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Surface bioactive calcium-phosphate layer of carbon fiber reinforced polyetheretherketone composite material and preparation thereof

A technology of bioactive calcium and composite materials, which is applied in the field of bioactive calcium phosphorus layer and preparation on the surface of three-dimensional woven carbon fiber reinforced polyether ether ketone composite materials, can solve the problems of high application value and achieve improved biological level and good therapeutic effect , good surface bioactive effect

Inactive Publication Date: 2010-04-28
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports at home and abroad on the surface bioactive modification of three-dimensional braided carbon fiber reinforced polyetheretherketone composites.
Although its research is quite difficult, it has great application value

Method used

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  • Surface bioactive calcium-phosphate layer of carbon fiber reinforced polyetheretherketone composite material and preparation thereof

Examples

Experimental program
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Effect test

example 1

[0025] The preparation method of three-dimensional braided carbon fiber reinforced polyether ether ketone composite material is as follows: first, carbon fiber and polyetheretherketone fiber are braided three-dimensionally and four-way, and then the fiber fabric is heated to 140-180 °C, vacuumed continuously, and kept for 1.5 hours, and then Rise to 380°C at a rate of 20°C / min and keep warm for 30min. Pressurize again at 0.5 MPa, remove the vacuum, continue to maintain the temperature for 30 minutes, and finally lower the temperature slowly, and release the mold when the temperature is lower than the glass transition temperature of polyether ether ketone by 30°C. The selected carbon fiber is PAN-based carbon fiber with a tensile strength of 2800MPa, a tensile modulus of 200GPa, and a density of 1.75g / cm 3 , with a diameter of 6-8 μm, produced by Jilin Carbon Plant.

[0026] The three-dimensional braided carbon fiber-reinforced polyetheretherketone composite material with a fi...

example 2

[0028]The three-dimensional braided carbon fiber reinforced polyether ether ketone composite material with a fiber volume content of 54% (the preparation method is the same as in Example 1) was ultrasonically cleaned with acetone, absolute ethanol, and deionized water at room temperature for 10 minutes each, and then dried. Put it in an atmospheric reactor, adjust the frequency to about 8kHz, output voltage about 8kV, current about 40mA, and discharge time for 120s. Then, at 37.5°C, the composite material was placed in 1.5 times SBF simulated body fluid for biomimetic mineralization. The ion solubility of standard simulated body fluid is [Na + ]: 142.0mM, [K + ]: 5.0mM, [Mg 2+ ]: 2mM, [Ca 2+ ]: 2.5mM, [Cl - ]: 147.8mM, [HCO 3 - ]: 4.2mM, [HPO 4 2- ]: 1.0mM, [SO 4 2- ]: 0.4mM, and with trishydroxyaminomethylmethane (CH 2 Oh) 3 CNH 2 and HCl solution as a slow-release agent to adjust the pH value of the solution to 7.4. Take it out after 28 days of bionic mineraliz...

example 3

[0030] The three-dimensional braided carbon fiber reinforced polyether ether ketone composite material with a fiber volume content of 36% (preparation method is the same as in Example 1) was ultrasonically cleaned with acetone, absolute ethanol, and deionized water at room temperature for 10 minutes each, and then dried. It was placed in the MEVVA source ion implanter, with a Ti rod with a purity of 99% as the working electrode, and the implanted side faced the Ti ion source. The injected beam current density is 0.4~0.5mA·cm -2 , the arc voltage is 70V, the trigger voltage is 80V, and the air pressure in the target chamber is about 8×10 -4 Pa, the injection dose is 5.0×10 15 . Then, at 37.5°C, the composite material was placed in 1.5 times SBF simulated body fluid for biomimetic mineralization for 7 days. The ion solubility of standard simulated body fluid is [Na + ]: 142.0mM, [K + ]: 5.0mM, [Mg 2+ ]: 2mM, [Ca 2+ ]: 2.5mM, [Cl - ]: 147.8mM, [HCO 3 - ]: 4.2mM, [HPO 4...

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Abstract

The invention relates to a surface bioactive calcium-phosphate layer of a carbon fiber reinforced polyetheretherketone composite material and preparation thereof. The three-dimensional braided carbon fiber reinforced polyetheretherketone composite material which is molded through hot-press is ground, polished and subjected to alkaline liquor treatment, complex activating treatment, plasma treatment or ion implantation pretreatment to ensure that the surface of the composite material has activity; and the sample subjected to the pretreatment is immerged in a simulated body fluid for biomimetic mineralization. The depth of the calcium-phosphate layer is 4 to 10 microns and the atomic ratio of the calcium to the phosphate of the calcium-phosphate layer is 1:1-1.5. The surface bioactive calcium-phosphate layer of a carbon fiber reinforced polyetheretherketone composite material and the preparation thereof have the following advantages that: the process is simple; and through the treatment by the method, the composite material has excellent mechanical properties (high shocking and bending strength and modulus near bones), and also has good surface bioactivity so that the composite material as a new bone implant has better therapeutic effect.

Description

technical field [0001] The invention relates to a surface bioactivation modification technology of a carbon fiber reinforced polyetheretherketone composite material, in particular to a three-dimensional braided carbon fiber reinforced polyetheretherketone composite material surface bioactive calcium phosphorus layer and its preparation. Background technique [0002] The use of biomedical products for hard tissues is huge, and with the aging of the population, the market demand will increase year by year. With the improvement of living standards, higher performance requirements are put forward for bone implant materials, and many defects of metal implant materials prompt people to seek a new generation of bone implant materials. To this end, foreign countries have taken the lead in launching composite material products. The excellent properties of 3D braided fiber composites make them the most promising new generation bone implant materials. Polyether ether ketone has quite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/40A61L27/32
Inventor 何芳万怡灶黄远王玉林李皓苗影
Owner TIANJIN UNIV
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