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Preparation method for modified carbon-fiber-reinforced polyether ether ketone composite material

A polyetheretherketone, fiber-reinforced technology is applied in the field of polymer material preparation, which can solve the problems of carbon fiber surface structure damage, fiber body strength reduction, and inability to continuously produce, etc., to enhance mechanical bonding ability, reduce strength, and improve wettability. Effect

Inactive Publication Date: 2016-01-06
SHANGHAI LEVSON ENTERPRISE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods usually cause some damage to the surface structure of carbon fibers, resulting in a certain decrease in the strength of the fiber body; at the same time, these methods also have the disadvantages of small production capacity, continuous production, and serious pollution.

Method used

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  • Preparation method for modified carbon-fiber-reinforced polyether ether ketone composite material
  • Preparation method for modified carbon-fiber-reinforced polyether ether ketone composite material
  • Preparation method for modified carbon-fiber-reinforced polyether ether ketone composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Surface activation of carbon fiber

[0032] Use acetone as the extraction solution, heat to 80°C, soak the carbon fiber tow in the extraction solution, ultrasonicate for 2 hours, and mechanically stir for 2 hours, then filter and rinse with a large amount of deionized water, and dry to obtain degummed carbon fiber;

[0033] Soak 100 g of degummed carbon fibers in 5 L of 1.5% water / p-phenylenediamine mixed solution (p-phenylenediamine 0.69 mol), heat to 80° C., and mechanically stir. While stirring, slowly add 40 g (0.345 mol) of isoamyl nitrite. After completion, continue to stir at 80°C for 12 hours, filter and rinse with a large amount of deionized water to obtain aniline-activated carbon fibers;

[0034] (2) Nanoparticles loaded on carbon fiber surface

[0035] 1g of graphene is dispersed in 5L of water by ultrasonic method, 100g of aniline activated carbon fiber is soaked in the graphene dispersion liquid, heated to 80 ℃ and under the condition of stirring, sl...

Embodiment 2

[0044] (1) Surface activation of carbon fiber

[0045] Use acetone / N'N-dimethylformamide mixed solution as the extraction solution, heat to 75°C, soak the carbon fiber tow in the extraction solution, stir it mechanically for 8 hours, then filter and rinse with a large amount of deionized water, and dry it to get Degumming carbon fiber;

[0046] Soak 100 g of degummed carbon fibers in 5 L of 3% water / p-phenylenediamine (1.38 mol p-phenylenediamine) mixed solution, heat to 90° C., and stir mechanically. Under stirring conditions, slowly add 80 g (0.69 mol) of isoamyl nitrite. After completion, continue to stir at 90° C. for 12 h, filter and rinse with a large amount of deionized water to obtain aniline-activated carbon fibers.

[0047] (2) Nanoparticles loaded on carbon fiber surface

[0048] Disperse 1g of multi-walled carbon nanotubes in 5L of water by ultrasound, soak 100g of aniline-activated carbon fibers in the graphene dispersion, heat to 80°C and slowly add 0.5g of is...

Embodiment 3

[0057] (1) Surface activation of carbon fiber

[0058] Use acetone as the extraction solution, heat to 85°C, soak the carbon fiber tow in the extraction solution, ultrasonicate for 2 hours, then filter and rinse with a large amount of deionized water, and dry to obtain the degummed carbon fiber;

[0059] Soak 100 g of degummed carbon fiber in 5 L of 2.5% water / p-phenylenediamine mixture (1.16 mol p-phenylenediamine), heat to 70° C., and stir mechanically. Under stirring conditions, 67.7 g (0.58 mol) of isoamyl nitrite was slowly added. After completion, continue to stir at 70°C for 12 hours, filter and rinse with a large amount of deionized water to obtain aniline-activated carbon fibers;

[0060] (2) Nanoparticles loaded on carbon fiber surface

[0061] Disperse 1g of graphene oxide in 5L of water by ultrasonic method, soak 100g of aniline activated carbon fiber in the dispersion of graphene, heat to 75°C and slowly add 0.5g of isoamyl nitrite while stirring, And stirring ...

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Abstract

The invention provides a preparation method for a modified carbon-fiber-reinforced polyether ether ketone composite material. The method comprises the steps that 1, carbon fiber tows are infiltrated in an extracting solution of organic solvent to obtain degummed carbon fibers, the degummed carbon fibers are infiltrated in a mixed solution of water and p-phenylenediamine, isoamyl nitrite is added, and then stirring, filtering and washing are performed; 2, carbon nanoparticles are dispersed in water through an ultrasonic method, the carbon fibers are infiltrated in a dispersion solution of the carbon nanoparticles, isoamyl nitrite is added, and then stirring, filtering and washing are performed; 3, mixed raw materials of polyether ether ketone and processing aids and the modified carbon fibers are placed in a two-screw extruder, melting extruding and pelletizing are performed, and then the composite material is obtained. According to the preparation method for the modified carbon-fiber-reinforced polyether ether ketone composite material, the carbon fibers are activated through a diazonium salt reaction, the carbon nanoparticles are loaded on the surfaces of the carbon fibers, therefore, the carbon fiber surface activity is improved, and the infiltration performance of the fibers and resin is improved; the modified carbon fibers and the PEEK resin have the better mechanical bonding force, and the mechanical properties such as the stretching property of the composite material can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of polymer material preparation, and in particular relates to a preparation method of a modified carbon fiber reinforced polyetheretherketone (PEEK) composite material. Background technique [0002] Polyetheretherketone (PEEK) resin is a special engineering plastic with excellent performance. Compared with other special engineering plastics, it has more significant advantages. , Flame retardant, peel resistance, abrasion resistance, radiation resistance, etc., super mechanical properties make it can be used in high-end machinery, automobiles, nuclear engineering and aviation and other fields. Therefore, polyetheretherketone (PEEK) resin is one of the preferred high-end resins in the field of composite materials. [0003] Carbon fiber is currently the most commonly used high-performance resin-based composite material reinforcement, which has the advantages of low density, high specific strength, high specifi...

Claims

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Application Information

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IPC IPC(8): C08L61/16C08K9/04C08K9/00C08K7/06B29C47/92B29C48/92
Inventor 李旦
Owner SHANGHAI LEVSON ENTERPRISE GRP
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