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Foaming composite material with high thermal conductivity

A composite material, high thermal conductivity technology, applied in the field of composite materials, can solve the problems of poor thermal conductivity and high energy consumption

Inactive Publication Date: 2021-09-10
上海方乾科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the prior art, high-density polyethylene and rubber foaming materials are commonly used as foaming materials, which have poor thermal conductivity, and their thermal conductivity is only 0.39W / (m.K), so they are limited in many application fields and consume high energy consumption.

Method used

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  • Foaming composite material with high thermal conductivity
  • Foaming composite material with high thermal conductivity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: Take by weight respectively: 120 parts of high-density polyethylene, 13 parts of graphite, 20 parts of carbon fiber, 10 parts of silane coupling agent, 10 parts of flame retardant, 7 parts of softening plasticizer, 8 parts of toughening agent and 13 parts of antioxidant;

Embodiment 2

[0023] Example 2: 120 parts of high-density polyethylene, 14 parts of graphite, 22 parts of carbon fiber, 10 parts of silane coupling agent, 10 parts of flame retardant, 7 parts of softening plasticizer, 8 parts of toughening agent and 13 parts of antioxidant

Embodiment 3

[0024] Embodiment 3: Weigh respectively by weight: 120 parts of high-density polyethylene, 15 parts of graphite, 25 parts of carbon fiber, 10 parts of silane coupling agent, 10 parts of flame retardant, 7 parts of softening plasticizer , 8 parts of toughening agent and 13 parts of antioxidant.

[0025] Take the formula proportions in the above-mentioned embodiment 1, implementation 2 and embodiment 3, and make a high thermal conductivity foaming composite material according to the following steps, the specific steps are as follows:

[0026] Step 1, graphite and carbon fiber pretreatment: first treat with nitric acid, add alcohol, treat at 130-135°C for 4-5h, then add silane coupling agent, treat at 150-155°C for 4h-5h, and finally pass The pulverizer is pulverized into a powder, and the powdery mixture A is obtained for subsequent use;

[0027] Step 2, stirring and mixing: the powdery mixture A in step 1, high-density polyethylene placement, flame retardant, softening plastic...

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Abstract

The invention relates to the technical field of composite materials, in particular to a foaming composite material with high thermal conductivity. The foaming composite material comprises high-density polyethylene, graphite, carbon fibers, a silane coupling agent, a flame retardant, a softening plasticizer, a flexibilizer and an antioxidant. The raw materials are weighed according to the following parts by weight: 105 to 130 parts of high-density polyethylene, 13 to 15 parts of graphite, 20 to 25 parts of carbon fiber, 8 to 12 parts of silane coupling agent, 11 to 12 parts of flame retardant, 6 to 8 parts of softening plasticizer, 7 to 9 parts of flexibilizer and 12 to 14 parts of antioxidant. According to the invention, the graphite with high heat conductivity coefficient and the carbon fiber are added into the high-density polyethylene, thus the high-density polyethylene modified material with high thermal conductivity and high strength is prepared, the application field of the product is expanded, and meanwhile, the flame retardant, the softening plasticizer, the flexibilizer and the antioxidant are added in the preparation process of the high-density polyethylene modified material, so that the flame retardance, plasticity and oxidation resistance of the high-density polyethylene modified material are improved.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a foam composite material with high thermal conductivity. Background technique [0002] In the prior art, high-density polyethylene and rubber foaming materials are commonly used as foaming materials, which have poor thermal conductivity, and their thermal conductivity is only 0.39W / (m.K), so they are limited in many application fields and consume high energy consumption. [0003] To sum up, the present invention solves the existing problems by designing a foam composite material with high thermal conductivity. Contents of the invention [0004] The purpose of the present invention is to provide a high thermal conductivity foam composite material to solve the problems raised in the above background technology. [0005] To achieve the above object, the present invention provides the following technical solutions: [0006] A foaming composite material with high ther...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K3/04C08K7/06C08K5/544
CPCC08K3/04C08K7/06C08K5/544C08L2207/062C08L2201/02C08L2201/08C08L2203/14C08L23/06
Inventor 毛寅
Owner 上海方乾科技有限公司
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