A kind of preparation method of titanium-niobium-zirconium-based hydroxyapatite biocomposite material

A titanium-niobium-zirconium-based hydroxyapatite and composite material technology, applied in medical science, prostheses, etc., can solve the problems of low compressive strength, easy peeling off of the coating, long-term biological stability, poor elastic modulus, etc., and achieve extreme Effects of high density, short sintering time, and low elastic modulus
CN104857566BActive Publication Date: 2017-09-26KUNMING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
KUNMING UNIV OF SCI & TECH
Publication Date
2017-09-26

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Abstract

The invention discloses a method for preparing a titanium-niobium-zirconium-based hydroxyapatite biocomposite material, which belongs to the field of biomaterial preparation. The composite material prepared by the invention adopts the titanium-niobium-zirconium alloy as a matrix, and the hydroxyapatite is bioceramics; the mass of the hydroxyapatite is 10-25% of that of the titanium alloy. Its preparation process is as follows: put hydroxyapatite and titanium alloy powder into a ball mill jar, seal it with alcohol and evacuate to 20-30Pa, and dry it in a vacuum drying oven after ball milling for 6-8 hours; put the dried powder into Graphite molds are formed by cold pressing, and finally spark plasma sintering is used. During the sintering process, the sintering temperature is controlled at 1100°C~1200°C, and the temperature is first heated to 1000°C at a heating rate of 100°C / min, and then heated to 25~50°C / min. The sintering temperature is kept warm, the holding time is 6-10min, and the pressure is 50-60MPa; the biocomposite material prepared by the present invention has an elastic modulus of 25.4-45GPa, and has both excellent mechanical properties and biocompatibility; the method of the present invention is simple in process , Low preparation cost.
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Description

technical field

[0001] The invention relates to a method for preparing a titanium-niobium-zirconium-based hydroxyapatite biocomposite material, in particular to a method for preparing a titanium alloy-based hydroxyapatite biocomposite material by using spark plasma sintering technology, which belongs to the technical field of biomedical material preparation . Background technique

[0002] Titanium niobium zirconium biomedical titanium alloys such as Ti-34Nb-6Zr, Ti-30Nb-5Zr-5Ta, Ti-29Nb-4.6Zr-13Ta, etc. have low elastic modulus, high specific strength, good wear resistance and corrosion resistance and biological Compatibility and other advantages, it is one of the most promising new materials for human body replacement and repair. However, biomedical titanium alloy is an inert material with no biological activity on the surface and lack of active repair function. After implanted in the human body, the surface of the titanium alloy and the body tissue are simply interlocked ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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