Nothing Special   »   [go: up one dir, main page]

CN113853093A - High-heat-conductivity soft cushion and preparation method thereof - Google Patents

High-heat-conductivity soft cushion and preparation method thereof Download PDF

Info

Publication number
CN113853093A
CN113853093A CN202010595812.0A CN202010595812A CN113853093A CN 113853093 A CN113853093 A CN 113853093A CN 202010595812 A CN202010595812 A CN 202010595812A CN 113853093 A CN113853093 A CN 113853093A
Authority
CN
China
Prior art keywords
silica gel
layer
gel resin
carbon fiber
resin layer
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
Application number
CN202010595812.0A
Other languages
Chinese (zh)
Inventor
余代有
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunshan Weisitai Electronic Technology Co ltd
Original Assignee
Kunshan Weisitai Electronic Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kunshan Weisitai Electronic Technology Co ltd filed Critical Kunshan Weisitai Electronic Technology Co ltd
Priority to CN202010595812.0A priority Critical patent/CN113853093A/en
Publication of CN113853093A publication Critical patent/CN113853093A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2039Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/34Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H01L23/373Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
    • H01L23/3733Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon having a heterogeneous or anisotropic structure, e.g. powder or fibres in a matrix, wire mesh, porous structures
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/34Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H01L23/373Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
    • H01L23/3735Laminates or multilayers, e.g. direct bond copper ceramic substrates

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Materials Engineering (AREA)
  • Power Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Thermal Sciences (AREA)
  • Laminated Bodies (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

The invention discloses a high-thermal-conductivity cushion and a preparation method thereof, wherein the high-thermal-conductivity cushion comprises a plurality of groups of graphite film layers, first silica gel resin layers, carbon fiber film layers, graphene layers and second silica gel resin layers which are sequentially arranged, and the surfaces of all the layers in each group are attached with a heat source; outer graphite rete and outer second silica gel resin layer all are provided with one deck pressure sensitive glue membrane, the surface bonding heat conduction granule of carbon fiber film layer, first silica gel resin layer and the inside support by glass fiber or ceramic particle net of second silica gel resin layer. The invention realizes the special forming combination of the multiple heat dissipation layers and improves the uniform and rapid heat dissipation effect of the graphite film.

Description

High-heat-conductivity soft cushion and preparation method thereof
Technical Field
The invention belongs to the technical field of heat conduction materials, and particularly relates to a high-heat-conduction cushion and a preparation method thereof.
Background
With the rapid development of microelectronic integration technology and high-density printed board assembly technology, the assembly density is rapidly increased, the volumes of electronic elements and logic circuits are reduced by thousands of times, and electronic instruments and equipment are increasingly developed in the directions of being light, thin, short and small. Under the high-frequency working frequency, the semiconductor working thermal environment moves towards the high-temperature direction rapidly, at the moment, heat generated by the electronic components is accumulated and increased rapidly, and under the temperature of the using environment, the electronic components still can work normally with high reliability, and the timely heat dissipation capability becomes a key limiting factor influencing the service life of the electronic components. In order to ensure the operation reliability of the components, materials with excellent comprehensive properties such as high reliability, high heat conductivity and the like are needed to be used, so that heat accumulated by the heating element is quickly and timely transferred to the heat dissipation equipment, and the normal operation of the electronic equipment is ensured. The simple stack structure of current graphite layer and silica gel resin layer, its horizontal heat conduction efficiency and perpendicular heat conduction efficiency are very far away mutually, lead to the heat to be can not even quick the biography away.
Disclosure of Invention
The invention aims to solve the technical problems and provides a high-thermal-conductivity cushion and a preparation method thereof, so that special forming combination of multiple heat dissipation layers is realized, and uniform and rapid heat dissipation effects of graphite films are improved. In order to achieve the purpose, the technical scheme of the invention is as follows:
the high-thermal-conductivity cushion comprises a plurality of groups of graphite film layers, a first silica gel resin layer, a carbon fiber film layer, a graphene layer and a second silica gel resin layer which are sequentially arranged, wherein the surface of each layer in each group is attached with a heat source; outer graphite rete and outer second silica gel resin layer all are provided with one deck pressure sensitive glue membrane, the surface bonding heat conduction granule of carbon fiber film layer, first silica gel resin layer and the inside support by glass fiber or ceramic particle net of second silica gel resin layer.
Specifically, the surface of graphite rete, first silica gel resin layer, carbon fiber film layer, graphite alkene layer, second silica gel resin layer all covers there is the one deck from type paper.
Specifically, the heat conducting particles are silver powder or copper powder.
Specifically, the widths of the first and second silicone resin layers are 400-500 μm.
Specifically, the width of the graphite film layer is 25-30 μm.
Specifically, the width of the graphene layer is 5-10 μm.
Specifically, the width of the carbon fiber film layer is 10-20 μm.
Specifically, the surface of the carbon fiber film layer is bonded with heat conducting particles through an adhesive, and the adhesive is acrylate.
The preparation method of the high-thermal-conductivity cushion comprises the following steps:
1) preparing a graphite film layer, namely selecting a high polymer film material as a raw material, carbonizing the raw material in a carbonization furnace, graphitizing the raw material in a graphitization furnace, and pressing and spreading the raw material to prepare the graphite film layer;
2) preparing a carbon fiber film layer, and pressing and spreading the carbon fiber film to a set size;
3) spraying an adhesive on the surface of the carbon fiber film;
4) spreading the heat conducting particles on the surface of the carbon fiber film, and naturally drying;
5) preparing a graphene layer, uniformly mixing a graphene oxide aqueous solution and a reducing agent, standing at the temperature of 60-80 ℃, performing suction filtration on a filter membrane, drying a filter cake at the temperature of 100-110 ℃, and stripping the filter membrane to obtain the graphene layer;
6) preparing a silica gel resin layer, filling and coating the silica gel resin on a glass fiber or ceramic particle net, and uniformly paving;
7) and carrying out composite molding on the graphite film layer, the first silica gel resin layer, the carbon fiber film layer, the graphene layer and the second silica gel resin layer at 90-150 ℃ by a film laminating machine.
Compared with the prior art, the high-heat-conductivity cushion and the preparation method thereof have the beneficial effects that:
the prepared high-heat-conductivity cushion has excellent heat dissipation performance and certain wear resistance and corrosion resistance; the laminated structure of the graphite film layer and the graphene layer is prepared, so that the heat dissipation effect is enhanced, and the composite material has the advantage of light weight; adopt first silica gel resin layer, carbon fiber film layer, second silica gel resin layer structure, the reinforcing supports the pliability, and when overall structure contacted the heat source, had the good heat transfer performance of horizontal direction and vertical direction, it was more even to transfer heat.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a heating test according to the present embodiment;
FIG. 3 is a schematic view of the structure of the present embodiment positioned on the heat source;
the figures in the drawings represent:
1 graphite rete, 2 first silica gel resin layers, 3 carbon fiber film layers, 4 graphite alkene layer, 5 second silica gel resin layers, 6 pressure sensitive glue membrane.
Detailed Description
The technical solutions in the embodiments of the present invention are described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example 1:
referring to fig. 1 to 3, the present embodiment is a high thermal conductivity cushion, and includes a plurality of groups of graphite film layers 1, first silicone resin layers 2, carbon fiber film layers 3, graphene layers 4, and second silicone resin layers 5 arranged in sequence, where the surfaces of each layer in each group are attached to a heat source; lie in outer graphite rete 1 and lie in outer second silica gel resin layer 5 and all be provided with one deck pressure sensitive adhesive film 6, the surface bonding heat conduction granule of carbon fiber film layer 3, first silica gel resin layer 2 and the inside glass fiber support of second silica gel resin layer 5.
The surfaces of the graphite film layer, the first silica gel resin layer, the carbon fiber film layer, the graphene layer and the second silica gel resin layer are all covered with a layer of release paper (not shown in the figure). The heat conducting particles are silver powder or copper powder. The widths of the first and second silicone resin layers were 400 μm. The width of the graphite film layer was 30 μm. The width of the graphene layer was 5 μm. The width of the carbon fiber film layer is 20 μm. The surface of the carbon fiber film layer is bonded with the heat conducting particles through an adhesive, and the adhesive is acrylate.
The preparation method of the high-thermal-conductivity cushion comprises the following steps:
1) preparing a graphite film layer, namely selecting a high polymer film material polyamide as a raw material, carbonizing the polyamide in a carbonization furnace, and heating to 1400 ℃ for 6 hours; pressurizing under argon atmosphere, graphitizing by a graphitization furnace, heating to 2800 ℃ for 10h, and rolling in a rolling mill to prepare a graphite film layer;
2) preparing a carbon fiber film layer, and pressing and spreading the carbon fiber film to a set size;
3) spraying an adhesive on the surface of the carbon fiber film;
4) spreading the heat conducting particles on the surface of the carbon fiber film, and naturally drying;
5) preparing a graphene layer, uniformly mixing a graphene oxide aqueous solution and a reducing agent, standing and reducing for 2 hours at the temperature of 60 ℃, then performing suction filtration on a filter membrane, drying a filter cake for 2 hours at the temperature of 100 ℃, and stripping the filter membrane to prepare the graphene layer;
6) preparing a silica gel resin layer, filling and coating the silica gel resin on a glass fiber or ceramic particle net, and uniformly paving;
7) and carrying out composite molding on the graphite film layer, the first silica gel resin layer, the carbon fiber film layer, the graphene layer and the second silica gel resin layer at 90 ℃ by using a film laminating machine.
The thermal conductivity (horizontal direction) of the prepared high-thermal-conductivity cushion is as follows: 1820W/m.k, thermal conductivity (vertical direction): 1800W/m.k. The total width of high heat conduction cushion is 30mm, and the height is 3 mm.
Example 2:
the distinguishing features from example 1 are: the first and second silicone resin layers 2 and 5 are internally supported by a ceramic particle network. The widths of the first and second silicone resin layers were 500 μm. The width of the graphite film layer is 25 μm. The width of the graphene layer was 10 μm. The width of the carbon fiber film layer is 10 μm.
The preparation method of the high-thermal-conductivity cushion comprises the following steps:
5) preparing a graphene layer, uniformly mixing a graphene oxide aqueous solution and a reducing agent, standing and reducing at the temperature of 80 ℃ for 1h, performing suction filtration on a filter membrane, drying a filter cake at the temperature of 110 ℃ for 1h, and stripping the filter membrane to obtain the graphene layer;
7) and carrying out composite molding on the graphite film layer, the first silica gel resin layer, the carbon fiber film layer, the graphene layer and the second silica gel resin layer at 150 ℃ by using a film laminating machine.
The thermal conductivity (horizontal direction) of the prepared high-thermal-conductivity cushion is as follows: 1800W/m.k, thermal conductivity (vertical direction): 1810W/m.k. The total width of high heat conduction cushion is 40mm, and the height is 3 mm.
Example 3:
the distinguishing features from example 1 are: the widths of the first and second silicone resin layers were 450 μm. The width of the graphite film layer was 28 μm. The width of the graphene layer was 7 μm. The width of the carbon fiber film layer is 15 μm.
The preparation method of the high-thermal-conductivity cushion comprises the following steps:
5) preparing a graphene layer, uniformly mixing a graphene oxide aqueous solution and a reducing agent, standing and reducing at the temperature of 70 ℃ for 1.5h, then performing suction filtration on a filter membrane, drying a filter cake at the temperature of 105 ℃ for 1.5h, and stripping the filter membrane to prepare the graphene layer;
7) and carrying out composite molding on the graphite film layer, the first silica gel resin layer, the carbon fiber film layer, the graphene layer and the second silica gel resin layer at 125 ℃ by using a film laminating machine.
The thermal conductivity (horizontal direction) of the prepared high-thermal-conductivity cushion is as follows: 1850W/m.k, thermal conductivity (vertical direction): 1845W/m.k. The total width of high heat conduction cushion is 35mm, and the height is 3 mm.
Comparative example:
the difference from embodiment 1 is that the high thermal conductive cushion does not include the carbon fiber film layer and the glass fiber.
Test data, a heat transfer test was performed on the high thermal conductive pads manufactured according to examples 1 to 3 and comparative example, heating treatment was performed on one end of the high thermal conductive pad, and the temperature was set; carrying out front and back temperature measurement detection at the position 1 at the other end of the high-heat cushion; performing front and back temperature measurement detection of the position 2 at a central position between the heating treatment and the temperature measurement detection of the position 1; the test data are as follows:
test sequence number Position of Test temperature C Composition of Setting temperature of
1 1 44 Comparative example 60
2 2 39 Comparative example 60
3 1 50 Example 1 60
4 2 51 Example 1 60
5 1 60 Example 2 70
6 2 61 Example 2 70
7 1 68 Example 3 80
8 2 69 Example 3 80
The heat-conducting performance of the examples 1-3 is obviously better than that of the comparative example, the measured temperature of the high heat-conducting soft pad prepared by the examples 1-3 at the position 1 and the position 2 can be basically consistent, and the temperature conduction at each point in the horizontal direction has no obvious difference.
When the embodiment is applied, the prepared high-heat-conductivity cushion has excellent heat dissipation performance and certain wear resistance and corrosion resistance; the laminated structure of the graphite film layer and the graphene layer is prepared, so that the heat dissipation effect is enhanced, and the composite material has the advantage of light weight; adopt first silica gel resin layer, carbon fiber film layer, second silica gel resin layer structure, the reinforcing supports the pliability, and when overall structure contacted the heat source, had the unanimous good heat transfer performance of horizontal direction and vertical direction, it was more even to transfer heat.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.

Claims (9)

1. High heat conduction cushion, its characterized in that: the carbon fiber composite membrane comprises a plurality of groups of graphite membrane layers, a first silica gel resin layer, a carbon fiber membrane layer, a graphene layer and a second silica gel resin layer which are sequentially arranged, wherein the surfaces of all the layers in each group are attached with a heat source; outer graphite rete and outer second silica gel resin layer all are provided with one deck pressure sensitive glue membrane, the surface bonding heat conduction granule of carbon fiber film layer, first silica gel resin layer and the inside support by glass fiber or ceramic particle net of second silica gel resin layer.
2. The high thermal conductivity cushion according to claim 1, wherein: the surface of graphite rete, first silica gel resin layer, carbon fiber film layer, graphite alkene layer, second silica gel resin layer all covers there is the one deck from type paper.
3. The high thermal conductivity cushion according to claim 1, wherein: the heat conducting particles are silver powder or copper powder.
4. The high thermal conductivity cushion according to claim 1, wherein: the widths of the first silica gel resin layer and the second silica gel resin layer are 400-500 mu m.
5. The high thermal conductivity cushion according to claim 1, wherein: the width of the graphite film layer is 25-30 μm.
6. The high thermal conductivity cushion according to claim 1, wherein: the width of the graphene layer is 5-10 μm.
7. The high thermal conductivity cushion according to claim 1, wherein: the width of the carbon fiber film layer is 10-20 mu m.
8. The high thermal conductivity cushion according to claim 1, wherein: the surface of the carbon fiber film layer is bonded with the heat conduction particles through an adhesive, and the adhesive is acrylate.
9. The preparation method of the high-thermal-conductivity cushion is characterized by comprising the following steps of:
1) preparing a graphite film layer, namely selecting a high polymer film material as a raw material, carbonizing the raw material in a carbonization furnace, graphitizing the raw material in a graphitization furnace, and pressing and spreading the raw material to prepare the graphite film layer;
2) preparing a carbon fiber film layer, and pressing and spreading the carbon fiber film to a set size;
3) spraying an adhesive on the surface of the carbon fiber film;
4) spreading the heat conducting particles on the surface of the carbon fiber film, and naturally drying;
5) preparing a graphene layer, uniformly mixing a graphene oxide aqueous solution and a reducing agent, standing at the temperature of 60-80 ℃, performing suction filtration on a filter membrane, drying a filter cake at the temperature of 100-110 ℃, and stripping the filter membrane to obtain the graphene layer;
6) preparing a silica gel resin layer, filling and coating the silica gel resin on a glass fiber or ceramic particle net, and uniformly paving;
7) and carrying out composite molding on the graphite film layer, the first silica gel resin layer, the carbon fiber film layer, the graphene layer and the second silica gel resin layer at 90-150 ℃ by a film laminating machine.
CN202010595812.0A 2020-06-28 2020-06-28 High-heat-conductivity soft cushion and preparation method thereof Pending CN113853093A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010595812.0A CN113853093A (en) 2020-06-28 2020-06-28 High-heat-conductivity soft cushion and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010595812.0A CN113853093A (en) 2020-06-28 2020-06-28 High-heat-conductivity soft cushion and preparation method thereof

Publications (1)

Publication Number Publication Date
CN113853093A true CN113853093A (en) 2021-12-28

Family

ID=78972391

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010595812.0A Pending CN113853093A (en) 2020-06-28 2020-06-28 High-heat-conductivity soft cushion and preparation method thereof

Country Status (1)

Country Link
CN (1) CN113853093A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI846507B (en) * 2023-06-08 2024-06-21 國立高雄大學 Compressible Thermally Conductive Pad

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102925859A (en) * 2011-10-23 2013-02-13 常州碳元科技发展有限公司 Preparation method for carbon layer material with protective layer structure
CN103895277A (en) * 2014-04-11 2014-07-02 江苏悦达新材料科技有限公司 Graphite film/heat-conducting silica gel/graphene composite radiating fin and preparation method for same
KR20140089725A (en) * 2013-01-07 2014-07-16 도레이첨단소재 주식회사 Thermal diffusion sheet and the manufacturing method thereof
CN204585979U (en) * 2015-01-27 2015-08-26 衡山县佳诚新材料有限公司 Heat conduction soft silica gel insulation spacer
CN105111484A (en) * 2015-08-28 2015-12-02 上海利物盛企业集团有限公司 Method for efficiently and continuously preparing heat-conducting graphite film on large area
CN106332522A (en) * 2014-01-26 2017-01-11 斯迪克新型材料(江苏)有限公司 High-heat-conductivity graphite film
CN207093112U (en) * 2017-06-29 2018-03-13 阜宁县曙光合成革有限公司 A kind of air duct coating cloth for coal mine
CN108819360A (en) * 2018-04-20 2018-11-16 哈尔滨理工大学 A kind of graphene heat conducting film/heat conductive silica gel film composite material of stratiform alternating structure and preparation method thereof
CN210011437U (en) * 2018-12-29 2020-02-04 东莞市鼎力薄膜科技有限公司 Heat-conducting silica gel heat-dissipation composite film

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102925859A (en) * 2011-10-23 2013-02-13 常州碳元科技发展有限公司 Preparation method for carbon layer material with protective layer structure
KR20140089725A (en) * 2013-01-07 2014-07-16 도레이첨단소재 주식회사 Thermal diffusion sheet and the manufacturing method thereof
CN106332522A (en) * 2014-01-26 2017-01-11 斯迪克新型材料(江苏)有限公司 High-heat-conductivity graphite film
CN103895277A (en) * 2014-04-11 2014-07-02 江苏悦达新材料科技有限公司 Graphite film/heat-conducting silica gel/graphene composite radiating fin and preparation method for same
CN204585979U (en) * 2015-01-27 2015-08-26 衡山县佳诚新材料有限公司 Heat conduction soft silica gel insulation spacer
CN105111484A (en) * 2015-08-28 2015-12-02 上海利物盛企业集团有限公司 Method for efficiently and continuously preparing heat-conducting graphite film on large area
CN207093112U (en) * 2017-06-29 2018-03-13 阜宁县曙光合成革有限公司 A kind of air duct coating cloth for coal mine
CN108819360A (en) * 2018-04-20 2018-11-16 哈尔滨理工大学 A kind of graphene heat conducting film/heat conductive silica gel film composite material of stratiform alternating structure and preparation method thereof
CN210011437U (en) * 2018-12-29 2020-02-04 东莞市鼎力薄膜科技有限公司 Heat-conducting silica gel heat-dissipation composite film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI846507B (en) * 2023-06-08 2024-06-21 國立高雄大學 Compressible Thermally Conductive Pad

Similar Documents

Publication Publication Date Title
US20180014431A1 (en) Thermal Pad and Electronic Device
CN1195394C (en) Substrate of circuit board
US10736237B2 (en) Heat sink, preparation method therefor, and communications device
CN102915985B (en) Double-sided adhering structure of power electronic device and production method of double-sided adhering structure
CN102593338A (en) Thin high-thermal-conductivity metal substrate and production method thereof
KR101808898B1 (en) Electro magnetic wave shielding sheet having heat relese fuction, and the preparation method for the same
CN102595766A (en) Flexible copper-foil high thermal conductivity substrate and manufacturing method thereof
CN113853093A (en) High-heat-conductivity soft cushion and preparation method thereof
CN105315970A (en) Thermal interface material for chip testing and preparation method of thermal interface material
US10568544B2 (en) 2-dimensional thermal conductive materials and their use
CN112876757B (en) Ultrathin double-sided adhesive tape with heat conduction function in vertical direction and application method
CN109627781B (en) Organic silicon graphite composite thermal interface material and preparation method and application thereof
WO2024146041A1 (en) High-strength graphene heat-conducting pad and preparation method therefor
CN112322258B (en) Graphene heat-conducting silica gel sheet and preparation method thereof
CN114213986A (en) Heat-conducting and insulating graphene gasket and preparation method thereof
TWM540741U (en) Multi-layer composite heat conduction structure
CN111170316A (en) Preparation method of isotropic high-thermal-conductivity carbon nanofiber membrane and product thereof
JP3850956B2 (en) Heat dissipation carbon composite board
CN114523736B (en) High-performance artificial graphite high-conductivity film applied to heat dissipation structure
WO2019228104A1 (en) Prepreg, prepreg preparation method, circuit board and electronic device
CN116867130A (en) Graphene electrothermal film and preparation method thereof
CN112778562A (en) Efficient heat-conducting interface material and preparation method and application thereof
CN208497881U (en) A kind of graphene-carbon nano tube fiber base heat-conducting pad
CN219497782U (en) High-efficiency graphite composite heat dissipation component
JP2000022055A (en) Carbon fabric composite radiator plate

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