CN203855543U - Thermally conductive graphite composite film - Google Patents
Thermally conductive graphite composite film Download PDFInfo
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- CN203855543U CN203855543U CN201420174341.6U CN201420174341U CN203855543U CN 203855543 U CN203855543 U CN 203855543U CN 201420174341 U CN201420174341 U CN 201420174341U CN 203855543 U CN203855543 U CN 203855543U
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- film
- graphite
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- thermally conductive
- silicone oil
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Abstract
The utility model relates to a thermally conductive graphite composite film. The composite film is formed by compounding four layers of structures, namely, a PET film, a graphite film, a silicone rubber and a silicone oil paper, wherein the silicone oil paper is located at the bottommost layer as a centrifugal layer and the silicone rubber as an adhesive layer, the graphite layer as a thermally conductive layer and the PET film as a protective layer are sequentially arranged on the silicone oil paper. According to the thermally conductive graphite composite film, since an artificially synthetic graphite film of which the thermal conductivity is 1200-1900W/m.k is adopted as a thermally conductive layer, the thermal conductivity of the composite film can be significantly improved.
Description
Technical field
The utility model relates to a kind of heat conduction composite membrane used for electronic device, particularly a kind of graphite heat conducting composite membrane.
Background technology
The utility model is mainly used as the pad pasting of panel computer, smart mobile phone, intelligent watch screen surface.Along with the development of panel computer, smart mobile phone, intelligent watch, the electronic product of miniaturization, high integration is more and more higher to the requirement of heat radiation.Metal heat sink has in the market been difficult to meet the requirement of smart machine to lightweight, small and exquisite especially high heat dispersion.
Summary of the invention
The technical problem that the utility model solves is, overcomes that existing heat sink technology volume is large, matter weight, and the technical problem that thermal conductivity is not high enough, provides a kind of graphite heat conducting composite membrane.
The technical scheme that the utility model solves is: be made up of PET film 1, graphite film 2, silicone adhesive 3 and silicone oil paper 4, silicone oil paper 4 is located at the lowest layer, is provided with successively silicone adhesive 3, graphite film 2 and PET film 1 above silicone oil paper 4.
Described graphite film 2 layer thicknesses are 10-80 μ m.
Described silicone adhesive 3 adhesive layer thickness are 5-10 μ m.
The beneficial effect of this novel solution is, using PET film as protective layer, graphite film is as heat-conducting layer, silicone adhesive as tack coat, silicone oil paper as release layer, four layers are composited.The thermal conductivity of graphite film heat-conducting layer reaches 1200-1900w/(mk), can increase substantially the thermal conductivity of film; Silicone adhesive as tack coat and silicone oil paper as release layer, easy to use.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Number in the figure: 1-PET film, 2-graphite film, 3-silicone adhesive), 4-silicone oil paper.
Embodiment
Below in conjunction with specific embodiment, technical solutions of the utility model are elaborated.
A kind of graphite heat conducting composite membrane of the utility model, is made up of PET film 1, graphite film 2, silicone adhesive 3 and silicone oil paper 4, and PET film 1 is that tack coat, silicone oil paper 4 are release layer as protective layer, graphite film 2 as heat-conducting layer, silicone adhesive 3, and four layers are composited.Silicone oil paper 4 is located at the lowest layer, is covered with successively silicone adhesive 3, graphite film 2 and PET film 1 above.
The thickness of graphite film 2 is 10-80 μ m.
Silicone adhesive 3 adhesive layer thickness are 5-10 μ m.
Concrete making processes of the present utility model is as follows:
First using polyimide as raw material film, make graphite film 2 through 2800 DEG C of pyroprocessing, its thermal conductivity is 1600w/(mk), thickness is 10-80 μ m; The surface that graphite film 2 one sides is overlying on to the PET film 1 of the one-sided silicone oil of oiling by rolling process, another side applies one deck silicone adhesive 3 as tack coat by coating method, and the thickness of silicone adhesive 3 tack coats is 5 μ m; Finally by rolling process, silicone oil paper 4 is covered on the electrographite film 2 that scribbles silicone adhesive 3 again.
When use, as long as take silicone oil paper 4 off, graphite film 2 directly can be pasted to the screen surface at smart mobile phone, panel computer, intelligent watch by the tack coat of silicone adhesive 3.
Claims (3)
1. a graphite heat conducting composite membrane, it is characterized in that: formed by PET film (1), graphite film (2), silicone adhesive (3) and silicone oil paper (4), silicone oil paper (4) is located at the lowest layer, is provided with successively silicone adhesive (3), graphite film (2) and PET film (1) above silicone oil paper (4).
2. a kind of graphite heat conducting composite membrane as claimed in claim 1, is characterized in that: described graphite film (2) layer thickness is 10-80 μ m.
3. a kind of graphite heat conducting composite membrane as claimed in claim 1, is characterized in that: described silicone adhesive (3) adhesive layer thickness is 5-10 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420174341.6U CN203855543U (en) | 2014-04-11 | 2014-04-11 | Thermally conductive graphite composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420174341.6U CN203855543U (en) | 2014-04-11 | 2014-04-11 | Thermally conductive graphite composite film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203855543U true CN203855543U (en) | 2014-10-01 |
Family
ID=51605410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420174341.6U Expired - Fee Related CN203855543U (en) | 2014-04-11 | 2014-04-11 | Thermally conductive graphite composite film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203855543U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105153960A (en) * | 2015-10-26 | 2015-12-16 | 衡山县佳诚新材料有限公司 | Ultrathin heat dissipation adhesive tape |
| CN105163564A (en) * | 2015-08-28 | 2015-12-16 | 努比亚技术有限公司 | Graphite cooling fin and liquid crystal display device |
| FR3043938A1 (en) * | 2015-11-23 | 2017-05-26 | Aerokwai | HEATING MATERIAL AND USE FOR THE REPAIR OF COMPOSITE STRUCTURES |
| CN109608884A (en) * | 2018-11-29 | 2019-04-12 | 深圳先进技术研究院 | Thermally conductive shielding organosilicon material of one kind and preparation method thereof |
| CN111409319A (en) * | 2020-03-29 | 2020-07-14 | 苏州高泰电子技术股份有限公司 | Flexible high-thermal conductivity interface material and preparation method thereof |
-
2014
- 2014-04-11 CN CN201420174341.6U patent/CN203855543U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105163564A (en) * | 2015-08-28 | 2015-12-16 | 努比亚技术有限公司 | Graphite cooling fin and liquid crystal display device |
| CN105163564B (en) * | 2015-08-28 | 2018-07-31 | 努比亚技术有限公司 | Graphite heat radiation fin and liquid crystal display device |
| CN105153960A (en) * | 2015-10-26 | 2015-12-16 | 衡山县佳诚新材料有限公司 | Ultrathin heat dissipation adhesive tape |
| FR3043938A1 (en) * | 2015-11-23 | 2017-05-26 | Aerokwai | HEATING MATERIAL AND USE FOR THE REPAIR OF COMPOSITE STRUCTURES |
| CN109608884A (en) * | 2018-11-29 | 2019-04-12 | 深圳先进技术研究院 | Thermally conductive shielding organosilicon material of one kind and preparation method thereof |
| CN109608884B (en) * | 2018-11-29 | 2020-09-04 | 深圳先进技术研究院 | Heat-conducting shielding organic silicon material and preparation method thereof |
| CN111409319A (en) * | 2020-03-29 | 2020-07-14 | 苏州高泰电子技术股份有限公司 | Flexible high-thermal conductivity interface material and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20180411 |