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A kind of graphene composite infrared radiation heat-conducting film and preparation method thereof

A graphene composite and infrared radiation technology, which is applied in semiconductor devices, conjugated diene coatings, semiconductor/solid-state device components, etc., can solve the problem that heating devices cannot be in direct contact with heat dissipation devices, electronic device functions fail, and affect heat dissipation Speed ​​and efficiency and other issues, to achieve good infrared heat radiation ability, good heat conduction ability, and improve the effect of heat conduction efficiency

Active Publication Date: 2018-05-22
宿州晶禾科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the high integration of electronic products, the computing speed and frequency are getting higher and higher, and electronic devices often generate a lot of heat locally, resulting in excessive local temperature, which makes the function of electronic devices invalid or even destructive, shortening the Electronic device service life
The lightness and thinning of modern electronic products requires that the heat sink cannot be made too large or too heavy. Due to the limitation of the structure and shape of electronic devices, direct contact between the heating device and the heat sink is often impossible, which seriously affects the heat dissipation speed and efficiency.
In addition, in traditional heating equipment, heat is required to be transmitted to an ideal position in time, but the heat generated by current heating equipment is mainly transported through heat contact conduction and air convection heat conduction, which is inefficient and has a large temperature gradient. The heat transfer is not uniform, and it is urgent to improve the heat conduction efficiency

Method used

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  • A kind of graphene composite infrared radiation heat-conducting film and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0029] The present embodiment makes graphene composite infrared radiation heat conduction film according to the following steps:

[0030] (1) Mix 10 parts of graphene, 5 parts of diamond powder, 2 parts of sodium dodecylbenzenesulfonate, 10 parts of epoxy resin and 73 parts of water, and carry out ultrasonic dispersion for 2 hours to obtain a mixed slurry; then use high shear Emulsify the mixed slurry at room temperature for the first time, the emulsification speed is 16000rpm, and the emulsification time is 6h; then put the slurry after the first emulsification into a ball mill for wet grinding for 24h, and pass the ground slurry through a 200-mesh sieve; finally use high-shear Carry out secondary normal temperature emulsification on the sieved slurry, the emulsification speed is 16000rpm, and the time is 3h, that is, the graphene composite infrared radiation coating is obtained;

[0031] (2) Coating the graphene composite infrared radiation coating obtained in step (1) onto ...

Embodiment 2

[0034] The present embodiment makes graphene composite infrared radiation heat conduction film according to the following steps:

[0035] (1) Mix 20 parts of graphene, 8 parts of alumina, 5 parts of sodium dodecylbenzenesulfonate, 15 parts of epoxy resin and 52 parts of water, and carry out ultrasonic dispersion for 2 hours to obtain a mixed slurry; then use high shear Emulsify the mixed slurry at room temperature for the first time, the emulsification speed is 16000rpm, and the emulsification time is 8h; then put the slurry after the first emulsification into the ball mill for wet grinding for 24h, and pass the ground slurry through a 200-mesh sieve; finally use high-shear Carry out secondary room temperature emulsification on the sieved slurry, the emulsification speed is 16000rpm, and the time is 4h, that is, the graphene composite infrared radiation coating is obtained;

[0036] (2) Coating the graphene composite infrared radiation coating obtained in step (1) onto a 20 μm...

Embodiment 3

[0039] The present embodiment makes graphene composite infrared radiation heat conduction film according to the following steps:

[0040] (1) Mix 10 parts of graphene, 5 parts of silicon carbide, 3 parts of sodium dodecylbenzenesulfonate, 10 parts of epoxy resin and 72 parts of water, and perform ultrasonic dispersion for 2 hours to obtain a mixed slurry; then use high shear Emulsify the mixed slurry at room temperature for the first time, the emulsification speed is 16000rpm, and the emulsification time is 6h; then put the slurry after the first emulsification into a ball mill for wet grinding for 24h, and pass the ground slurry through a 200-mesh sieve; finally use high-shear Carry out secondary normal temperature emulsification on the sieved slurry, the emulsification speed is 16000rpm, and the time is 3h, that is, the graphene composite infrared radiation coating is obtained;

[0041] (2) Apply the graphene composite infrared radiation coating obtained in step (1) to a 30 ...

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Abstract

The invention discloses a graphene composite infrared radiation heat conduction film and a manufacturing method thereof, which is characterized in that a graphene composite infrared radiation coating is arranged on a substrate. The invention utilizes the good infrared radiation ability and heat conduction ability of the graphene composite infrared radiation material, and the prepared film has good heat conduction ability in the directions parallel to and perpendicular to the substrate, so that the heat can be rapidly transferred from the heating part to the heat dissipation device Or in the environment, the heat conduction efficiency is improved, local hot spots in the equipment are eliminated, and the temperature gradient on the heat conduction path is reduced. The invention is simple and convenient to manufacture, and provides strong support for the high integration of electronic devices and the rapid heat conduction of heating equipment.

Description

technical field [0001] The invention relates to a high-performance heat-conducting material, in particular to a graphene composite infrared radiation heat-conducting film and a manufacturing method thereof. technical background [0002] With the high integration of electronic products, the computing speed and computing frequency are getting higher and higher, and electronic devices often generate a lot of heat locally, resulting in excessive local temperature, which makes the function of electronic devices invalid or even destructive, shortening the The service life of electronic devices. The lightness and thinning of modern electronic products requires that the heat sink cannot be made too large and heavy. Due to the limitation of the structure and shape of electronic devices, direct contact between the heating device and the heat sink is often impossible, which seriously affects the heat dissipation speed and efficiency. In addition, in traditional heating equipment, heat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L23/373C09D163/00C09D109/06
Inventor 吕鹏张梓晗张运奇吴义良
Owner 宿州晶禾科技有限公司