Polyether-ether-ketone composite material containing fluorapatite and titanium dioxide and preparation method thereof

A technology of titanium dioxide and polyetheretherketone, which is used in medical science, prosthesis, etc., can solve problems such as elastic modulus mismatch, stress shielding, loosening of bone restorations, etc.

Inactive Publication Date: 2010-11-10
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] Aiming at the deficiencies and defects of the above-mentioned metal and bioceramic bone repair and replacement materials, the present invention provides a fluoroapatite and titanium dioxide reinforced polyetheretherketone composite material and its preparation method, so that the composite bone repair material has bone tissue It has good mechanical compatibility and solves a series of problems such as loosening of bone restorations and bone resorption caused by stress shielding caused by the mismatch of elastic modulus in current materials.

Method used

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  • Polyether-ether-ketone composite material containing fluorapatite and titanium dioxide and preparation method thereof
  • Polyether-ether-ketone composite material containing fluorapatite and titanium dioxide and preparation method thereof
  • Polyether-ether-ketone composite material containing fluorapatite and titanium dioxide and preparation method thereof

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Embodiment 1

[0049] The composition and weight percentage of the fluorapatite and titanium dioxide / polyetheretherketone composite material are: 20% of fluorapatite, 20% of titanium dioxide, and 60% of polyetheretherketone. Weigh 2kg of fluoroapatite, 2kg of titanium dioxide and 6kg of polyether ether ketone powder, pre-mix in a high-speed mixer, and then use a twin-screw extruder for high-temperature mixing, extrusion, and granulation. The particle composite material is injection-molded by an injection molding machine to form the required samples.

Embodiment 2

[0051] The composition and weight percentage of the fluorapatite and titanium dioxide / polyetheretherketone composite material are: 30% of fluorapatite, 10% of titanium dioxide, and 60% of polyetheretherketone. Weigh 3kg of fluoroapatite, 1kg of titanium dioxide and 6kg of polyether ether ketone powder, pre-mix in a high-speed mixer, and then use a twin-screw extruder for high-temperature mixing, extrusion, and granulation. The particle composite material is injection-molded by an injection molding machine to form the required samples.

Embodiment 3

[0053] The composition and weight percentage of the fluorapatite and titanium dioxide / polyetheretherketone composite material are: 20% of fluorapatite, 20% of titanium dioxide, and 60% of polyetheretherketone. Weigh 2kg of fluoroapatite, 2kg of titanium dioxide and 6kg of polyether ether ketone powder, pre-mix in a high-speed mixer, put the uniformly mixed powder of fluoroapatite and polyether ether ketone into the mold, and place the Put it into the press, raise the temperature from room temperature to 400°C, pressurize at 30MPa, keep the temperature and hold the pressure for 2-3 hours, and release the mold when the temperature is lowered to 100-120°C at a cooling rate of 10°C / min.

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Abstract

The invention discloses a polyether-ether-ketone composite material containing fluorapatite and titanium dioxide and a preparation method thereof, belonging to the technical field of biomedical composite materials. The composite material is a bone restoration material prepared from a polyether-ether-ketone composite material with enhanced fluorapatite and titanium dioxide and is prepared by blending fluorapatite, titanium dioxide and polyether-ether-ketone in a fusion way, wherein the fluorapatite and the titanium dioxide are respectively 10-30 percent of the total weight of the composite material, and the balance is the components of the polyether-ether-ketone. The composite material prepared from the fluorapatite, the titanium dioxide and the polyether-ether-ketone in the invention realizes good strength and toughness and consistent elastic modulus with a human bone, has bone-substitute material with bioactivity, and can overcome the defect that the traditional metal and ceramic bone-substitute material has the mechanical property which is not matched with the human bone.

Description

technical field [0001] The invention relates to a polyether ether ketone composite bone repair and replacement material made of fluoroapatite and titanium dioxide and a preparation method thereof, in particular to a polyether ether ketone composite bone repair material reinforced with fluoroapatite and titanium dioxide and a preparation method thereof . The biocomposite material is used in the field of orthopedics and oral medical surgery. Background technique [0002] Fluorapatite (FA) has the same crystal structure as hydroxyapatite (HA), except that F- replaces the OH position. Due to the change in the composition, the characteristics of the corresponding materials have also changed. Biomaterial scientists at home and abroad attach great importance to this and have carried out more in-depth research. Since F is smaller than the OH group, fluorapatite is more stable than hydroxyapatite. The crystal structure is more compact, so the corresponding lattice constant of FA is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/46
Inventor 魏世成魏杰
Owner PEKING UNIV
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