Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A thermally conductive sheet with high orientation arrangement of artificial graphite sheet and preparation method thereof

A technology of artificial graphite sheet and thermal conductive sheet, applied in chemical instruments and methods, heat exchange materials, coatings, etc., to achieve the effect of small pressure

Active Publication Date: 2021-03-23
SUZHOU KANRONICS ELECTRONICS TECH CO LTD +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems existing in the above-mentioned existing artificial graphite sheet or graphene film, the present invention provides a thermally conductive sheet with composite orientation arrangement of artificial graphite sheet and graphene and its preparation method. The technical scheme is as follows:

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A thermally conductive sheet with high orientation arrangement of artificial graphite sheet and preparation method thereof
  • A thermally conductive sheet with high orientation arrangement of artificial graphite sheet and preparation method thereof
  • A thermally conductive sheet with high orientation arrangement of artificial graphite sheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Add 100g of vinyl silicone oil with a viscosity of 500mpa.s, 300g of 1-3um spherical alumina, 3g of graphene powder, 1g of alkylsilane coupling agent, and 1g of epoxy tackifier into the mixer and stir for 60min. Preparation of graphene composite high thermal conductivity mixture.

[0057] Place a 50um artificial graphite sheet in the mold, the thickness of the graphene composite high thermal conductivity mixture between the artificial graphite sheet layers is 0.08mm, and then lay a layer of artificial graphite sheet, and close the mold to solidify;

[0058] On the surface of the uppermost artificial graphite sheet, coat a layer of graphene composite high thermal conductivity mixture with a thickness of 0.08mm, then spread a layer of artificial graphite sheet, close the mold and solidify, repeat this step until the thickness of the block reaches the requirement;

[0059] The above mold clamping and curing include: pressure fastening, temperature rise, and heat preservati...

Embodiment 2

[0062] 100g of vinyl silicone oil with a viscosity of 500mpa.s, 100g of 1-3um spherical alumina, 70g of 0.5um spherical alumina, 150g of 1um aluminum nitride, 3g of graphene powder, 1g of alkyl silane coupling agent, 1g The epoxy tackifier was added into the mixer and stirred and mixed for 60 minutes to prepare the graphene composite heat-conducting mixture.

[0063] Place the 50um artificial graphite sheet in the mold, the graphene composite high thermal conductivity mixture between the artificial graphite sheet layers is 0.08mm, and then lay a layer of artificial graphite sheet, close the mold and solidify;

[0064] On the surface of the uppermost artificial graphite sheet, coat a layer of graphene composite high thermal conductivity mixture with a thickness of 0.08mm, then spread a layer of artificial graphite sheet, close the mold and solidify, repeat this step until the thickness of the block reaches the requirement;

[0065] The above mold clamping and curing include: pr...

Embodiment 3

[0068] 100g of vinyl silicone oil with a viscosity of 500mpa.s, 100g of 1-3um spherical alumina, 70g of 0.5um spherical alumina, 150g of 1um aluminum nitride, 3g of graphene powder, 1g of alkyl silane coupling agent, 1g The epoxy tackifier was added into the mixer and stirred and mixed for 60 minutes to prepare a graphene composite high thermal conductivity mixture.

[0069] Place the 50um artificial graphite sheet in the mold, the graphene composite high thermal conductivity mixture between the artificial graphite sheet layers is 0.08mm, and then lay a layer of artificial graphite sheet, close the mold and solidify;

[0070] On the surface of the uppermost artificial graphite sheet, coat a layer of graphene composite high thermal conductivity mixture with a thickness of 0.05mm, then lay a layer of artificial graphite sheet, close the mold and solidify, repeat this step until the thickness of the block reaches the requirement;

[0071] The above mold clamping and curing includ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses an artificial graphite sheet high-orientation arranged heat conduction fin and a preparation method thereof, and relates to the technical field of heat conduction fins and preparation thereof. The heat conduction fin comprises artificial graphite sheet layers and graphene composite heat conduction layers, the artificial graphite sheet layers and the graphene composite heatconduction layers are alternately arranged, and the respective number of the artificial graphite sheet layers or the graphene composite heat conduction layers in the heat conduction sheet is a positive integer not less than 1; each artificial graphite sheet layer comprises an artificial graphite sheet; each graphene composite heat conduction layer comprises curable elastic resin, graphene and heatconduction powder. The artificial graphite sheet is compounded with a graphene technology to prepare the artificial graphite sheet and graphene composite oriented arranged heat conduction shee, preparation parameters are calculated through a specific algorithm, the obtained preparation parameters can ensure that gaps or fractures do not occur between product layers, graphene and graphite sheets are arranged more orderly, the uneven density phenomenon does not occur on the upper portion and the lower portion of a block body, the heat conduction performance of the product is greatly improved, and the service life is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of heat conduction sheet and its preparation, in particular to a heat conduction sheet with artificial graphite sheets arranged in high orientation and a preparation method thereof. Background technique [0002] At present, with the rapid development of AI, 5G, big data, etc., the demand for high-performance thermal conductive sheet materials is increasing. Conventional thermal pads made of filled powder can no longer meet the heat conduction requirements under high power conditions. In order to further improve the thermal conductivity of the thermal interface, it is generally preferred to use the high thermal conductivity of carbon materials to align them, thereby greatly improving the thermal conductivity of the interface material. [0003] In the heat conduction sheet industry, there are currently 25W / m.k-50W / m.k high thermal conductivity interface materials prepared by carbon fiber orientation, and ther...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B32B9/00B32B9/04B32B33/00B32B37/00B32B38/00C09D183/07C09D7/61C09D7/63C09D7/65C09K5/14
CPCB32B9/007B32B9/04B32B33/00B32B37/00B32B38/00B32B2037/243B32B2038/0076B32B2255/20B32B2255/26C08K2201/014C09D183/04C09K5/14C09D7/61C09D7/63C09D7/65C09D7/68C09D7/69C09D7/70C08L63/00C08K7/18C08K3/042C08K5/54
Inventor 郭志军陈文斌黄国伟杨兰贺
Owner SUZHOU KANRONICS ELECTRONICS TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com