Macromolecule heat conduction material and preparation method thereof

A technology of heat-conducting materials and polymers, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of reduced heat conduction effect, dry cracking and powdering of heat-conducting paste, short effective life of heat-conducting paste, etc., to achieve low cost and medium good electrical performance

Inactive Publication Date: 2012-07-04
YANTAI DARBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effective life of the thermal paste on the market is generally short. During the repeated heating and cooling process of electronic devices, small molecules gradually volatilize and seep out. In addition to polluting the device, the thermal paste itself will gradually dry, crack and powder due to the change in the proportion of components, and the thermal conductivity will be reduced. , seriously affect the performance and life of electronic products

Method used

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  • Macromolecule heat conduction material and preparation method thereof
  • Macromolecule heat conduction material and preparation method thereof
  • Macromolecule heat conduction material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Accurately weigh 30 g of branched chain silicone oil, 60 g of linear silicone oil, 1 g of γ-aminopropyltrimethoxysilane and 5 g of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, Add the above-mentioned components into a double planetary power mixer and stir for 30 minutes, add 210g of spherical alumina to the above mixture, stir for 30 minutes, add 90g of zinc oxide whiskers, stir for 30 minutes, under the condition of a vacuum of -0.1Mpa Next, stir for 30 minutes;

[0031] Wherein, the branched silicone oil has a viscosity of 1,000,000 mPa·s, and the linear silicone oil has a viscosity of 200 mPa·s.

Embodiment 2

[0033] Accurately weigh 15g of branched chain silicone oil, 80g of linear silicone oil, 1.5g of γ-aminopropyltriethoxysilane, 1.5g of γ-methacryloxypropyltrimethoxysilane, N,N′-bis-[ 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl]hexamethylenediamine 2g, add the above-mentioned components into a double planetary power mixer and stir for 60 minutes, add spherical aluminum powder to the above-mentioned mixture 490g of the mixture with spherical zinc powder, stirred for 60 minutes, added 210g of the mixture of potassium carbonate whiskers and silicon nitride whiskers, stirred for 60 minutes, and stirred for 60 minutes under the condition of vacuum degree of -0.1Mpa.

[0034] Wherein, the branched silicone oil has a viscosity of 10000 mPa·s, and the linear silicone oil has a viscosity of 2000 mPa·s.

Embodiment 3

[0036] Accurately weigh 5 g of branched chain silicone oil, 85 g of linear silicone oil, 2.5 g of γ-methacryloxypropyl trimethoxysilane, 2.5 g of γ-glycidyl etheroxypropyl trimethoxysilane, 1,2-bis( 2.5g of 3,5-di-tert-butyl-4-hydroxy-phenylpropionic acid) hydrazine, 2.5g of tris[2,4-di-tert-butylphenyl]phosphite, add the above components to the double planetary power Stir in a mixer for 45 minutes, add 880 g of a mixture of spherical zinc powder, spherical copper powder and spherical alumina to the above mixture, stir for 45 minutes, add 220 g of a mixture of silicon nitride whiskers and β-SiC whiskers, and stir for 45 minutes , Stirring for 45 minutes under the condition of vacuum degree of -0.1Mpa.

[0037] Wherein, the viscosity of the branched silicone oil is 80000 mPa·s, and the viscosity of the linear silicone oil is 10 mPa·s.

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Abstract

The invention relates to a macromolecule heat conduction material, which is composed of matrix resin and a heat conduction filler. The weight ratio of the matrix resin and the heat conduction filler is 100: 300-1100. A preparation method of the macromolecule heat conduction material is further disclosed. Heat conductivity coefficient of the long-wetting macromolecule heat conduction material is adjustable in 1-6.0W/m.K, the macromolecule heat conduction material can be used for heat dissipation of high-power electronic products, can be used for design and development of civil electronic products in a large amount, is low in cost and good in dielectric performance, and simultaneously has insulation and sealing effects.

Description

technical field [0001] The invention relates to a polymer heat-conducting material and a preparation method thereof, in particular to a long-term wet polymer heat-conducting material and a preparation method thereof, belonging to the field of polymer materials. Background technique [0002] At present, the assembly of microelectronics is becoming more and more intensive, and its working environment is rapidly changing to high temperature. Every time the temperature of electronic components increases by 2°C, its reliability will decrease by 10%. Therefore, timely heat dissipation becomes an important factor affecting its service life. With the miniaturization and functional integration of electronic products, the internal structure of electronic devices is becoming more and more complex, the density of components is getting higher and higher, the heat generation is getting bigger and bigger, and the requirements for thermally conductive materials are getting higher and higher...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08K13/04C08K7/08C08K7/10C08K7/00C08K3/04C08K7/14C09K5/14
Inventor 石红娥王建斌陈田安解海华
Owner YANTAI DARBOND TECH
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