to greatly improve the heat dissipation performance for inhaling wave material entirety.Using physics pressing in this method
Mode, different as the mode of additive from conventional graphite alkene, the graphene prepared, which inhales wave material surface, has stronger toughness
And hardness, it is applicable to all kinds of machinings and will not chipping or deformation.
In order to solve the above technical problems, The technical solution adopted by the invention is as follows:
A kind of novel graphene absorbing material, including the absorbing material and graphene film being laminated, the graphene film is used
Vacuum filtration method preparation.
Further, the graphene film is one of single-layer graphene, multi-layer graphene, graphene oxide.
A kind of preparation method of novel graphene absorbing material, the preparation method comprises the following steps: being taken out by vacuum
Graphene film is prepared in filter method, uses certain temperature and pressure by graphene film and homemade iron sial absorbing material pressure later
It closes, to obtain graphene Wave suction composite material.
Further, the self-control absorbing material is iron sial, with a thickness of 5-200 μm, magnetic conductivity 100-200.
Further, the graphene and absorbing material pressing pressure are 50N- 400N, pressing-in temp 30-200oC,
Pressing time is 0.5- 24 hours.
Further, the graphene Wave suction composite material with a thickness of 5-300 μm, magnetic conductivity 120-220 is laterally led
Hot coefficient is 400-1500 W/m.k.
It is using the beneficial effect of technical solution of the present invention:
1, the graphene absorbing material in the present invention inhales wave material using the graphene that graphene film and suction wave material are prepared, inhales wave
Material performance is not affected by influence, simultaneously because graphene has outstanding heating conduction to greatly improve and inhale dissipating for wave material entirety
Hot property.
2, the high thermal conductivity graphene Wave suction composite material in the present invention, by the way of physics pressing, with conventional graphite alkene
Mode as additive is different, and the graphene prepared, which inhales wave material surface, has stronger toughness and hardness, is applicable to each
Class machining and will not chipping or deformation, meanwhile, thermal coefficient is unaffected.
Specific embodiment
Below by specific embodiment, invention is further described in detail.Unless stated otherwise, embodiment party below
Technology used in formula is routine techniques known to those skilled in the art；Used instrument and equipment and reagent
Deng being that those skilled in the art can be by for example commercially available equal acquisitions of public approach.
Embodiment 1
A kind of novel graphene absorbing material, including the absorbing material and graphene film being laminated, graphene film uses vacuum
Suction method preparation.
A kind of above-mentioned novel graphene absorbing material the preparation method is as follows: using vacuum filtration method be prepared with a thickness of
The graphene film of 5um, by graphene glue film with 400N, 200oUnder the conditions of C and with a thickness of 5 μm, the suction wave material that magnetic conductivity is 100
Pressing obtains inhaling wave material with a thickness of 5 μm of graphene for 0.5 hour.Graphene by the preparation of above-mentioned preparation method inhales wave material magnetic conductance
Rate is 120, and thermal coefficient is 400 W/m.k.
Embodiment 2
One of the present embodiment novel graphene absorbing material is the same as embodiment 1.
Above-mentioned graphene Wave suction composite material the preparation method is as follows: using vacuum filtration method be prepared with a thickness of
The graphene film of 100um, by graphene glue film with 50N, 30oUnder the conditions of C and with a thickness of 100 μm, the suction wave that magnetic conductivity is 200
Material presses to be obtained inhaling wave material with a thickness of 80 μm of graphene for 24 hours.Graphene by the preparation of above-mentioned preparation method inhales wave material magnetic
Conductance is 220, and thermal coefficient is 2000 W/m.k.
Embodiment 3
High thermal conductivity graphene Wave suction composite material in the present embodiment is the same as embodiment 1.
Above-mentioned graphene Wave suction composite material the preparation method is as follows: using vacuum filtration method be prepared with a thickness of
The graphene film of 200um, by graphene glue film with 300N, 200oUnder the conditions of C and with a thickness of 200 μm, the suction that magnetic conductivity is 200
Wave material presses to be obtained inhaling wave material with a thickness of 300 μm of graphene for 12 hours.Graphene by the preparation of above-mentioned preparation method inhales wave
Material magnetic conductivity is 220, and thermal coefficient is 1500 W/m.k.
Embodiment 4
High thermal conductivity graphene Wave suction composite material in the present embodiment is the same as embodiment 1.
Above-mentioned graphene Wave suction composite material the preparation method is as follows: being prepared using vacuum filtration method with a thickness of 50um
Graphene film, by graphene glue film with 100N, 100oUnder the conditions of C and with a thickness of 80 μm, the suction wave material pressure that magnetic conductivity is 140
It closes and obtains within 8 hours inhaling wave material with a thickness of 75 μm of graphene.Graphene by the preparation of above-mentioned preparation method inhales wave material magnetic conductivity
It is 150, thermal coefficient is 1300 W/m.k.
Embodiment 5
High thermal conductivity graphene Wave suction composite material in the present embodiment is the same as embodiment 1.
Above-mentioned graphene Wave suction composite material the preparation method is as follows: being prepared using vacuum filtration method with a thickness of 30um
Graphene film, by graphene glue film with 200N, 150oUnder the conditions of C and with a thickness of 70 μm, the suction wave material pressure that magnetic conductivity is 140
It closes and obtains within 15 hours inhaling wave material with a thickness of 30 μm of graphene.Graphene by the preparation of above-mentioned preparation method inhales wave material magnetic conductivity
It is 140, thermal coefficient is 700 W/m.k.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.It is all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should all be included in the protection scope of the present invention.This
The technical scope of item invention is not limited to the contents of the specification, it is necessary to its technology is determined according to scope of the claims
Property range.
Claims (6)
1. a kind of novel graphene absorbing material, it is characterised in that: described including the absorbing material and graphene film being laminated
Graphene film is made using vacuum filtration method.
2. a kind of novel graphene absorbing material according to claim 1, it is characterised in that: the graphene is single layer stone
One of black alkene, multi-layer graphene, graphene oxide.
3. such as a kind of preparation method of novel graphene absorbing material of any of claims 1-2, it is characterised in that:
The preparation method comprises the following steps: graphene film is prepared by vacuum filtration method, uses certain temperature and pressure later
Power presses graphene glue film and absorbing material, to obtain graphene Wave suction composite material.
4. a kind of preparation method of novel graphene absorbing material according to claim 3, it is characterised in that: the suction wave
Material is iron sial, with a thickness of 5-200 microns, magnetic conductivity 100-200.
5. a kind of preparation method of novel graphene absorbing material according to claim 3, it is characterised in that: the graphite
Alkene film and absorbing material pressing pressure are 50N- 400N, pressing-in temp 30-200oC, pressing time are 0.5- 24 hours.
6. a kind of preparation method of novel graphene absorbing material according to claim 3, it is characterised in that: the graphite
Alkene Wave suction composite material with a thickness of 5-300 μm, magnetic conductivity 120-220, lateral thermal coefficient is 400-1500 W/m.k.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910423848.8A CN110041886A (en) | 2019-05-21 | 2019-05-21 | A kind of novel graphene absorbing material and preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910423848.8A CN110041886A (en) | 2019-05-21 | 2019-05-21 | A kind of novel graphene absorbing material and preparation method |
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| CN110041886A true CN110041886A (en) | 2019-07-23 |
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| CN201910423848.8A Pending CN110041886A (en) | 2019-05-21 | 2019-05-21 | A kind of novel graphene absorbing material and preparation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112265292A (en) * | 2020-08-21 | 2021-01-26 | 成都飞机工业（集团）有限责任公司 | Forming method of graphene wave-absorbing composite material skin |
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2019
- 2019-05-21 CN CN201910423848.8A patent/CN110041886A/en active Pending
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112265292A (en) * | 2020-08-21 | 2021-01-26 | 成都飞机工业（集团）有限责任公司 | Forming method of graphene wave-absorbing composite material skin |
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Application publication date: 20190723 |