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Preparation method of carbon fiber reinforced polyether ether ketone composite material

A technology of polyether ether ketone and composite materials, which is applied in the fields of carbon fiber, fiber treatment, chemical instruments and methods, etc. It can solve the problems of difficult three-dimensional weaving technology, high difficulty in cleaning machines, high viscosity of PEEK resin, etc., and achieve excellent mechanical properties and thermal stability, flexible processing, and low elastic modulus

Inactive Publication Date: 2015-04-01
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention patent application with the application number 200910051159.5 discloses a short carbon fiber reinforced PEEK composite material injection molding method, but the PEEK resin has a high viscosity, which makes it difficult to clean the machine, the mold preheating process is complicated, and the strength of the short fiber product is not high (bending strength 400~800MPa), there will be some restrictions on application
At present, some patents disclose the preparation method of three-dimensional weaving carbon fiber / PEEK composite material, but the three-dimensional weaving technology is difficult, PEEK fiber is generally imported, the cost is high, and the mechanical properties of the product are not high (500-1100MPa)

Method used

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  • Preparation method of carbon fiber reinforced polyether ether ketone composite material
  • Preparation method of carbon fiber reinforced polyether ether ketone composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weave the carbon fiber into a 2D woven plain weave preform, the weaving angle θ=90°, and then soak the woven preform in acetone for 48 hours, and then use a mixed acid: (sulfuric acid: nitric acid = 3:2) to ultrasonicate for 20 minutes , its microscopic appearance is as figure 1 As shown, rinse with deionized water and dry. Dissolve diphenyl sulfone (DPS) in an appropriate amount of acetone and stir. After the diphenyl sulfone (DPS) is fully dissolved, add polyetheretherketone (PEEK) powder in a proportion of 80% by mass, fully stir, and steam the acetone and then dry the powder. Dry to obtain a polyetheretherketone / diphenylsulfone (PEEK / DPS) mixture. Weigh out an appropriate amount of the mixture, and hot press it at 390°C and pressure 3 MPa to form a pure polyetheretherketone resin sheet, during which diphenyl sulfone (DPS) sublimates. According to the carbon fiber (CF) volume fraction of 45% and polyetheretherketone (PEEK) volume fraction of 65%, the obtained dry p...

Embodiment 2

[0024] The carbon fiber is woven into a 2D woven plain weave preform, the braiding angle θ=90°, and then the woven preform is soaked in acetone for 48 hours, and then ultrasonicated with mixed acid (sulfuric acid: nitric acid = 3:2) for 20 minutes. Rinse with deionized water and dry. Dissolve diphenyl sulfone (DPS) in an appropriate amount of acetone and stir. After the diphenyl sulfone (DPS) is fully dissolved, add polyetheretherketone (PEEK) powder in a proportion of 80% by mass, fully stir, and steam the acetone and then dry the powder. Dry to obtain a polyetheretherketone / diphenylsulfone (PEEK / DPS) mixture. Weigh out an appropriate amount of the mixture, and hot press at 390°C and pressure 4 MPa to form a pure polyetheretherketone (PEEK) resin sheet, and diphenyl sulfone sublimes during the hot pressing process. According to the carbon fiber (CF) volume fraction of 60% and the polyetheretherketone (PEEK) volume fraction of 40%, the obtained dry preform and the prepared po...

Embodiment 3

[0026] The carbon fiber is woven into a 2D woven plain weave preform, the braiding angle θ=90°, and then the woven preform is soaked in acetone for 48 hours, and then ultrasonicated with mixed acid (sulfuric acid: nitric acid = 3:2) for 20 minutes. Rinse with deionized water and dry. Dissolve diphenyl sulfone (DPS) in an appropriate amount of acetone and stir. After the diphenyl sulfone (DPS) is fully dissolved, add polyetheretherketone (PEEK) powder in a proportion of 80% by mass, fully stir, and steam the acetone and then dry the powder. Dry to obtain a polyetheretherketone / diphenylsulfone (PEEK / DPS) mixture. Weigh out an appropriate amount of the mixture, and heat-press it at 390°C under a pressure of 4 MPa to form a pure polyetheretherketone (PEEK) resin sheet, during which diphenyl sulfone sublimates. According to the carbon fiber (CF) volume fraction of 70% and the polyetheretherketone (PEEK) volume fraction of 30%, the obtained dry preform and the prepared polyethereth...

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Abstract

The invention discloses a preparation method of a carbon fiber reinforced polyether ether ketone composite material. The method disclosed by the invention comprises: weaving carbon fibers to a 2D (Two-Dimensional) woven plain or twill preform, then, soaking the woven preform in acetone for 48 hours, ultrasonically treating the preform for 20 minutes through a mixed acid of sulfuric acid and nitric acid, cleaning the preform through deionized water and drying the preform; dissolving diphenyl sulfone in a proper amount of acetone, then adding polyether ether ketone powder, evaporating out the acetone and drying the powder to obtain a polyether ether ketone / diphenyl sulfone mixture; weighing a proper amount of mixture, carrying out hot pressing on the mixture to obtain a pure thin polyether ether ketone rein slice at a temperature of 390 DEG C and at a pressure of 3-4 MPa; alternatively paving the dry preform and the thin polyether ether ketone rein slice in a mold according to such a proportion that the carbon fiber volume fraction is 30-70%, heating up to 380-390 DEG C at a speed of 10-15 DEG C / min, preserving heat for 30 minutes, then, pressurizing to 2-3 MPa, and preserving heat for 30 minutes; and cooling a product in the mold at a moderate cooling speed of 10-15 DEG C / min, meanwhile, pressurizing to 4-5 MPa, further maintaining the pressure for 3 hours, and demolding to obtain a woven carbon fiber / polyether ether ketone composite material.

Description

technical field [0001] The invention relates to a preparation method of a 2D carbon fiber reinforced polyether ether ketone composite material. technical background [0002] Metal fixation devices have been widely used clinically because of their high strength and many advantages such as immediate stability for fractures. However, the low histocompatibility of the metal internal fixation reduces its mechanical stability in the bone; the shielding of the metal material causes many fatal defects such as the loss of the inspection field of view. [0003] Carbon fiber is made of high carbon content and has the characteristics of general carbon materials, such as high temperature resistance, friction resistance and corrosion resistance. At the same time, its shape has significant anisotropy, softness, and can be processed into various fabrics. Direction exhibits high intensity. Carbon fiber has become the most commonly used reinforcement material due to its excellent tissue com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/16C08K7/06C08K3/04D06M11/55D06M11/64D06M13/127B29C70/22B29C70/40B32B27/06B32B27/12D06M101/40
Inventor 敖玉辉尚垒石飞杜威峰张会轩
Owner CHANGCHUN UNIV OF TECH
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