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Alpha-phase nano-alumina reinforced polyetheretherketone biocomposite and preparation method thereof

A nano-alumina, polyetheretherketone technology, applied in drug delivery, tissue regeneration, pharmaceutical formulations, etc., can solve the problems of serious agglomeration effect, poor interface compatibility, and unsatisfactory performance, and achieve good application prospects and high stability. The effect of excellent biocompatibility

Active Publication Date: 2021-11-23
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems of poor interfacial compatibility, serious agglomeration effect and unsatisfactory performance of existing polyetheretherketone composite materials, and provide a new modification and molding method of polyetheretherketone biocomposites

Method used

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  • Alpha-phase nano-alumina reinforced polyetheretherketone biocomposite and preparation method thereof
  • Alpha-phase nano-alumina reinforced polyetheretherketone biocomposite and preparation method thereof
  • Alpha-phase nano-alumina reinforced polyetheretherketone biocomposite and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 85g of polyether ether ketone powder with a particle size of 50 μm, 15 g of α nano-alumina powder with a particle size of 30 nm, 1 g of polytetrafluoroethylene powder with a particle size of 15 μm, and 5 g of hydroxyapatite with a particle size of 60 nm. Put each weighed raw material into a vacuum drying oven, and dry at 120° C. for 12 hours until the moisture is completely removed, and set aside.

[0025] Add 100 mL of absolute ethanol to the beaker at room temperature, then add the dried α nano-alumina powder, and magnetically stir at a speed of 500 r / min for 1 h to obtain a suspension. Then slowly add other dry raw materials (including polyetheretherketone powder, polytetrafluoroethylene powder, hydroxyapatite, the same below) and 2g of silane coupling agent KH560 into the suspension, and continue stirring at the same speed at room temperature After 1 h, a polyether ether ketone / alumina suspension was obtained. The suspension was placed in an ultrasonic water ...

Embodiment 2

[0028] Weigh 95g of polyether ether ketone powder with a particle size of 50 μm, 5 g of α nano-alumina powder with a particle size of 30 nm, 1 g of polytetrafluoroethylene powder with a particle size of 15 μm, and 5 g of hydroxyapatite with a particle size of 60 nm. Put each weighed raw material into a vacuum drying oven, and dry at 150° C. for 3 hours until the moisture is completely removed, and set aside.

[0029] Add 100 mL of absolute ethanol to the beaker at room temperature, then add the dried α nano-alumina powder, and stir magnetically at a speed of 500 r / min for 1 h to obtain a suspension. Then other dried raw materials and 2 g of silane coupling agent KH560 were slowly added to the suspension, and stirring was continued at room temperature for 1 h at the same speed to obtain a polyether ether ketone / alumina suspension. The suspension was placed in an ultrasonic water bath device, and ultrasonically treated at room temperature at a frequency of 50-60KHz for 2h. The mi...

Embodiment 3

[0032] Weigh 85g of polyether ether ketone powder with a particle size of 50 μm, 15 g of α nano-alumina powder with a particle size of 200 nm, 1 g of polytetrafluoroethylene powder with a particle size of 15 μm, and 5 g of hydroxyapatite with a particle size of 60 nm. Put each weighed raw material into a vacuum drying oven, and dry at 120° C. for 12 hours until the moisture is completely removed, and set aside.

[0033] Add 100 mL of absolute ethanol to the beaker at room temperature, then add the dried α nano-alumina powder, and magnetically stir at 800 r / min for 0.5 h to obtain a suspension. Then other dried raw materials and 2g of silane coupling agent KH560 were slowly added to the suspension, and stirring was continued at room temperature at the same speed for 0.5h to obtain a polyether ether ketone / alumina suspension. The suspension was placed in an ultrasonic water bath device, and ultrasonically treated at room temperature at a frequency of 50-60KHz for 2h. The mixtur...

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Abstract

The application relates to an α-phase nano-alumina-reinforced polyether ether ketone biocomposite material and a preparation method thereof. Using polyether ether ketone resin as the matrix, α-phase nano-alumina as the mechanical strength enhancement phase, silane coupling agent KH560 as the interface compatibilizer, polytetrafluoroethylene as the lubricant, and hydroxyapatite as the biological activity enhancement phase, the use of Various methods such as magnetic mechanical stirring, ultrasonic blending, graded ball blending, injection molding, etc., have significantly improved the dispersion of reinforced equal particles in the matrix, and finally obtained high temperature resistance, high strength, high stability and excellent performance. Biocompatible polyether ether ketone biocomposites.

Description

technical field [0001] The invention relates to the technical field of composite materials, especially biomaterials, in particular to a polyetheretherketone biocomposite material reinforced by α-phase nano-alumina and a preparation method thereof. Background technique [0002] Orthopedic implants are very common in clinical practice and are mainly used in cases of irreparable bone loss due to trauma, disease, aging, congenital abnormalities and surgical resection. At present, metal materials such as stainless steel, titanium and their alloys are common orthopedic substitute materials. These metal materials have good corrosion resistance, mechanical properties and biocompatibility, but there are also some defects, such as stress after implantation into the human body. Shielding effect (when two or more materials with different stiffnesses bear external force together, the material with higher stiffness will bear more load, while the material with lower stiffness only needs to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L27/44A61L27/46A61L27/50A61L27/54
CPCA61L27/446A61L27/46A61L27/50A61L27/54A61L2400/12A61L2430/02C08L61/16
Inventor 王友法魏天月吴庆知余珣知
Owner WUHAN UNIV OF TECH
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