Preparation method of graphene modified polyether-ether-ketone composite material

A graphene modification, polyetheretherketone technology, applied in the field of composite materials, can solve the problems of large loss, high energy consumption, low preparation efficiency, etc., and achieve the effects of reducing loss, saving energy, and improving thermal conductivity.

Pending Publication Date: 2020-05-19
博蔓医疗科技(常州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The preparation method of polyether ether ketone composite material at the present stage has low preparation efficiency, high energy consumption, and large loss. Therefore, a preparation method is needed that can process high-hardness materials while reducing energy consumption and improving work efficiency.

Method used

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  • Preparation method of graphene modified polyether-ether-ketone composite material
  • Preparation method of graphene modified polyether-ether-ketone composite material
  • Preparation method of graphene modified polyether-ether-ketone composite material

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Experimental program
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Effect test

Embodiment 1

[0026] The preparation method of the graphene modified polyether ether ketone composite material of this embodiment includes the following steps:

[0027] Step 1: Weigh each component, weigh in parts by weight and control the properties of each component to meet:

[0028] 100 parts of polyether ether ketone, polyether ether ketone is injection molding grade polyether ether ketone, melt index is 10g / 10min, injection molding grade polyether ether ketone has more excellent mechanical properties and friction and wear resistance;

[0029] 1 part of single-walled carbon nanotubes, carbon nanotubes have good mechanical strength and can effectively increase the mechanical strength of materials;

[0030] Carbon fiber is 5 parts and the aspect ratio is 5:1. Compared with conventional graphite fiber, carbon fiber has better high temperature resistance, friction resistance, electrical conductivity, heat conduction and corrosion resistance, which further increases the high temperature resistance an...

Embodiment 2

[0043] This embodiment is basically the same as embodiment 1, but the difference is that the components in step one are weighed in parts by weight as follows:

[0044] 100 parts of polyether ether ketone, polyether ether ketone is injection molding grade polyether ether ketone, melt index is 50g / 10min;

[0045] 5 parts of multi-walled carbon nanotubes;

[0046] 5 parts of carbon fiber, length to diameter ratio of 10:1;

[0047] 10 parts of graphene, the oxygen content of the graphene is 10%, and the thickness of the graphene sheet is 0.5-5nm;

[0048] 5 parts of cubic boron nitride;

[0049] The coupling agent is 3 parts, and the coupling agent is KH570.

[0050] The graphene modified polyether ether ketone composite material prepared by the method of this embodiment was tested for performance, and the results are shown in Table 2:

[0051]

[0052]

[0053] Table 2

Embodiment 3

[0055] This embodiment is basically the same as embodiment 1, but the difference is that the components in step one are weighed in parts by weight:

[0056] 100 parts of polyether ether ketone, polyether ether ketone is injection molding grade polyether ether ketone, melt index is 30g / 10min;

[0057] 3 copies of multi-walled carbon nanotubes;

[0058] 2 parts of carbon fiber, the aspect ratio of carbon fiber is 7:1;

[0059] 7 parts of graphene, the oxygen content of the graphene is 1-10wt%, and the thickness of the graphene sheet is 0.5-5nm;

[0060] 2 parts of hexagonal boron nitride;

[0061] The coupling agent is 2 parts, and the coupling agent is isopropyl triisostearoyl titanate.

[0062] The graphene modified polyether ether ketone composite material prepared by the method of this embodiment was tested for performance, and the results are shown in Table 3:

[0063]

[0064]

[0065] table 3

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Abstract

The invention discloses a preparation method of a graphene modified polyether-ether-ketone composite material. The preparation method comprises the following steps: step 1, weighing 100 parts by weight of polyether-ether-ketone, 1-5 parts by weight of carbon nanotubes, 1-5 parts by weight of carbon fibers, 5-10 parts by weight of graphene, 1-5 parts by weight of boron nitride and 0.5-3 parts by weight of a coupling agent; step 2, preparing graphene into graphene powder; 3, stirring and mixing polyether-ether-ketone, carbon fibers, the graphene powder, carbon nanotubes and thecoupling agent through a jet mill; and 4, feeding an obtained material from a main feed opening of a double-screw extruder, and mixing. According to the invention, the one-dimensional carbon nanotubes, the carbon fibers, the two-dimensional graphene and the boron nitride are added to form a three-dimensional network structure; the heat conduction performance, the frictional wear performance and the mechanical property of the polyether-ether-ketone composite material are improved, the jet mill is used for stirring and mixing, the crushing strength is high, and the combined operation of crushing, drying, crushing, mixing and the like can be realized in the machine; the energy utilization rate is high, energy is saved and loss is reduced.

Description

Technical field [0001] The invention relates to the technical field of composite materials, in particular to a method for preparing graphene modified polyether ether ketone composite materials. Background technique [0002] Poly-ether-ether-ketone (PEEK for short) is a fully aromatic semi-crystalline thermoplastic engineering plastic first developed by British ICI in 1978. Its macromolecular chain contains rigid benzene rings and is flexible. The ether bond and carbonyl group have a regular structure. Its melting point is 334°C, and it has high mechanical strength, high temperature resistance, impact resistance, flame retardancy, acid and alkali resistance, hydrolysis resistance, abrasion resistance, fatigue resistance, radiation resistance and good electrical properties. Because PEEK has excellent comprehensive properties, it can replace traditional materials such as metals and ceramics in many special fields. The plastic's high temperature resistance, self-lubrication, wear r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/16C08K13/04C08K7/06C08K3/04C08K3/38B29B9/06
CPCC08K13/04C08K7/06C08K3/041C08K3/042C08K3/38B29B9/06C08K2003/385C08K2201/011C08K2201/003C08K2201/004C08K2201/001C08L61/16
Inventor 张荣伟何大方
Owner 博蔓医疗科技(常州)有限公司
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