CN103108531A - Three-dimensional net-shaped high thermal conductivity graphite framework structure and manufacture method thereof - Google Patents
Three-dimensional net-shaped high thermal conductivity graphite framework structure and manufacture method thereof Download PDFInfo
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- CN103108531A CN103108531A CN2012104934548A CN201210493454A CN103108531A CN 103108531 A CN103108531 A CN 103108531A CN 2012104934548 A CN2012104934548 A CN 2012104934548A CN 201210493454 A CN201210493454 A CN 201210493454A CN 103108531 A CN103108531 A CN 103108531A
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- graphite
- thermal conductivity
- dimensional netted
- skeleton structure
- high thermal
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 54
- 239000010439 graphite Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title description 5
- 239000012528 membrane Substances 0.000 claims description 13
- 229920000642 polymer Polymers 0.000 claims description 11
- 238000003475 lamination Methods 0.000 claims description 10
- 229920002521 macromolecule Polymers 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 8
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004811 fluoropolymer Substances 0.000 claims description 3
- 229920002313 fluoropolymer Polymers 0.000 claims description 3
- 238000005087 graphitization Methods 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 230000001788 irregular Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 21
- 150000001875 compounds Chemical class 0.000 abstract 1
- -1 Merlon Polymers 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002480 polybenzimidazole Polymers 0.000 description 1
- 229920002577 polybenzoxazole Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229960001124 trientine Drugs 0.000 description 1
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- Carbon And Carbon Compounds (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
A three-dimensional net-shaped high thermal conductivity graphite framework structure comprises at least two layers of graphite heat conduction films (12) and is characterized in that the number of connection points between every two adjacent layers of the graphite heat conduction films (12) is more than 5, and the distance between the every two connection points is more than 1mm. The thermal conductivity of the graphite heat conduction films (12) is 400-2400W/mK, and the thickness of each graphite heat conduction film (12) is 5-100 microns. The three-dimensional net-shaped high thermal conductivity graphite framework structure has very high thermal conductivity on the three-dimensional direction, and heat conduction materials have high thermal conductivity and strong mechanical strength. The requirement of fast heat conduction can be met, and the design requirement of a certain mechanical structure can be met. The three-dimensional net-shaped high thermal conductivity graphite framework structure can serve as a framework to be used with other materials in a compound mode, and whole thermal conductivity is improved.
Description
Technical field
The invention belongs to the Heat Conduction Material field, especially about a kind of graphite framework material and manufacture method that has high thermal conductivity on three-dimensional.
Background technology
Along with the fast development of electronic product in recent years, intelligent electronic device as smart mobile phone and intelligent television, becomes an inevitable trend, and in order to satisfy the client to the requirements at the higher level of product, can integrated increasing function on electronic equipment.Its result must be the more and more faster speed of service of electronic equipment, increasing battery reserves, thus bring larger caloric value and the temperature of Geng Gao.High temperature not only can affect the operation stability of equipment, the speed of service, and battery capacity more can be brought the reduction on equipment life.
In the display and lighting field, LED replaces conventional display lighting device, has been an irreversible trend.No matter in liquid crystal display, or in illumination, using more, high-power LED is the target that each large producer pursues jointly.But the caloric value of high-power LED itself is huge, there is impact significantly in itself life-span, and existing heat dissipating method can not solve its heat dissipation problem.
Metal is because its good heat conductivility is used widely, as silver (420 W/mK), copper (402 W/mK), gold (318W/mK), aluminium (237 W/mK) etc.Wherein copper and aluminium is because price advantage, uses the most generally, and as the copper radiating tube in notebook, the aluminium matter heat conduction on LCD display is heat sink.But along with miniaturization day by day and the power extension of electronic equipment, existing heat dissipation metal device has been difficult to satisfy the heat radiation requirement.And a kind of appearance of the novel material with high thermal conductivity has made up the blank of this respect.This high thermal conductivity materials is the film material of graphite material, and its thermal conductivity can reach 2000 W/mK.This graphite guide hotting mask in use directly is bonded in thermal source, and heat is diffused into rapidly whole heat conducting film surface, increasing heat radiation area, thus reach the effect of quick heat radiating.But the high thermal conductivity of this graphite guide hotting mask is mainly reflected in the xy direction parallel with the surface, and in the vertical direction of film material, its thermal conductivity is only at 5-10 W/mK.
Summary of the invention
For above deficiency, the object of the present invention is to provide a kind of three-dimensional netted high conductive graphite skeleton structure and preparation method thereof, be that the graphite heat conducting film is carried out structural design and making, can realize high thermal conductivity on three-dimensional, increase radiating effect and expand the field of its application.
Technical scheme of the present invention is achieved in the following ways: a kind of three-dimensional netted high conductive graphite skeleton structure, comprise and be provided with at least two-layer graphite guide hotting mask (12) the three-dimensional netted skeleton structure that forms, it is characterized in that: the tie point between the every adjacent two layers of described graphite guide hotting mask (12) is greater than 5, and the distance between tie point is greater than 1mm; The thermal conductivity of described graphite guide hotting mask (12) is 400-2400 W/mK; Thickness is between 5-1000 μ m.
The described adjacent two layers graphite guide of structure hotting mask (12) is filled with the composition (13) of high molecular polymer, and the composition of described high molecular polymer (13) comprises at least a following high molecular polymer that is selected from: polyester, polyolefin, ethene one vinyl acetate, Merlon, polyurethane, silica gel, fluoropolymer or epoxy resin.
A kind of manufacture method of three-dimensional netted high conductive graphite skeleton structure is with two-layer above macromolecule membrane lamination, is lined with graphite block between every two membranes, at 1-20Kg/cm
2Under the high temperature of pressure, 2000-3400 ℃, insulation 0.5-5 hour, speed cool to room temperature with 20 ℃/minute, the position of adjacent macromolecule membrane contact is combined under the condition of pressure and high temperature and graphitization, the position of contact does not combine, form the graphite film lamination after graphite block is extracted out, after the graphite film lamination launches, its cross section is three-dimensional netted skeleton structure.
To be filled with high molecular polymer 13 compositions between described three-dimensional netted skeleton structure, described high molecular polymerization compositions comprises at least a following high molecular polymer that is selected from: the combination of polyester, polyolefin, ethene one vinyl acetate, Merlon, polyurethane, silica gel, fluoropolymer, epoxy resin and two or more above-mentioned high molecular polymers.
The cross section that described graphite film launches to form is the tridimensional network of rectangle, hexagon, circle or irregular polygon.
The present invention, very high thermal conductivity is arranged on three-dimensional, Heat Conduction Material has high thermal conductivity and stronger mechanical strength, not only can satisfy quick heat conducting function, can also satisfy certain mechanical structure designing requirement, can also use as skeleton and other Material cladding, improve whole thermal conductivity.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is macromolecule membrane schematic diagram of the present invention.
Fig. 3 is the manufacture method of three-dimensional netted high conductive graphite framework material.
Fig. 4 is that the shape of a mesh in three-dimensional netted high conductive graphite framework material cross section is square.
Fig. 5 is that the shape of a mesh in three-dimensional netted high conductive graphite framework material cross section is hexagon.
Fig. 6 is that the shape of a mesh in three-dimensional netted high conductive graphite framework material cross section is for circular.
Embodiment
A kind of three-dimensional netted high conductive graphite skeleton structure comprises: (a) be provided with at least two-layer graphite guide hotting mask 12 tridimensional network that forms, the tie point between every adjacent two layers graphite guide hotting mask is greater than 5, and the distance between tie point is greater than 1mm; (b) thermal conductivity of graphite guide hotting mask is 400-2400 W/mK; Thickness is between 5-1000 μ m.
The high conductive graphite skeleton structure of tridimensional network, can packing material in its cancellated mesh also packing material not, can be decided according to the actual requirements.
Embodiment 1:
Shown in Figure 1, a kind of three-dimensional netted high conductive graphite skeleton structure that is filled with high molecular polymer.Be comprised of ten layers of graphite guide hotting mask 12, the tie point between described adjacent two layers graphite guide hotting mask is 9, and the distance between tie point is greater than 1mm; The thermal conductivity of graphite guide hotting mask is 400-2400 W/mK; Thickness is between 5-1000 μ m.In the present embodiment, adjacent two layers graphite guide hotting mask (12) is filled with the high molecular polymerization compositions (13) of polyester.
As shown in Figure 2, be that the present invention makes graphite guide hotting mask macromolecule membrane used 10 schematic diagrames.Graphite film 12 is by layer high molecule film 10 laminations and high temperature graphitization gained, described macromolecule membrane 10 comprises at least a following high molecular polymer that is selected from: polyester, Merlon, polyurethane, polyimides, polypropylene is fine, polyamide, polyoxadiazoles, polybenzoxazoles, polybenzothiozole, polybenzimidazoles, epoxy resin.
As shown in Figure 3, be that the cross section shape of a mesh is the three-dimensional netted high-heat conductivity graphite material manufacture method of rectangle.Pad take in the cross section as foursquare fine graphite piece 11 between macromolecule membrane 10, and the length of side is 5mm.Under the gravity of graphite block itself, the cross section of macromolecule membrane is pressed into rectangle, and macromolecule membrane 10 and graphite block 11 laminated construction are applied with 10Kg/cm
2Power, be heated to 2600 ℃ and be incubated 5 hours, afterwards with the speed cool to room temperature of 20 ℃/minute.The position of adjacent polymeric membrane contact combines under the condition of pressure and high temperature, and the position of contact does not combine.After graphite block is extracted out, form graphite film 12 laminations, it is the three-dimensional netted skeleton structure of rectangle that graphite film 12 laminations launch to form cross section.
As shown in Figure 4, be that the shape of a mesh in three-dimensional netted high conductive graphite framework material cross section is square.
As shown in Figure 5, be that the shape of a mesh of the cross section of three-dimensional netted high conductive graphite framework material is hexagon.
As shown in Figure 6, be that the shape of a mesh in three-dimensional netted high conductive graphite framework material cross section is for circular.
Bisphenol A epoxide resin curing agent triethylene tetramine is mixed with the ratio of 99.5:0.5, the gained mixture is that low viscosity is liquid, can flow and be filled in mesh as Fig. 4, Fig. 5, three-dimensional netted high conductive graphite framework material shown in Figure 6, be heated to 60o and kept 1 hour, forming the block materials that comprises high conductive graphite mesh skeleton.
Claims (4)
1. three-dimensional netted high conductive graphite skeleton structure, comprise that being provided with at least two-layer graphite guide hotting mask (12) forms three-dimensional netted skeleton structure, it is characterized in that: the tie point between the every adjacent two layers of described graphite guide hotting mask (12) is greater than 5, and the distance between tie point is greater than 1mm; The thermal conductivity of described graphite guide hotting mask (12) is 400-2400 W/mK; Thickness is between 5-1000 μ m.
2. a kind of three-dimensional netted high conductive graphite skeleton structure according to claim 1, it is characterized in that: the composition (13) that is filled with high molecular polymer in tridimensional network that forms between described adjacent two layers graphite guide hotting mask (12), the composition of described high molecular polymer (13) comprise at least a following high molecular polymer that is selected from: polyester, polyolefin, ethene one vinyl acetate, Merlon, polyurethane, silica gel, fluoropolymer or epoxy resin.
3. the method for the three-dimensional netted high conductive graphite skeleton structure of making according to claim 1, is characterized in that: with two-layer above macromolecule membrane (10) lamination, be lined with graphite block (11) between every two membranes, at 1-20Kg/cm
2Under the high temperature of pressure, 2000-3400 ℃, insulation 0.5-5 hour, speed cool to room temperature with 20 ℃/minute, the position of adjacent macromolecule membrane contact is combined and graphitization, the position of contact does not combine, form graphite film (12) lamination after graphite block is extracted out, after graphite film (12) lamination launches, its cross section is three-dimensional netted skeleton structure.
4. the method for the three-dimensional netted high conductive graphite skeleton structure of making according to claim 3 is characterized in that: the cross section that described graphite film (12) lamination launches to form is rectangle, hexagon, circle or irregular polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210493454.8A CN103108531B (en) | 2012-11-28 | 2012-11-28 | Three-dimensional net-shaped high thermal conductivity graphite framework structure and manufacture method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210493454.8A CN103108531B (en) | 2012-11-28 | 2012-11-28 | Three-dimensional net-shaped high thermal conductivity graphite framework structure and manufacture method thereof |
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| Publication Number | Publication Date |
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| CN103108531A true CN103108531A (en) | 2013-05-15 |
| CN103108531B CN103108531B (en) | 2015-03-18 |
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| CN201210493454.8A Expired - Fee Related CN103108531B (en) | 2012-11-28 | 2012-11-28 | Three-dimensional net-shaped high thermal conductivity graphite framework structure and manufacture method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106827698A (en) * | 2016-12-28 | 2017-06-13 | 镇江博昊科技有限公司 | A kind of continuous coiled coiled material of electrographite guided membrane high |
| CN108017911A (en) * | 2017-12-06 | 2018-05-11 | 中国科学院山西煤炭化学研究所 | A kind of heat conduction connecting material and preparation method based on graphite/polymer complex structure |
| CN111897179A (en) * | 2020-08-25 | 2020-11-06 | 中国科学院长春光学精密机械与物理研究所 | Efficient heat dissipation device for movable part of space camera |
| WO2021017151A1 (en) * | 2019-07-30 | 2021-02-04 | 武汉华星光电半导体显示技术有限公司 | Heat dissipation structure for display panel, preparation method therefor and application thereof |
| CN114007370A (en) * | 2020-07-27 | 2022-02-01 | 杜邦电子公司 | Heat sink for electronic device |
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| CN101458049A (en) * | 2008-12-02 | 2009-06-17 | 王晓山 | Composite graphite heat conducting radiation fins |
| CN102559149A (en) * | 2010-12-31 | 2012-07-11 | 上海杰远环保科技有限公司 | Expanding and high heat dissipation material and preparing method thereof |
| CN102781876A (en) * | 2009-12-31 | 2012-11-14 | 西格里碳素欧洲公司 | Graphite-containing moulded body and method for the production thereof |
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2012
- 2012-11-28 CN CN201210493454.8A patent/CN103108531B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200990750Y (en) * | 2006-12-27 | 2007-12-12 | 华为技术有限公司 | A radiating structure and equipment including the same radiating structure |
| CN101458049A (en) * | 2008-12-02 | 2009-06-17 | 王晓山 | Composite graphite heat conducting radiation fins |
| CN102781876A (en) * | 2009-12-31 | 2012-11-14 | 西格里碳素欧洲公司 | Graphite-containing moulded body and method for the production thereof |
| CN102559149A (en) * | 2010-12-31 | 2012-07-11 | 上海杰远环保科技有限公司 | Expanding and high heat dissipation material and preparing method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106827698A (en) * | 2016-12-28 | 2017-06-13 | 镇江博昊科技有限公司 | A kind of continuous coiled coiled material of electrographite guided membrane high |
| CN108017911A (en) * | 2017-12-06 | 2018-05-11 | 中国科学院山西煤炭化学研究所 | A kind of heat conduction connecting material and preparation method based on graphite/polymer complex structure |
| CN108017911B (en) * | 2017-12-06 | 2020-08-28 | 中国科学院山西煤炭化学研究所 | Heat-conducting connecting material based on graphite/polymer composite structure and preparation method |
| WO2021017151A1 (en) * | 2019-07-30 | 2021-02-04 | 武汉华星光电半导体显示技术有限公司 | Heat dissipation structure for display panel, preparation method therefor and application thereof |
| CN114007370A (en) * | 2020-07-27 | 2022-02-01 | 杜邦电子公司 | Heat sink for electronic device |
| CN111897179A (en) * | 2020-08-25 | 2020-11-06 | 中国科学院长春光学精密机械与物理研究所 | Efficient heat dissipation device for movable part of space camera |
| CN111897179B (en) * | 2020-08-25 | 2021-07-16 | 中国科学院长春光学精密机械与物理研究所 | Efficient heat dissipation device for movable part of space camera |
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| CN103108531B (en) | 2015-03-18 |
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