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High-wear-resistance and high-thermal-conductivity composite material as well as a preparation method and application thereof

A composite material, high thermal conductivity technology, applied in the field of plastic production, can solve problems such as limiting the application field of materials and affecting the appearance of materials, achieving good industrial application prospects, simple process flow, and ensuring the effect of friction resistance

Pending Publication Date: 2021-11-23
JIANGSU ZHONGKE RUISAI POLLUTION CONTROL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composite material uses copper powder as a thermally conductive filler. Although it can impart excellent thermal conductivity, the copper powder will be oxidized to form copper oxide during processing or use, causing a large number of black spots to appear on the surface of materials such as modified PEEK, which affects the quality of the material. Appearance, which greatly limits the field of application of the material

Method used

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  • High-wear-resistance and high-thermal-conductivity composite material as well as a preparation method and application thereof
  • High-wear-resistance and high-thermal-conductivity composite material as well as a preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] This embodiment provides a composite material with high wear resistance and high thermal conductivity and a preparation method thereof. The composite material includes 20wt% molybdenum disulfide / reduced graphene oxide three-dimensional composite material and 80wt% PEEK.

[0058] The preparation method comprises the following steps:

[0059] (1) Disperse 100mg of graphene oxide in water and ultrasonically treat it for 1h to obtain a graphene oxide dispersion; mix 0.4g of sodium molybdate and 0.72g of thiourea (that is, the molar ratio of sulfur source to molybdenum source is 5:1) with the The graphene oxide dispersion liquid is mixed, and the ratio of sodium molybdate and the graphene oxide in the mixing process is 0.09:1mol / g, after mixing, stir for 1h; then transfer to the para-polytetrafluoroethylene reactor, Carrying out hydrothermal reaction at 210°C for 24 hours, washing with water and drying at 80°C to obtain a three-dimensional molybdenum disulfide / reduced graphe...

Embodiment 2

[0062] This embodiment provides a composite material with high wear resistance and high thermal conductivity and a preparation method thereof. The composite material includes 30wt% molybdenum disulfide / reduced graphene oxide three-dimensional composite material and 70wt% PEEK.

[0063] The preparation method is with reference to the preparation method in Example 1, the difference is only: in step (2), the PEEK after pretreatment and step (1) are obtained molybdenum disulfide / reduced graphene oxide three-dimensional composite material according to 7:3 The mass ratio is mixed.

Embodiment 3

[0065] This embodiment provides a composite material with high wear resistance and high thermal conductivity and a preparation method thereof. The composite material includes 40wt% molybdenum disulfide / reduced graphene oxide three-dimensional composite material and 60wt% PEEK.

[0066] The preparation method is with reference to the preparation method in Example 1, the difference is only: in step (2), the PEEK after pretreatment and step (1) are obtained molybdenum disulfide / reduced graphene oxide three-dimensional composite material according to 3:2 The mass ratio is mixed.

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Abstract

The invention provides a high-wear-resistance and high-thermal-conductivity composite material as well as a preparation method and application thereof. The composite material comprises a molybdenum disulfide / reduced graphene oxide three-dimensional composite material and PEEK. According to the composite material, a molybdenum disulfide / reduced graphene oxide three-dimensional composite material is used as a high-thermal-conductivity filler, so that a thermal-conductivity network can be formed in a PEEK matrix, the purpose of improving the thermal conductivity of PEEK is achieved, and the wear resistance of PEEK can also be improved; the preparation method is simple in technological process and has a good industrial application prospect.

Description

technical field [0001] The invention belongs to the technical field of plastic production, and in particular relates to a composite material and its preparation method and application, in particular to a high wear resistance and high thermal conductivity composite material and its preparation method and application. Background technique [0002] As a special engineering plastic, polyetheretherketone (PEEK) has a series of advantages such as high modulus, high strength, corrosion resistance and good dimensional stability. It is widely used in high-tech fields such as aerospace, electronics, energy, and medical treatment. Effectively prevent scratches on the surface of the heat exchange material, thereby obtaining a thermally conductive interface material with good thermal conductivity that can be used stably. The thermal conductivity of PEEK at room temperature is only 0.25W / (m·K), which limits its application in the field of thermal conductivity. In order to improve the the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/16C08K3/30C08K3/04
CPCC08K3/30C08K3/042C08K2003/3009C08L61/16
Inventor 尤胜胜齐丛亮吴傲立
Owner JIANGSU ZHONGKE RUISAI POLLUTION CONTROL ENG