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Polyetheretherketone composite material and bone repairing body as well as preparation method and application thereof

A technology of polyetheretherketone and composite materials, which is applied in prosthetics, medical science, etc., can solve the problems of bone repair materials loosening and bone resorption, slow bone healing speed, poor mechanical compatibility, etc., and reduce the healing time , Stimulate bone growth and shorten bone healing time

Inactive Publication Date: 2012-08-22
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects of poor mechanical compatibility between existing bone repair materials and bone tissue, easy to cause loosening and bone resorption of bone repair materials caused by stress shielding, and too slow bone healing speed, Provided are a fluoroapatite / barium titanate / polyether ether ketone composite material and its preparation method and application, as well as a bone made of the fluoroapatite / barium titanate / polyether ether ketone composite material. Prosthetics and methods for their preparation

Method used

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  • Polyetheretherketone composite material and bone repairing body as well as preparation method and application thereof
  • Polyetheretherketone composite material and bone repairing body as well as preparation method and application thereof
  • Polyetheretherketone composite material and bone repairing body as well as preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0043] 1. Preparation of fluoroapatite / barium titanate / polyether ether ketone composite material

[0044] Raw material: 1kg (10wt%) fluoroapatite powder (particle size is 20 μm), 3kg (30wt%) barium titanate powder (particle size is 20 μm) and 6kg (60wt%) polyetheretherketone powder in a high-speed mixer Pre-mixing of raw materials, and then using a twin-screw extruder at 380 ° C for 1 hour to melt blend, extruded at 380 ° C to obtain granules. The particle size of the composite material is 5mm-10mm.

[0045] 2. Preparation of bone prosthesis

[0046] The fluoroapatite / barium titanate / polyetheretherketone composite material is injection-molded at 380°C by an injection molding machine, wherein the filling pressure is 70MPa, the filling time is 0.5 hours to 1 hour, the holding pressure is 70MPa, and the holding time is 70MPa. For 0.5 hours, that is. The mechanical properties of the bone restoration are shown in Table 1.

Embodiment 2

[0048] 1. Preparation of fluoroapatite / barium titanate / polyether ether ketone composite material

[0049] Raw materials: 3kg (30wt%) fluoroapatite powder (particle size is 20 μm), 1kg (10wt%) barium titanate powder (particle size is 20 μm) and 6kg (60wt%) polyether ether ketone powder in a high-speed mixer Pre-mixing of raw materials in a 2-screw extruder at 400°C for 2 hours, extrusion and granulation at 400°C to obtain the product. The particle size of the composite material is 5mm-10mm.

[0050] 2. Preparation of bone prosthesis

[0051] The fluorapatite / barium titanate / polyether ether ketone composite material is injection molded at 380°C by an injection molding machine, wherein the filling pressure is 70MPa, the filling time is 0.5 hours to 1 hour, the holding pressure is 70MPa, and the holding time is 70MPa. For 0.5 hours, that is. The shape of the bone prosthesis is as figure 2 Its mechanical properties are listed in Table 1. The SEM photo of the surface of the bo...

Embodiment 3

[0053] 1. Preparation of fluoroapatite / barium titanate / polyether ether ketone composite material

[0054] Raw materials: 2.5kg (25wt%) fluoroapatite powder (20μm in particle size), 2.5kg (25wt%) barium titanate powder (20μm in particle size) and 5kg (50wt%) polyether ether ketone powder at high speed The raw materials are premixed in a mixer, and then melt-blended at 400° C. for 1.5 hours with a twin-screw extruder, extruded at 400° C. to obtain granules. The particle size of the composite material is 5-10mm.

[0055] 2. Preparation of bone prosthesis

[0056] Fluorapatite / barium titanate / polyetheretherketone composite materials were injection molded at 400°C by an injection molding machine to obtain a molded body, wherein the filling pressure was 70MPa, the filling time was 0.5 hours to 1 hour, and the holding pressure was 70MPa. The pressure holding time is 0.5 hours; use a sandblasting machine to perform sandblasting treatment on the surface of the molded part through alu...

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Abstract

The invention discloses a fluorapatite / barium titanate / polyetheretherketone composite material as well as a preparation method and application of the composite material. The preparation method comprises the following step of: carrying out melt blending and extrusion granulating on fluorapatite, barium titanate and polyetheretherketone, wherein the use amount of fluorapatite is 10-30wt%, the use amount of barium titanate is 10-40wt%, and the use amount of polyetheretherketone is 50-60wt%. The invention also discloses a bone repairing body and a preparation method of the bone repairing body. The composite material has excellent biological activity and biocompatibility, and better mechanical compatibility with bone tissue, and can stimulate bone growth, accelerate bone healing and reduce the healing time of the material is implanted to the bone. The preparation method is simple and feasible in process. The bone repairing body has excellent biocompatibility, biological activity, bone mechanical compatibility and microorganism resistance, thereby shortening the bone healing time, and is high in strength, good in fatigue resistance and corrosion resistance and long in service life, thereby meeting the clinical bone repairing requirements.

Description

technical field [0001] The invention relates to the field of polyether ether ketone composite materials, in particular to a fluoroapatite / barium titanate / polyetherether ketone composite material and its preparation method and application, and in particular to a fluoroapatite / titanium composite material. A bone restoration made of barium acid / polyether ether ketone composite material and a preparation method thereof. Background technique [0002] Fluorapatite (FA) has the same crystal structure as hydroxyapatite (HA), but the lattice constant of FA is smaller than that of HA. Fluorapatite has less solubility due to its tighter structure. Preliminary biological tests have shown that FA has good biocompatibility and no toxic side effects. Many scholars are working on replacing HA with FA as a biological coating for implant materials. The plasma sprayed coating of FA is relatively stable. As a coating for metal implant materials, it has low solubility and will not decompose, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/16C08K3/32C08K3/24A61L27/46B29B9/06B29C47/92B29C45/00B29C43/00B29C48/92
CPCB29C48/04
Inventor 魏杰马健刘昌胜李享德吴钊英邓玉虎
Owner EAST CHINA UNIV OF SCI & TECH
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