Graphene heat-conducting plastic and preparation method thereof

A heat-conducting plastic and graphene technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., to achieve the effects of easy operation, simple and easy preparation method, and good thermal conductivity

Inactive Publication Date: 2019-11-22
安徽聚科生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are currently few methods for preparing thermally conductive plastics by mixing graphene, and how to make the prepared thermally conductive plastics inherit the properties of graphene and further improve their own thermal conductivity is the current development demand.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The invention provides a graphene heat-conducting plastic and a preparation method thereof. The graphene heat-conducting plastic is made of the following raw materials in parts by mass: 20-50 parts of heat-conducting filler, 4-10 parts of graphene, and 40-80 parts of plastic substrate 0.5-1.5 parts of surface treatment agent, 0.3-1.2 parts of epoxy adhesive, 0.2-0.5 parts of coupling agent, and 0.1-1 part of plasticizer.

[0023] Specifically, the graphene thermally conductive plastic is made of the following raw materials by mass: 35 parts of thermally conductive filler, 60 parts of plastic substrate, 7 parts of graphene, 1.0 part of surface treatment agent, 0.8 part of epoxy adhesive, coupling 0.4 parts of agent, 0.6 parts of plasticizer.

[0024] Specifically, the plastic substrate includes any one of PPS, PA6 / PA66, LCP, TPE, PC, PP, PPA, PEEK, and the graphene is alkylated graphene, aminated graphene, mercaptolated One or more mixtures of graphene or graphene oxide...

Embodiment 2

[0036] A graphene heat-conducting plastic and a preparation method thereof. The graphene heat-conducting plastic is made of the following raw materials in parts by mass: 20-50 parts of heat-conducting filler, 4-10 parts of graphene, 40-80 parts of plastic substrate, surface treatment 0.5-1.5 parts of epoxy adhesive, 0.3-1.2 parts of epoxy adhesive, 0.2-0.5 parts of coupling agent, and 0.1-1 part of plasticizer.

[0037] Specifically, the graphene thermally conductive plastic is made of the following raw materials by mass: 35 parts of thermally conductive filler, 60 parts of plastic substrate, 7 parts of graphene, 1.0 part of surface treatment agent, 0.8 part of epoxy adhesive, coupling 0.4 parts of agent, 0.6 parts of plasticizer.

[0038] Specifically, the plastic substrate includes any one of PPS, PA6 / PA66, LCP, TPE, PC, PP, PPA, PEEK, and the graphene is alkylated graphene, aminated graphene, mercaptolated One or more mixtures of graphene or graphene oxide.

[0039] Speci...

Embodiment 3

[0050] A graphene heat-conducting plastic and a preparation method thereof. The graphene heat-conducting plastic is made of the following raw materials in parts by mass: 20-50 parts of heat-conducting filler, 4-10 parts of graphene, 40-80 parts of plastic substrate, surface treatment 0.5-1.5 parts of epoxy adhesive, 0.3-1.2 parts of epoxy adhesive, 0.2-0.5 parts of coupling agent, and 0.1-1 part of plasticizer.

[0051] Specifically, the graphene thermally conductive plastic is made of the following raw materials by mass: 35 parts of thermally conductive filler, 60 parts of plastic substrate, 7 parts of graphene, 1.0 part of surface treatment agent, 0.8 part of epoxy adhesive, coupling 0.4 parts of agent, 0.6 parts of plasticizer.

[0052] Specifically, the plastic substrate includes any one of PPS, PA6 / PA66, LCP, TPE, PC, PP, PPA, PEEK, and the graphene is alkylated graphene, aminated graphene, mercaptolated One or more mixtures of graphene or graphene oxide.

[0053] Speci...

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PUM

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Abstract

The invention discloses graphene thermal conductive plastic and a preparation method thereof. The method comprises the following steps: firstly, stirring and mixing a whisker-shaped heat-conducting filler and a surface treatment agent so allow surface treatment agent to complete surface treatment of the heat-conducting filler; after the treatment is finished, heating an epoxy adhesive to obtain amaterial mixture; mixing the obtained material mixture with graphene and a coupling agent to obtain a heat-conducting material mixture; mixing the obtained heat-conducting material mixture with a plastic base material and a plasticizer; uniformly mixing the mixture in a mixer; then feeding the mixture into a double-screw extruder for extrusion and granulation to obtain the graphene heat-conductingplastic. According to the plastic and the method, good thermal conductivity of the graphene and the thermal conductivity of the heat-conducting filler effectively increase the thermal conductivity ofthe prepared plastic so as to meet the use thermal conductivity requirement, and the whisker-shaped heat-conducting filler further increases the thermal conductivity coefficient of the filler when the filler is mixed with the graphene and the plastic base material.

Description

technical field [0001] The invention belongs to the technical field of plastic material preparation, and in particular relates to a graphene thermally conductive plastic and a preparation method thereof. Background technique [0002] As an important polymer compound material, plastic has a wide range of applications. Unlike metal materials, which are difficult to process, high cost, and low production efficiency, plastics have the advantages of high design freedom, easy processing, and low cost. Therefore, the application of plastics instead of metals continues to expand internationally. However, plastics also have shortcomings. Compared with the high thermal conductivity of metals, their thermal conductivity is generally poor, which limits the application of plastics in the field of heat conduction and heat dissipation. [0003] Graphene is a honeycomb planar film formed by sp2 hybridization of carbon atoms. It is a quasi-two-dimensional material with only one atomic layer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/04C08L77/02C08L77/06C08L101/12C08L101/00C08L69/00C08L23/12C08L77/00C08L61/16C09K5/14
CPCC08K7/04C08K7/08C08K7/10C08K9/04C08K9/06C08K9/08C08L77/02C08L77/06C08L2205/02C08L2207/04C09K5/14C08K3/042C08L81/04C08L101/12C08L101/00C08L69/00C08L23/12C08L77/00C08L61/16
Inventor 侯金波张明龙瞿佰华罗勇锋苏耿
Owner 安徽聚科生物科技有限公司
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