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High-conductivity polyetheretherketone composite material and preparation method thereof

A technology of polyether ether ketone and composite materials, which is applied in the field of high-conductivity polyether ether ketone composite materials, and can solve the problems of carbon nanotube dispersion, interface problems, performance stability, poor conductivity, and limited application range, etc. problem, achieve the effect of improving the interface effect, increasing the filling amount, and avoiding black spots

Inactive Publication Date: 2019-04-16
苏州聚泰新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The highly conductive polyether ether ketone composite materials disclosed in the prior art all improve the dispersion performance of the matrix material and carbon nanotubes by first preparing the masterbatch or selecting a specific processing technology, although the above methods can solve the problem to a certain extent. The dispersion of carbon nanotubes in the matrix, but in practical applications, there are still many obstacles in the non-conductive polymer / carbon nanotube composites, such as the dispersion of carbon nanotubes in the matrix, interface problems and performance stability, etc. None of them have been well solved, and it is impossible to solve the problem of the decline of electrical conductivity and color appearance caused by the agglomeration of carbon nanotubes when used at high temperature, thus limiting its application range

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  • High-conductivity polyetheretherketone composite material and preparation method thereof

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Embodiment 1

[0043] This embodiment provides a highly conductive polyetheretherketone composite material, which consists of the following components in parts by weight:

[0044] 80 parts of PEEK, 10 parts of aramid fiber, 10 parts of grafted modified carbon nanotubes, 5 parts of nano-alumina, 2 parts of silane coupling agent, 0.5 parts of antioxidant, and 1 part of polytetrafluoroethylene.

[0045] Wherein the grafted modified carbon nanotubes are prepared by the following method:

[0046] a. Add coupling agent KH570 to the ethanol aqueous solution with a mass fraction of 50%, adjust the pH to 3.5 with a dilute acid aqueous solution, and prepare a KH570 coupling agent solution with a mass fraction of 30%;

[0047] b. Add 15 parts of carbon nanotubes, 120 parts of acetone, and 15 parts of KH570 silane coupling agent solution into the reaction vessel, stir evenly, and stir and react at 60°C for 6 hours;

[0048] c, after the reaction is finished, filter, wash with anhydrous acetone, and dry...

Embodiment 2

[0059] This embodiment provides a highly conductive polyetheretherketone composite material, which consists of the following components in parts by weight:

[0060] 100 parts of PEEK, 18 parts of carbon fiber, 15 parts of grafted modified carbon nanotubes, 6 parts of nano-silicon carbide, 4 parts of silane coupling agent, 1 part of antioxidant, 0.5 part of molybdenum disulfide, and 0.5 part of graphite.

[0061] Wherein the grafted modified carbon nanotubes are prepared by the following method:

[0062] a. Add coupling agent KH570 to the ethanol aqueous solution with a mass fraction of 50%, adjust the pH to 3.5 with a dilute acid aqueous solution, and prepare a KH570 coupling agent solution with a mass fraction of 30%;

[0063] b. Add 20 parts of carbon nanotubes, 150 parts of acetone, and 20 parts of KH570 silane coupling agent solution into the reaction vessel, stir evenly, and stir and react at 70°C for 5 hours;

[0064] c, after the reaction is finished, filter, wash with...

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Abstract

The invention provides a high-conductivity polyetheretherketone composite material and a preparation method thereof, and belongs to the field of conductive polymer materials. The high-conductivity polyetheretherketone composite material comprises, by weight, the following raw materials: 80-100 parts of PEEK, 10-20 parts of a reinforced fiber, 10-15 parts of grafted modified carbon nanotube, 3-8 parts of a wear-resistant agent, 2-5 parts of a coupling agent, 0.5-1 part of an antioxidant and 1-2 parts of a lubricant. According to the material, PEEK is used as a base material, and the reinforcingfiber, the carbon nanotube, the wear-resistant agent and the like are added, so that the prepared composite material not only has excellent mechanical properties, high temperature resistance and wearresistance, but also is chemically grafted and modified from the carbon nanotube, so that the composite material has high electrical conductivity and high-temperature appearance color stability.

Description

technical field [0001] The invention relates to the field of polymer conductive materials, in particular to a high-conductivity polyether ether ketone composite material, which can meet the requirement of high conductivity of the material. Background technique [0002] Conductive polymer composites are prepared by incorporating conductive fillers into insulating polymers. Conductive fillers include two categories of metal and carbon. The geometric state and conductive properties of the filler itself affect the electrical properties of composite materials. Carbon-based fillers have been widely used because of their light weight, excellent electrical properties, heat resistance, and high strength. Applications. Carbon nanotubes (CNTs) are a new class of carbon-based fillers, with high aspect ratio, large specific surface area, excellent mechanical properties and unique photoelectric properties, prepared by carbon nanotubes and non-conductive polymers Composite materials, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/16C08L77/10C08L27/18C08K9/06C08K9/04C08K3/04C08K3/22C08K3/30C08K7/06
CPCC08K3/04C08K3/30C08K3/34C08K7/06C08K9/06C08K9/08C08K13/06C08K2003/2227C08K2003/3009C08K2201/001C08K2201/011C08L61/16C08L2201/08C08L2205/16C08K3/041C08L77/10C08L27/18C08K3/22
Inventor 张森金志恒
Owner 苏州聚泰新材料有限公司
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