CN106584968A - Graphene composite material high in heat dissipation property - Google Patents
Graphene composite material high in heat dissipation property Download PDFInfo
- Publication number
- CN106584968A CN106584968A CN201611235908.6A CN201611235908A CN106584968A CN 106584968 A CN106584968 A CN 106584968A CN 201611235908 A CN201611235908 A CN 201611235908A CN 106584968 A CN106584968 A CN 106584968A
- Authority
- CN
- China
- Prior art keywords
- support
- support ring
- thickness
- composite material
- reaction cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
- B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1808—Handling of layers or the laminate characterised by the laying up of the layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/302—Conductive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
Abstract
The invention relates to a graphene composite material high in heat dissipation property. A preparation method of the material includes the steps that firstly, a SiC substrate is placed in a chemical vapor deposition reaction cavity, the absolute vacuum degree of the chemical vapor deposition reaction cavity is controlled to be larger than 104 Pa, and a silicon carbide epitaxial layer with the thickness of 4-8 micrometers grows on the surface of the SiC substrate at 1200-1400 DEG C; secondly, the temperature of the chemical vapor deposition reaction cavity is controlled to be reduced to 1000 DEG C, and then increased to 1600 DEG C in the inert gas atmosphere, so that the structure of the silicon carbide epitaxial layer is decomposed and reconstructed, and a multi-layer graphene membrane is obtained on the SiC substrate; thirdly, the multi-layer graphene membrane is stripped, at least two layers of multi-layer graphene membranes are stacked and pressed, and the graphene composite material can be obtained. The material is good in flexibility and good in heat dissipation property, and the service life is greatly prolonged.
Description
Technical field
The present invention relates to a kind of graphene composite material, and in particular to a kind of high heat dispersion graphene composite material.
Background technology
Graphite is a kind of allotrope of elemental carbon, and the periphery of each carbon atom links and writes the other three carbon atom (row
Row mode is in cellular multiple hexagons) with Covalent bonding together, constitute covalent molecule.Graphite belongs to typical layer structure,
Carbon atom aligned in layers, is equidistantly connected between each carbon and adjacent carbon, and the carbon in each layer presses the arrangement of hexagonal ring shape, up and down phase
The carbon hexagonal ring of adjacent bed is stacked after the mutual displacement in parallel wire side direction again and forms layer structure.Due to its special construction, stone
Ink has heat-resisting quantity, electric conductivity, heat conductivity, lubricity, chemical stability, plasticity and thermal shock resistance etc., can be used as resistance to
Fiery material, lubriation material, conductive heat conducting material etc. are applied in the industry such as metallurgy, chemical industry, machinery, electronics, atomic energy and national defence.
Its heat conductivity exceedes the metal materials such as steel, ferrum, lead.But heat conductivity is raised with temperature and reduced, at very high temperatures, graphite
Can be with into insulator.Graphite film material surmounts the heat conductivility of metal material because of having, also with as organic plasticss
Plasticity, and the characteristic of the surface of solids can be coated in, in all electronical display products if desired for radiating and need heating
Electronic devices and components field is obtained for and is widely applied.
Existing graphite film simple structure, toughness be not good, for a long time using easy fracture, it is impossible to ensures service life, also can
Affect effect of product.
The content of the invention
The present invention proposes a kind of high heat dispersion graphene composite material for the problems referred to above, and pliability is good, radiating effect
It is really good, service life greatly improved.
Specific technical scheme is as follows：
A kind of high heat dispersion graphene composite material, its preparation method is：
(1) SiC substrates are placed in chemical vapour deposition reaction cavity, control the absolute of chemical vapour deposition reaction cavity
Vacuum is more than 104 handkerchiefs, grows the silicon carbide epitaxial layers of 4-8 microns at 1200-1400 DEG C in SiC substrate surfaces；
(2) temperature for controlling chemical vapour deposition reaction cavity is reduced to 1000 DEG C, to chemistry under atmosphere of inert gases
Cvd chamber body is heated to 1600 DEG C from 1000 DEG C, makes silicon carbide epitaxial layers STRUCTURE DECOMPOSITION and restructuring, in SiC bases
Multi-layer graphene film is obtained on bottom；
(3) multi-layer graphene film is peeled off, is overlapped mutually using the multi-layer graphene film of at least two-layer, pressing and forming
Obtain graphene composite material.
A kind of above-mentioned high heat dispersion graphene composite material, wherein, two are provided with the graphene composite material
One support bar and second support bar, second support bar are arranged between two the first support bars, and described first supports
Bar includes two the first support feets and the first support ring being fixed between the first support feet, and the cross sectional shape of the first support ring is
Arc-shaped structure, the thickness of the first support ring are gradually reduced from both sides to centre, and the outermost thickness of the first support ring is h3, the
The thickness of one support ring center is h4, h3=1.5*h4；Second support bar includes two the second support feets and is fixed on
The second support ring between second support feet, the cross sectional shape of the second support ring is arc-shaped structure, the thickness of the second support ring
Gradually increase from both sides to centre, the outermost thickness of the second support ring is h5, and the thickness of the second support ring center is h6, h6
=1.5*h5；The opening direction of first support ring is contrary with the opening direction of the second support ring.
Beneficial effects of the present invention are：
Multiple multi-layer graphene films are laminated fixation by the present invention, it is fixed more firmly, Graphene effect propety is splendid
Heat sink material, serve radiating effect well, realize quick conductive, production efficiency greatly improved, reduce cost,
Have wide range of applications, can be widely used for equipment cooling.
Description of the drawings
Fig. 1 is sectional view of the present invention.
Fig. 2 is the first support bar structure chart of the invention.
Fig. 3 is the second support bar structure chart of the invention.
Specific embodiment
To make technical scheme become apparent from clearly, the present invention is described further below in conjunction with the accompanying drawings,
Any technical characteristic to technical solution of the present invention carries out the scheme that equivalencing and conventional reasoning draw and each falls within guarantor of the present invention
Shield scope.
Reference
Multi-layer graphene film 1, the first support bar 2, the second support bar 3, the first support feet 4, the first support ring 5, second
Spike 6, the second support ring 7.
Embodiment one：
A kind of high heat dispersion graphene composite material as shown in the figure, its preparation method is：
(1) SiC substrates are placed in chemical vapour deposition reaction cavity, control the absolute of chemical vapour deposition reaction cavity
Vacuum is more than 104 handkerchiefs, grows the silicon carbide epitaxial layers of 4-8 microns at 1200-1400 DEG C in SiC substrate surfaces；
(2) temperature for controlling chemical vapour deposition reaction cavity is reduced to 1000 DEG C, to chemistry under atmosphere of inert gases
Cvd chamber body is heated to 1600 DEG C from 1000 DEG C, makes silicon carbide epitaxial layers STRUCTURE DECOMPOSITION and restructuring, in SiC bases
Multi-layer graphene film 1 is obtained on bottom；
(3) multi-layer graphene film is peeled off, two the first support bars 2 and second support bar 3 is placed on into two-layer many
Between layer graphene film, the pressing and forming under the pressure of 1t.
Second support bar is arranged between two the first support bars, and first support bar includes two first supports
Foot 4 and the first support ring 5 being fixed between the first support feet, the cross sectional shape of the first support ring is arc-shaped structure, first
The thickness of support ring is gradually reduced from both sides to centre, the outermost thickness of the first support ring be h1, the first support ring center
Thickness be h2, h1=1.5*h2；Second support bar includes two the second support feets 6 and is fixed between the second support feet
The second support ring 7, the cross sectional shape of the second support ring is arc-shaped structure, the thickness of the second support ring from both sides to centre by
Cumulative big, the outermost thickness of the second support ring is h3, and the thickness of the second support ring center is h4, h4=1.5*h3；It is described
The opening direction of the first support ring is contrary with the opening direction of the second support ring.
Embodiment two
A kind of high heat dispersion graphene composite material, its preparation method is：
(1) SiC substrates are placed in chemical vapour deposition reaction cavity, control the absolute of chemical vapour deposition reaction cavity
Vacuum is more than 104 handkerchiefs, grows the silicon carbide epitaxial layers of 4-8 microns at 1200-1400 DEG C in SiC substrate surfaces；
(2) temperature for controlling chemical vapour deposition reaction cavity is reduced to 1000 DEG C, to chemistry under atmosphere of inert gases
Cvd chamber body is heated to 1600 DEG C from 1000 DEG C, makes silicon carbide epitaxial layers STRUCTURE DECOMPOSITION and restructuring, in SiC bases
Multi-layer graphene film is obtained on bottom；
(3) multi-layer graphene film is peeled off, four layers of multi-layer graphene film is superimposed with each other, by two the first support bars and
One the second support bar is placed between the two-layer multi-layer graphene film of centre, the pressing and forming under the pressure of 1t.
Second support bar is arranged between two the first support bars, and first support bar includes two first supports
Foot and the first support ring being fixed between the first support feet, the cross sectional shape of the first support ring is arc-shaped structure, first
The thickness of pushing out ring is gradually reduced from both sides to centre, and the outermost thickness of the first support ring is h1, the first support ring center
Thickness is h2, h1=1.5*h2；Second support bar includes two the second support feets and is fixed between the second support feet
Second support ring, the cross sectional shape of the second support ring is arc-shaped structure, the thickness of the second support ring from both sides to it is middle gradually
Increase, the outermost thickness of the second support ring are h3, and the thickness of the second support ring center is h4, h4=1.5*h3；Described
The opening direction of one support ring is contrary with the opening direction of the second support ring.
Multiple multi-layer graphene films are laminated fixation by the present invention, it is fixed more firmly, Graphene effect propety is splendid
Heat sink material, serve radiating effect well, realize quick conductive, production efficiency greatly improved, reduce cost,
Have wide range of applications, can be widely used for equipment cooling.
Mouth of the present invention first support bar in opposite direction and the second support bar, the first support bar and the second support bar are with copper
It is made up of material, has both increased heat dispersion, is improved toughness and intensity again, improve service life.
Claims (2)
1. a kind of high heat dispersion graphene composite material, it is characterized by, its preparation method is：
(1) SiC substrates are placed in chemical vapour deposition reaction cavity, control the absolute vacuum of chemical vapour deposition reaction cavity
Degree grows the silicon carbide epitaxial layers of 4-8 microns more than 104 handkerchiefs in SiC substrate surfaces at 1200-1400 DEG C；
(2) temperature for controlling chemical vapour deposition reaction cavity is reduced to 1000 DEG C, to chemical gaseous phase under atmosphere of inert gases
Deposition reaction cavity is heated to 1600 DEG C from 1000 DEG C, makes silicon carbide epitaxial layers STRUCTURE DECOMPOSITION and restructuring, in SiC substrates
Obtain multi-layer graphene film；
(3) multi-layer graphene film is peeled off, is overlapped mutually using the multi-layer graphene film of at least two-layer, pressing and forming is obtained
Graphene composite material.
2. a kind of high heat dispersion graphene composite material as claimed in claim 1, it is characterized by, the Graphene composite wood
Be provided with two the first support bars and second support bar in material, second support bar be arranged on two the first support bars it
Between, first support bar includes two the first support feets and the first support ring being fixed between the first support feet, first
The cross sectional shape of pushing out ring is arc-shaped structure, and the thickness of the first support ring is gradually reduced from both sides to centre, and the first support ring is most
The thickness in outside is h3, and the thickness of the first support ring center is h4, h3=1.5*h4；Second support bar includes two
Two support feets and the second support ring being fixed between the second support feet, the cross sectional shape of the second support ring is arc-shaped structure,
The thickness of the second support ring gradually increases from both sides to centre, and the outermost thickness of the second support ring is h5, in the second support ring
Thickness at the heart is h6, h6=1.5*h5；The opening direction of first support ring is contrary with the opening direction of the second support ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611235908.6A CN106584968A (en) | 2016-12-28 | 2016-12-28 | Graphene composite material high in heat dissipation property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611235908.6A CN106584968A (en) | 2016-12-28 | 2016-12-28 | Graphene composite material high in heat dissipation property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106584968A true CN106584968A (en) | 2017-04-26 |
Family
ID=58603038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611235908.6A Pending CN106584968A (en) | 2016-12-28 | 2016-12-28 | Graphene composite material high in heat dissipation property |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106584968A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1454277A (en) * | 2000-03-30 | 2003-11-05 | 梅森奈特公司 | Composite building components, and method of making same |
| CN1516645A (en) * | 2001-06-15 | 2004-07-28 | ����-���ء���˹��ɭ | Laminates of films and methods and apparatus for their manufacture |
| CN101052483A (en) * | 2004-08-31 | 2007-10-10 | 奥里加米工业股份有限公司 | Bend line with bend controlling grooves and method |
| CN105441902A (en) * | 2014-08-12 | 2016-03-30 | 中国科学院苏州纳米技术与纳米仿生研究所 | Epitaxial silicon carbide-graphene composite film preparation method |
-
2016
- 2016-12-28 CN CN201611235908.6A patent/CN106584968A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1454277A (en) * | 2000-03-30 | 2003-11-05 | 梅森奈特公司 | Composite building components, and method of making same |
| CN1516645A (en) * | 2001-06-15 | 2004-07-28 | ����-���ء���˹��ɭ | Laminates of films and methods and apparatus for their manufacture |
| CN101052483A (en) * | 2004-08-31 | 2007-10-10 | 奥里加米工业股份有限公司 | Bend line with bend controlling grooves and method |
| CN105441902A (en) * | 2014-08-12 | 2016-03-30 | 中国科学院苏州纳米技术与纳米仿生研究所 | Epitaxial silicon carbide-graphene composite film preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108430919B (en) | Carbon nanotube bonding sheet and method for producing carbon nanotube bonding sheet | |
| JPWO2014123036A1 (en) | Silicon carbide-tantalum carbide composite and susceptor | |
| TWI466847B (en) | Method for manufacturing ceramic sintered body, ceramic sintered body and ceramic heater | |
| US9284196B2 (en) | Graphene-like nanosheet structure network on a substrate and the method for forming the same | |
| CA2996898C (en) | Thermoelectric conversion element and thermoelectric conversion module | |
| CN106494028A (en) | A kind of flexible multi-layered graphene composite film and preparation method thereof | |
| CN104029461A (en) | Graphene/carbon nano tube/graphite film composite material and preparation method thereof | |
| JP6424036B2 (en) | Graphite bonding method and laminate for bonding graphite | |
| CN105883779B (en) | A kind of scalable process of CVD growth large-area graphene | |
| CN100439288C (en) | Sialon quasi monodimension nanometer material and its preparation method | |
| CN106584968A (en) | Graphene composite material high in heat dissipation property | |
| CN202902970U (en) | Delanium graphite heat dissipation base plate | |
| JP2018131344A (en) | Method for producing carbon nanotube composite, carbon nanotube composite and anisotropic carbon nanotube composite | |
| KR20120088458A (en) | Silicon carbide sintered body and method for manufacturing the same | |
| JP5278737B2 (en) | Manufacturing method of heat dissipation material | |
| KR20140108829A (en) | Method for separating graphene thin film by roll to roll | |
| CN206561654U (en) | A kind of flexible multi-layered graphene composite film | |
| EP3532539B1 (en) | Composite material and method of forming same, and electrical component including composite material | |
| Jiang et al. | Flexible Full-Surface Conformal Encapsulation for Each Fiber in Graphene Glass Fiber Fabric against Thermal Oxidation | |
| KR102428088B1 (en) | Heat dissipation sheet using graphene-graphite composite and manufacturing method thereof | |
| KR20140127954A (en) | SiC THIN FILM DEPOSITION METHOD AND SUSCEPTOR OF THE SAME | |
| TWI326279B (en) | Ceramic material and method for manufacturing the same | |
| KR102659221B1 (en) | Graphene structure and a method for producing a graphene structure | |
| JP5252562B2 (en) | Manufacturing method of heat dissipation sheet | |
| CN104610931B (en) | It is a kind of to prepare the high method for leading graphite film material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20230228 |