Heat radiation material, heat radiation structure, and preparation method and application thereof

A technology of heat-dissipating materials and heat-dissipating structures, applied in heat-exchange materials, chemical instruments and methods, coatings, etc., can solve the problems affecting thermal conductivity and stability, poor compatibility between heat-dissipating fillers and polymer materials, and easy aggregation of nano-heat-dissipating materials and other problems, to achieve the effect of improving interface performance, excellent heat dissipation performance, and improving compatibility

Inactive Publication Date: 2013-07-17
REGAL PAPER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, heat dissipation fillers in heat dissipation coating materials on the market are mainly graphite, carbon nanotubes, etc.; however, the compatibility between the above

Method used

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  • Heat radiation material, heat radiation structure, and preparation method and application thereof
  • Heat radiation material, heat radiation structure, and preparation method and application thereof
  • Heat radiation material, heat radiation structure, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0054] Example 1:

[0055] Under the protection of nitrogen, weigh 10g of 30-40nm hollow carbon nanospheres (HCNC) and place them in 50g of solvent water, ultrasonically at room temperature for 30 minutes until the dispersion is uniform; then under the ultrasonic state, adjust the pH value with 5% ammonia water To 8-10, then add 10g of modifier polyvinyl alcohol (Mw=2000) aqueous solution (concentration of 50wt%) at a rate of 3ml / min. After the addition, continue ultrasonic for 30min until the dispersion is uniform; The temperature rise rate is ℃ / min to 60℃. During this process, the remaining 5g of the modifier polyvinyl alcohol aqueous solution is added dropwise at a rate of 3ml / min. When the temperature reaches 60℃, the dripping is completed. After 4 hours of reaction, the ultra-high pressure nano-homogenizer disperses for 60 minutes, and the ultrasonic dispersion for 60 minutes, then a uniformly dispersed inorganic heat-dissipating nanomaterial aqueous slurry can be obtained. ...

Example Embodiment

[0056] Example 2

[0057] Under the protection of nitrogen, weigh 10g of 10-30nm carbon nanotubes (product label: IMC4, the same below), place them in 100g of solvent water, ultrasonically at room temperature for 30 minutes until they are uniformly dispersed; then, use 5% under ultrasonic conditions Adjust the pH value of the ammonia water to 8-10, then add 10g of modifier polyvinyl alcohol (Mw=2000) aqueous solution (concentration of 50wt%) at a rate of 4ml / min, and continue ultrasonic for 30min until dispersed Uniform; then the temperature is raised to 50°C at a heating rate of 3°C / min, during this process, the remaining 5g of the above modifier polyvinyl alcohol aqueous solution is added dropwise at a rate of 4ml / min, and the addition is complete when the temperature is raised to 50°C , React at this temperature for 6 hours, and then disperse in an ultra-high pressure nano-homogenizer for 60 minutes and ultrasonic dispersion for 60 minutes to obtain a uniformly dispersed inorg...

Example Embodiment

[0058] Example 3

[0059] Under the protection of nitrogen, weigh 25g of 30nm nano aluminum nitride (product number: DK331, the same below) into 75g of solvent water, ultrasonic 20min at room temperature until the dispersion is uniform; then under the ultrasonic state, use 5% Adjust the pH value of ammonia water to 8, then add 12g of modifier polyacrylic acid (Mw=3000) aqueous solution (concentration of 50wt%) at a rate of 2ml / min. After the addition, continue ultrasonic for 15min until the dispersion is uniform; The temperature is raised to 60°C at a rate of 3°C / min. During this process, the remaining 6g of the above-mentioned modifier polyacrylic acid aqueous solution is added dropwise at a rate of 2ml / min. When the temperature is raised to 60°C, the dropwise addition is complete. After 3 hours of reaction, the ultra-high pressure nano-homogenizer disperses for 120 minutes, and the ultrasonic dispersion for 90 minutes, to obtain a uniformly dispersed inorganic heat-dissipating ...

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Abstract

The invention provides inorganic heat radiation nano-grade material aqueous slurry, a heat radiation material comprising the inorganic heat radiation nano-grade material aqueous slurry, and preparation methods and applications thereof. The inorganic heat radiation nano-grade material aqueous slurry comprises the components comprising, by weight, 10-25 parts of an inorganic heat radiation nano-grade material, 0.5-20 parts of a modifier solution, and 50-100 parts of a solvent. The heat radiation material comprises, by weight, 10-30 parts of the inorganic heat radiation nano-grade material aqueous slurry, 40-80 parts of aqueous high-molecular resin, 20-30 parts of latex, 10-40 parts of a film-forming auxiliary agent, 0.5-5 parts of an auxiliary agent, and 5-20 parts of a diluting agent. With the application of the inorganic heat radiation nano-grade material aqueous slurry, compatibility and system dispersion stability of the inorganic heat radiation nano-grade material and the high-molecular material are improved, such that the unique heat radiation material with excellent heat radiation performance and with the inorganic heat radiation nano-grade material aqueous slurry is obtained.

Description

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Claims

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Application Information

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Owner REGAL PAPER TECH
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