Resin-based graphene heat conduction composite material and method for preparing same

A heat-conducting composite material and graphene technology, which is applied in the field of heat-conducting plastics, can solve the problems that graphene is difficult to effectively disperse and the thermal conductivity of heat-conducting plastics is not high, and achieve the effects of improving thermal conductivity, improving heat dissipation performance, and good compatibility

Inactive Publication Date: 2017-05-10
YAHAM OPTOELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology improves how well an organic compound made from carbon atoms forms tiny particles called graphite quantum dents (GQs). These small particles are suspended throughout liquid or solid materials like epoxy that make up these composites. By doing this they help increase their ability to transfer heat effectively through them compared to other methods such as adding fillers into rubber products. Additionally, by creating GQs within certain types of matrices instead of just filling holes around each particle, we aim to enhance its effectiveness in reducing temperature fluctuations during use. Overall, our technical results include enhancing both properties and applications related to electronic devices used on vehicles.

Problems solved by technology

This patented describes how adding graphene into batteries helps increase their lifespan without consuming too much power or causing damage during use. Additionally, it suggests improving the cooling capabilities of these devices through enhancing their overall efficiency when charged.

Method used

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  • Resin-based graphene heat conduction composite material and method for preparing same
  • Resin-based graphene heat conduction composite material and method for preparing same
  • Resin-based graphene heat conduction composite material and method for preparing same

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preparation example Construction

[0035] The preparation method of the resin-based graphene thermally conductive composite material provided by the embodiment of the present invention comprises the following preparation steps:

[0036] S1: Modification of graphene quantum dots

[0037]Add 0.1 to 5 parts of graphene oxide quantum dots, 0.5 to 1 part of 4-dimethylaminopyridine and 0.5 to 1 part of 1-(3-dimethylaminopropyl )-3-Ethylcarbodiimide hydrochloride, ultrasonically dispersed for 30 to 60 minutes, placed at 80 to 100°C for 12 to 48 hours, and the resulting mixture was cooled to room temperature, filtered, washed with water, and dried to obtain The first product; then put 1 to 5 parts of the first product and 0.1 to 3 parts of anionic surfactant in 100 to 300 parts of deionized water, ultrasonically disperse for 30 to 60 minutes, let stand for 12 to 24 hours, and then filter with suction Washing with water and drying to obtain the second product;

[0038] S2: Preparation of polymer resin nanopowder

[0...

Embodiment 1

[0046] The preparation method of resin-based graphene heat-conducting composite material comprises the following steps:

[0047] S1: Modification of graphene quantum dots

[0048] In 100g of ethylenediamine, add 0.1g of graphene oxide quantum dots, 0.5g of 4-dimethylaminopyridine and 0.5g of 1-(3-dimethylaminopropyl)-3-ethylcarbodiethylene Amine hydrochloride, ultrasonically dispersed for 30 minutes, reacted at 80°C for 12h, cooled the reaction mixture to room temperature, filtered and washed with water, and dried at 60°C for 12h to obtain ethylenediamine grafted graphene oxide; 1g of ethylenediamine-grafted graphene oxide and 0.1g of sodium dodecylbenzenesulfonate were placed in 100g of deionized water, ultrasonically dispersed for 30min, after standing for 12h, filtered and washed with water, dried at 60°C for 12h, Obtain the graphene oxide modified by sodium dodecylbenzene sulfonate;

[0049] S2: Preparation of polymer resin nanopowder

[0050] Add 100g of polypropylene ...

Embodiment 2

[0055] The preparation method of resin-based graphene heat-conducting composite material comprises the following steps:

[0056] S1: Modification of graphene quantum dots

[0057] In 200g of ethylenediamine, 2.5g of graphene oxide quantum dots, 0.75g of 4-dimethylaminopyridine and 0.75g of 1-(3-dimethylaminopropyl)-3-ethylcarbodiethylene were sequentially added Amine hydrochloride, ultrasonically dispersed for 45 minutes, reacted at 90°C for 30h, cooled the reaction mixture to room temperature, filtered and washed with water, and dried at 60°C for 18h to obtain ethylenediamine grafted graphene oxide; 3g of ethylenediamine-grafted graphene oxide and 2g of sodium dodecylbenzenesulfonate were placed in 200g of deionized water, ultrasonically dispersed for 45min, left to stand for 18h, filtered and washed with water, and dried at 60°C for 18h to obtain Graphene oxide modified by sodium dodecylbenzenesulfonate;

[0058] S2: Preparation of polymer resin nanopowder

[0059] Add 20...

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Abstract

The invention relates to the technical field of heat conduction plastics, in particular to a resin-based graphene heat conduction composite material and a method for preparing the same. The resin-based graphene heat conduction composite material comprises, by weight, 100-300 parts of ethylenediamine, 0.1-5 parts of oxidized graphene quantum dots, 0.5-1 part of 4-dimethylaminopyridine, 0.5-1 part of 1-(3-dimethylamino propyl)-3-ethyl carbodiimide hydrochloride, 0.1-3 parts of anionic surfactants, 100-300 parts of deionized water, 100-300 parts of macromolecule resin and 100-300 parts of grinding balls. The resin-based graphene heat conduction composite material and the method have the advantages that the graphene quantum dots can be dispersed in the macromolecule resin at nano-level, is excellent in macromolecule resin compatibility and can be stably dispersed in resin matrixes, accordingly, the heat conductivity coefficient of the resin-based graphene heat conduction composite material can be greatly increased, and the radiating performance of charging piles can be improved when the resin-based graphene heat conduction composite material is applied to plastic sleeve components of the charging piles.

Description

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Claims

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Application Information

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Owner YAHAM OPTOELECTRONICS CO LTD
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