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Preparation method of graphene heat conduction double-sided adhesive tape

A heat-conducting double-sided adhesive and graphene technology, applied in the direction of heat exchange materials, chemical instruments and methods, adhesives, etc., to achieve the effect of minimum addition, improve thermal conductivity, and reduce production costs

Active Publication Date: 2017-02-22
DEYANG CARBONENE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no mature technology for applying graphene to thermally conductive double-sided adhesives

Method used

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  • Preparation method of graphene heat conduction double-sided adhesive tape

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Effect test

Embodiment 1

[0037] A preparation method of graphene thermally conductive double-sided adhesive, comprising the steps of:

[0038] (1) Stir and mix the thermally conductive filler and graphene powder, so that the graphene covers the thermally conductive filler, then add the dispersion liquid composed of silane coupling agent and ethanol, stir and mix, and obtain a composite thermally conductive filler after mixing.

[0039] The specific process of this step is that the specific process of the above step (1) is: firstly add the thermally conductive filler and graphene powder into a kneader or a high-speed stirrer, stir and mix at a high speed at room temperature for 10min-1h, so that the graphene Coat the thermally conductive filler, then add the silane coupling agent to ethanol to form a silane coupling agent dispersion, and add the silane coupling agent dispersion to the kneader or high-speed stirring in the form of spray during the high-speed stirring process In the container, after the ...

Embodiment 2

[0049] A preparation method of graphene thermally conductive double-sided adhesive, comprising the steps of:

[0050] (1) First add the thermally conductive filler and graphene powder into the kneader or high-speed mixer in proportion, and stir and mix at high speed for 10 minutes at room temperature to make the graphene cover the thermally conductive filler; then add the silane coupling agent to the water content Prepare the silane coupling agent dispersion with a mass percent concentration of 5% in less than 1% ethanol, and add the silane coupling agent dispersion to the kneader or high-speed agitator in the form of spray during high-speed stirring After the addition is completed, continue to stir at a high speed for 30 minutes, take it out, and obtain the processed composite thermally conductive filler. Among them, the mass fraction of graphene in the composite thermally conductive filler is 1%, and the mass fraction of the silane coupling agent in the composite thermally c...

Embodiment 3

[0055] A preparation method of graphene thermally conductive double-sided adhesive, comprising the steps of:

[0056] (1) First, add the thermally conductive filler and graphene powder into the kneader or high-speed mixer in proportion, and stir and mix at high speed for 1 hour at room temperature to make the graphene cover the thermally conductive filler; then add the silane coupling agent to the water content Prepare a silane coupling agent dispersion with a mass percent concentration of 10% in ethanol less than 1%, and add the silane coupling agent dispersion to the kneader or high-speed agitator in the form of spray during high-speed stirring After the addition is completed, continue to stir at a high speed for 2 hours, take it out, and obtain the processed composite thermally conductive filler. Among them, the mass fraction of graphene in the composite thermally conductive filler is 5%, and the mass fraction of the silane coupling agent in the composite thermally conducti...

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Abstract

The invention discloses a preparation method of graphene heat conduction double-sided adhesive tape. The method comprises the following steps: (1) stirring and mixing heat conduction filler and graphene powder so as to enable the heat conduction filler to be coated with graphene, then adding dispersion liquid formed by a silane coupling agent and alcohol and stirring and mixing to obtain composite heat conduction filler; (2) evenly mixing glue with the composite heat conduction filler, and then coating two pieces of single-sided heat conduction adhesive by using release paper or release film as a carrier; after that, sticking the two pieces of single-sided heat conduction adhesive on a enhanced base material, removing the release paper or release film of one side, and winding to obtain a finished product. After the preparation method is adopted, the heat conduction performance of the double-sided adhesive tape is improved to the utmost extent under the condition of very low graphene adding amount, so that the insulating property and the heat conduction performance of the double-sided adhesive tape are improved.

Description

Technical field [0001] The present invention relates to the technical field of heat dissipation materials, and in particular to a preparation method of graphene thermally conductive double-sided tape. Background technique [0002] With the rapid development of the electronics industry, electronic products tend to be lighter and smaller, so the integration of electronic components is becoming higher and higher. Therefore, the requirements for the heat conduction and dissipation performance of electronic components are getting higher and higher. Thermal conductive double-sided tape is widely used because it has the functions of thermal conductivity, insulation and bonding. It has the characteristics of softness, compressibility, conformability and adaptability to a wide temperature range. It can fill uneven surfaces and can be tight and firm. It occupies a large market of thermally conductive materials due to its ability to perfectly fit heat source devices and heat sinks and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/04C09J11/04C09J133/00C09J121/00C09J175/04C09J183/04C09K5/14
CPCC08K3/04C08K3/14C08K3/22C08K3/28C08K3/38C08K9/06C08K9/10C08K2003/2227C08K2003/282C08K2003/385C09J7/21C09J7/35C09J7/38C09J11/04C09J121/00C09J133/00C09J175/04C09J183/04C09K5/14
Inventor 姚林何洪泉尹天平高华
Owner DEYANG CARBONENE TECH
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