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

High-thermal-conductivity elastic composite material and preparation method thereof

An elastic composite material and high thermal conductivity technology, applied in the field of composite materials, can solve the problems of limiting the application of pure polymers and low thermal conductivity, and achieve the effects of improving corrosion resistance, high thermal conductivity, and high thermal conductivity

Inactive Publication Date: 2014-04-23
HUAWEI TECH CO LTD +1
View PDF2 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because polymer materials are insulators and have low thermal conductivity, the application of pure polymers in these fields is largely limited.

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
  • High-thermal-conductivity elastic composite material and preparation method thereof
  • High-thermal-conductivity elastic composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] An embodiment of the present invention provides a high thermal conductivity elastic composite material, the high thermal conductivity elastic composite material includes curable silicone resin and composite thermal conductive filler, the composite thermal conductive filler is uniformly dispersed in the curable silicone resin, the curable The weight percentage of the silicone resin is 20%-60%, and the weight percentage of the composite heat-conducting filler is 40%-80%. The high thermal conductivity elastic composite material has the advantages of simple process, short production cycle, small product density, good elasticity, excellent corrosion resistance and high temperature resistance of the product.

[0038] Wherein, the curable silicone resin includes addition curable silicone resin, such as methyl vinyl silicone rubber with a molecular weight of 400,000-600,000.

[0039] Wherein, the composite heat-conducting filler includes any one of carbon nanotubes and graphene...

Embodiment 2

[0041] An embodiment of the present invention provides a method for preparing a high thermal conductivity elastic composite material. The preparation method includes: uniformly kneading the curable silicone resin, composite thermal conductivity filler and vulcanizing agent on a machine, wherein the machine can be a mixer Or a kneader; wherein, the curable silicone resin accounts for 20% to 60% of the total weight of the curable silicone resin and the composite thermally conductive filler, and the composite thermally conductive filler accounts for 40% of the total weight of the curable silicone resin and the composite thermally conductive filler. ~80%, the weight percentage of the vulcanizing agent and the curable silicone resin is 1:100~2:100, the vulcanizing agent can be 2,5-dimethyl-2,5-di-tert-butyl peroxy Hexane;

[0042] Vulcanize the homogeneously mixed mixture for 3 to 15 minutes at an air pressure of 100 to 300 MPa and a temperature of 160 to 180°C to obtain a high the...

Embodiment 3

[0044] Such as figure 1 and figure 2 The composite thermally conductive filler shown is the one involved in Example 2. The embodiment of the present invention provides a method for preparing a composite thermally conductive filler. The composite thermally conductive filler includes carbon nanotubes and 0.1-100 micron thermally conductive Powder, the preparation method of the composite thermally conductive filler comprises:

[0045] Disperse 20g of the heat-conducting powder into 100ml of an aqueous solution with a concentration of 1Mol / L cobalt nitrate to obtain a first mixed solution, and heat the first mixed solution to 70-90°C after ultrasonic treatment in an ultrasonic oscillator. During the process, the first mixed solution is mechanically stirred, and then ammonia water is added dropwise to the first mixed solution to obtain a second mixed solution until the pH value of the second mixed solution is greater than or equal to 12, and the second mixed solution is The mixe...

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
concentrationaaaaaaaaaa
Login to View More

Abstract

The embodiment of the invention provides a high-thermal-conductivity elastic composite material and a preparation method thereof. The composite material comprises curing type organic silicon resin and composite thermal conductive filler, wherein the composite thermal conductive filler is uniformly distributed in the curing type organic silicon resin; the weight percentage of the curing type organic silicon resin is 20% to 60%; the weight percentage of the composite thermal conductive filler is 40% to 80%; the composite thermal conductive filler comprises any one of carbon nano tubes and graphene oxide and thermal conductive powder being 0.1-100 microns. The high-thermal-conductivity elastic composite material is simple in technology, short in production period, low in product density, good in elasticity, resistant to product corrosion and good in high temperature resistance performance.

Description

technical field [0001] The invention belongs to the field of composite materials, in particular to a high thermal conductivity elastic composite material and a preparation method thereof. Background technique [0002] With the development of thin, light and small electronic devices, heat dissipation has become an important development direction in the current material field. In order to make electronic systems (especially sensitive circuits and components) work continuously and stably, effective and reliable heat dissipation is very important. Therefore, research and development of high-efficiency electronic heat dissipation materials and related technologies are urgently needed. The role of Thermal Interface Material (TIM) is mainly to reduce the contact thermal resistance between the heating electronic components and the heat sink. It can form an effective heat transfer channel between the electronic components and the heat sink, thereby greatly reducing Small thermal con...

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 Applications(China)
IPC IPC(8): C08L83/04C08K13/06C08K9/00C08K9/04C08K9/02C08K3/22C08K7/00C08K3/04C08K5/14C08J3/24
Inventor 程继鹏刘涛徐焰
Owner HUAWEI 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