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Polyether-ether-ketone composite material and preparation method and application thereof

A polyetheretherketone and composite material technology, applied in the field of polymer materials, can solve the problems of low adhesive strength, poor thermal conductivity, and high processing temperature, and achieve the effects of small thermal expansion coefficient, improved mechanical strength, and good heat resistance.

Inactive Publication Date: 2020-03-24
JIUJIANG TINCI ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the main problems of PEEK in the actual application process are: (1) poor surface adhesion, weak interface bonding with fillers, poor thermal conductivity, easy to cause thermal expansion, thermal deformation and thermal fatigue; (2) wear resistance The performance still cannot meet the needs of the project, such as bracket materials, sealing rings, valves, etc.; (3) The melting temperature of PEEK is 334 ° C, the melting viscosity is high, the processing temperature is high, and the processing technology is unstable
However, the surface of carbon fiber is smooth and inert, and its adhesion to the matrix is ​​poor. Therefore, the interface bonding strength of pure carbon fiber modified PEEK composite material is low, and fiber agglomeration is easy to occur.
When the material is subjected to external force, the carbon fiber is easily pulled out from the matrix, and the load cannot be effectively transmitted through the interface
The above defects seriously affect the comprehensive performance of composite materials and limit the application fields of materials.

Method used

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  • Polyether-ether-ketone composite material and preparation method and application thereof
  • Polyether-ether-ketone composite material and preparation method and application thereof
  • Polyether-ether-ketone composite material and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1-5

[0054] Embodiment 1-5 A kind of polyetheretherketone composite material

[0055] The raw materials of the polyether ether ketone composite material of Examples 1-5 are shown in Table 1; they are prepared by the following method:

[0056] (1) Prepare the raw materials according to the ratio shown in Table 1; among them, the silane coupling agent uses phenyltrimethoxysilane silane coupling agent KA-103, and the antioxidant uses 1010;

[0057] (2) Primary drying: dry the PEEK powder in a vacuum drying oven at 100° C. for 4 hours to obtain dried polyetheretherketone.

[0058] (3) Carbon fiber pretreatment: After diluting the silane coupling agent with an equal volume of paraffin oil, it is fully mixed with the carbon fiber, so that the silane coupling agent is evenly distributed on the surface of the carbon fiber, and the pretreated carbon fiber is obtained.

[0059] (4) High-speed mixing: put the dried polyether ether ketone obtained in step (2), the pretreated carbon fiber obta...

Embodiment 6

[0065] Example 6 A polyether ether ketone composite material

[0066] The raw material composition of the polyether ether ketone composite material of the present embodiment is:

[0067] 6 parts of carbon fiber, 94 kg of polyether ether ketone, 1 kg of phenyltrichlorosilane coupling agent, 1 kg of paraffin oil, 0.4 kg of antioxidant, of which 1 part = 1 kg.

[0068] It is basically prepared according to the same method as in Example 1, except that the carbon fiber is pretreated with phenyltrichlorosilane coupling agent.

Embodiment 7

[0069] Example 7 A polyether ether ketone composite material

[0070] The raw material composition of the polyether ether ketone composite material of the present embodiment is:

[0071] 6 parts of carbon fiber, 94 kg of polyether ether ketone, 1 kg of diphenylsilane coupling agent, 1 kg of paraffin oil, 0.4 kg of antioxidant, of which 1 part = 1 kg.

[0072] It is basically prepared according to the same method as in Example 1, except that the carbon fiber is pretreated with a diphenylsilane coupling agent.

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Abstract

The invention provides a polyether-ether-ketone composite material and a preparation method thereof. The polyether-ether-ketone composite material comprises the components in parts by weight: 90 to 98parts of polyether-ether-ketone, 2 to 10 parts of carbon fibers, 0.5 to 1 part of a silane coupling agent, 0.5 to 1 part of paraffin oil and 0.2 to 0.5 part of an antioxidant. Compared with unmodified polyether-ether-ketone, the polyether-ether-ketone composite material has the mechanical property remarkably improved. Meanwhile, the composite material disclosed by the invention is better in heatresistance and more suitable for being used in a high-temperature environment.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a composite material containing polyetheretherketone and its preparation method and application. Background technique [0002] Polyetheretherketone (PEEK) is a linear aromatic semi-crystalline thermoplastic with high temperature resistance, solvent resistance, aging resistance, hydrolysis resistance, high specific strength, specific modulus and other properties, especially at high temperature and high It can still maintain good overall performance in wet and harsh environments, and the amount of deformation is extremely small during use. The above excellent properties make polyether ether ketone the most popular special engineering plastic after fluoroplastics. As a substitute for steel, aluminum, copper, titanium, polytetrafluoroethylene (PTFE) and other high-performance materials, PEEK has been widely used in medicine (such as artificial joints, etc.), automobile...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/16C08L91/06C08K7/06
CPCC08L61/16C08L2201/08C08K2201/003C08K2201/004
Inventor 赵经纬江圣龙黄志辉种发瑞
Owner JIUJIANG TINCI ADVANCED MATERIALS CO LTD
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