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Graphene polymer composite heat-conduction plastic and preparation method

A technology of olefinic polymers and thermally conductive plastics, applied in the field of graphite polymer composite thermally conductive plastics and its preparation, can solve the problems of high price of thermally conductive plastics, expensive graphene, and difficulty in wide-scale application, and achieve basic mechanical properties and processing properties Small impact, good initial thermal conductivity, and the effect of reducing agglomeration

Active Publication Date: 2017-12-29
金华碳力新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because graphene is very expensive, the price of thermally conductive plastics prepared with highly filled graphene is also very high, making it difficult to apply on a large scale

Method used

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  • Graphene polymer composite heat-conduction plastic and preparation method

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Embodiment 1

[0022] A graphene polymer composite thermally conductive plastic, in parts by weight, said polygraphene polymer composite thermally conductive plastic comprises 100 parts of polymer matrix resin, 2.5 parts of modified graphene, 0.3 parts of antioxidant, and 0.3 parts of additives. The polymer matrix resin is nylon 6 (PA6), the antioxidant is 0.15 parts of antioxidant 1010, and 0.15 parts of antioxidant 168. The auxiliary agent is ethylene bis stearamide, and the modified graphene is styrene maleic anhydride binary copolymer grafted modified multilayer graphene, and the styrene unit and maleic anhydride in the styrene maleic anhydride binary copolymer The weight ratio of the units is 1:2.

[0023] A method for preparing a graphene polymer composite thermally conductive plastic, comprising the steps of:

[0024] Step 1: prepare modified graphene;

[0025] Step 2: Preparation of graphene-polymer composite heat-conducting plastics: Weigh 100 parts of polymer matrix resin, 2.5 pa...

Embodiment 2

[0030] A graphene polymer composite heat-conducting plastic. In parts by weight, the polygraphene polymer composite heat-conducting plastic includes 100 parts of polymer matrix resin, 3 parts of modified graphene, 0.4 parts of antioxidant, and 0.3 parts of auxiliary agent. The polymer matrix resin is nylon 12 (PA12). The antioxidant is 0.2 part of antioxidant 1076 and 0.2 part of antioxidant 626. The additive is silicone powder. The modified graphene is a styrene-maleic anhydride binary copolymer grafted modified multi-layer graphene, and the weight ratio of the styrene unit to the maleic anhydride unit in the binary copolymer is 1:2.

[0031] A method for preparing a graphene polymer composite thermally conductive plastic, comprising the steps of:

[0032] Step 1: prepare modified graphene;

[0033] Step 2: Preparation of graphene polymer composite heat-conducting plastic: weigh 100 parts of polymer matrix resin, 3 parts of modified graphene, 0.4 parts of antioxidant, and ...

Embodiment 3

[0038] A graphene polymer composite thermally conductive plastic, in parts by weight, said polygraphene polymer composite thermally conductive plastic comprises 100 parts of polymer matrix resin, 3 parts of modified graphene, 0.4 part of antioxidant, and 0.5 part of auxiliary agent. The polymer matrix resin is polybutylene terephthalate PBT. The antioxidant is 0.2 part of antioxidant 1010 and 0.2 part of antioxidant 168. The auxiliary agent is ethylene bis stearamide. The modified graphene is a styrene maleic anhydride binary copolymer grafted modified multilayer graphene, and the weight ratio of styrene and maleic anhydride units in the binary copolymer is 1:2.

[0039] A method for preparing a graphene polymer composite thermally conductive plastic, comprising the steps of:

[0040] Step 1: prepare modified graphene;

[0041] Step 2: Preparation of graphene-polymer composite heat-conducting plastic: Weigh 100 parts of polymer matrix resin, 3 parts of modified graphene, 0....

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Abstract

The invention discloses a graphene polymer composite heat-conduction plastic and a preparation method. The graphene polymer composite heat-conduction plastic comprises the following components in parts by weight: 100 parts of polymer matrix resin, 2-10 parts of modified graphene, 0.1-1 part of an antioxidant. The preparation method of the graphene polymer composite heat-conduction plastic comprises the following steps: step 1, preparing modified graphene; and step 2, preparing the graphene polymer composite heat-conduction plastic. Dispersity of the graphene in a resin matrix is improved, graphene agglomeration is reduced, the high-heat-conductivity heat-conduction plastic can be obtained when the content of the graphene is low, high heat conductivity can be achieved by the small content of the graphene only, influence to basic mechanical property and processing property of the material is low, and the technical requirement on modern electronic packaging can be met well.

Description

technical field [0001] The invention relates to the technical field of heat-conducting plastics, in particular to a graphite polymer composite heat-conducting plastic and a preparation method thereof. Background technique [0002] Thermally conductive plastic has the advantages of easy processing and molding, high degree of freedom in product design, and low cost. It is an excellent substitute for traditional aluminum alloy thermally conductive materials. In recent years, the explosive growth of LED energy-saving products and high-precision electronic products has further stimulated the demand for high-performance thermally conductive plastics. Due to the low thermal conductivity of plastic itself, thermally conductive plastics are usually filled with thermally conductive materials such as metal oxide powder, metal nitride powder, and graphite powder to give them thermal conductivity. However, due to the low thermal conductivity of these fillers, a very high filling amount ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L67/02C08L77/06C08K13/06C08K9/04C08K3/04C08K5/20
CPCC08K3/04C08K5/20C08K9/08C08K13/06C08L67/02C08L77/02C08L77/06C08L2203/206C08L2205/02C08L2205/025C08L2205/035C08L83/04
Inventor 洪利杰江晓栋
Owner 金华碳力新材料科技有限公司
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