CN105859276B - Biocompatibility is preferably for tooth, the composite boilogical ceramic of alveolus reparation - Google Patents

Biocompatibility is preferably for tooth, the composite boilogical ceramic of alveolus reparation Download PDF

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CN105859276B
CN105859276B CN201610401417.8A CN201610401417A CN105859276B CN 105859276 B CN105859276 B CN 105859276B CN 201610401417 A CN201610401417 A CN 201610401417A CN 105859276 B CN105859276 B CN 105859276B
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hydroxyapatite
temperature
apatite powder
hydroxy apatite
zirconium oxide
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CN105859276A (en
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不公告发明人
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Shenzhen Alcadent False Tooth Co ltd
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Shenzhen Yakate Denture Co Ltd
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Abstract

The invention discloses a kind of biocompatibility preferably for tooth, the composite boilogical ceramic of alveolus reparation, preparation process：Prepare hydroxy apatite powder：Hydroxyapatite is prepared by hydro-thermal method, then drying and crushing is sieved, and the average grain diameter of hydroxy apatite powder is 10 50 μm, and the ratio between Ga and P are 1 in hydroxyapatite:1.67；Hydroxy apatite powder is put into chemical vapor deposition reaction chamber, carries out chemical vapour deposition reaction：Using zirconium chloride as raw material, control material temperature is 350 370 DEG C, is passed through hydrogen and argon gas, and 30 60r/min of the reative cell speed of rotation to the end of reaction, is cooled to room temperature taking-up；The hydroxy apatite powder for being coated with nano zircite is subjected to cold moudling；The thickness of the nano zircite clad is 100 300nm；Material after molding is subjected to high-temperature calcination；After calcining, taking-up to be cooled.

Description

Biocompatibility is preferably for tooth, the composite boilogical ceramic of alveolus reparation
Technical field
The invention belongs to biomedical materials field, more particularly to a kind of hydroxyapatite/zirconium oxide composite boilogical ceramic And the preparation method of the bioceramic.
Background technology
Biomaterial is the material for the performances such as being repaired, being substituted and being regenerated to body tissue.Due to stainless steel, there are molten Analysis, corrosion and fatigue problem, there are the problem of stability difference and low intensity for plastics.Bioceramic material obtains broad development, tool There is more wide prospect of the application.
Bioceramic material is divided into bio-inert ceramic materials and biological active ceramic material, and zirconium oxide bioceramic belongs to Bio-inert ceramic materials have excellent wear-resisting property and mechanical strength, are typically used as Dental Erosion or alternative materials；Hydroxyl Apatite bioceramic belongs to bioactive ceramics, and the structure of hydroxyapatite is similar to biological bone, therefore, the hydroxyl phosphorus of synthesis Lime stone bioceramic is commonly used for the replacement or repair materials of bone.
The mechanical strength of zirconium oxide bioceramic is good, and hardness is high, and under heavy loading, easily body is damaged；Hydroxyl Apatite bioceramic has preferable biocompatibility, and with stimulating growth performance is induced, shortcoming is that mechanical strength is poor, It is not wear-resisting, therefore, if two kinds of materials are combined together, accomplish have complementary advantages, obtained composite boilogical ceramic will be provided with compared with Good prospect of the application.
Application No. is 200510027284.4 patent document " hydroxyapatite-zirconium dioxide composite bioceramic materials And preparation method thereof " disclose a kind of hydroxyapatite/zirconium oxide composite boilogical ceramic and preparation method thereof, the technical solution with Zirconium dioxide is matrix center layer, and spreads the zirconium dioxide and hydroxyapatite mixed by different proportion separately below on it Mixing middle layer, the superficial layer of outermost layer overlay pure ha forms a kind of gradient laminated composite structure；In steel In mould, the dry pressing in the case where pressure is 10~30MPa, then the pressureless sintering under 1500~1600 DEG C of high temperature, so that it may obtain hydroxyl Apatite-zirconium dioxide composite bioceramic material.
It follows that it is by hydroxy-apatite that the technical solution, which provides hydroxyapatite/zirconium oxide composite bioceramic material, Stone and zirconium dioxide are fabricated to layer structure, and after cold moudling, prepared by high temperature sintering.The compound bio material being prepared Material, mechanical performance increase compared with hydroxylapatite biology material, but still undesirable, and the density of material is smaller, high temperature After solid phase, the contact of zirconium dioxide and hydroxyapatite is not close in the layer structure of formation, affects the toughness of material, Therefore, the performance intervention of material between the two, does not reach better promotion.
Invention content
Present invention solves the technical problem that：Against the above deficiency, the defects of overcoming the prior art, the purpose of the present invention is carry For a kind of hydroxyapatite/zirconium oxide composite boilogical ceramic and preparation method thereof.
Technical scheme of the present invention：A kind of hydroxyapatite/zirconium oxide composite boilogical ceramic, using hydroxy apatite powder as Using nano zircite as covering material, nano zircite is coated on hydroxy apatite powder surface for basis material；
Wherein, the average grain diameter of hydroxy apatite powder is 10-50 μm, and the thickness of nano zircite clad is 100- 300nm；
Wherein, hydroxy apatite powder is prepared by precipitation reaction method or hydro-thermal method.
Preferably, the ratio between Ga and P are 1 in the hydroxyapatite:1.67.
A kind of preparation method of hydroxyapatite/zirconium oxide composite boilogical ceramic, preparation process are as follows：
（1）Prepare hydroxy apatite powder：Hydroxyapatite is prepared by hydro-thermal method or precipitation reaction method, then xeraphium Broken sieving；
（2）Hydroxy apatite powder is put into chemical vapor deposition reaction chamber, carries out chemical vapour deposition reaction：With four Zirconium chloride is raw material, and control material temperature is 350-370 DEG C, is passed through hydrogen and argon gas, the gas flow of hydrogen is 400- 600ml/min, the gas flow of argon gas is 100-300ml/min, and to 820-1300 DEG C, reative cell rotates adjustment reaction chamber temperature Rate 30-60r/min, time 20-40min to the end of reaction, are cooled to room temperature taking-up；
（3）The hydroxy apatite powder for being coated with nano zircite is subjected to cold moudling；
（4）Material after molding is subjected to high-temperature calcination, temperature is 1000-1400 DEG C, 1.5-2.5GPa of pressure, the time 0.5-1h；
（5）After calcining, taking-up to be cooled is to get to blocky hydroxyapatite/zirconium oxide composite boilogical ceramic.
Preferably, step（2）In chemical vapour deposition reaction, the temperature of reative cell is 918 DEG C.
Preferably, step（2）In chemical vapour deposition reaction, the gas flow of hydrogen is 450-550ml/min.
Preferably, step（4）The temperature of high temperature calcining is 1100-1250 DEG C, pressure 1.8-2.2GPa.
Advantageous effect：Hydroxyapatite provided by the invention/zirconium oxide composite boilogical ceramic is to utilize chemical vapor deposition Method coats one layer of close column crystal form nano zircite, then the method by high temperature solid-state on hydroxy apatite powder surface, Form composite bioceramic material.
In preparation process, hydroxyapatite is prepared first with hydro-thermal method or precipitation reaction method, obtained hydroxy-apatite Stone purity is higher, and fineness is even more ideal, and then desirable chemical is vapor-deposited, in the reaction, by controlling the flow of hydrogen and anti- Answer room temperature so that uniform column crystal form is presented in the nano zircite of formation, and then high temperature and pressure Fast Sintering, obtains Composite bioceramic material.
Thus hydroxyapatite/zirconium oxide composite boilogical ceramic combines hydroxyl apatite bioceramic and zirconium oxide life The advantage of object ceramics so that composite ceramics can be used as tooth with higher mechanical strength and with preferable biocompatibility Or the repairing and filling of alveolus, the reparation of bone defect and can be used as artificial bone core treat bone tuberculosis.
Specific embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, still It should be appreciated that these descriptions are only for the feature and advantage that further illustrate the present invention rather than to the claims in the present invention Limitation.
Embodiment 1：
A kind of hydroxyapatite/zirconium oxide composite boilogical ceramic, using hydroxy apatite powder as basis material, with nano oxygen Change zirconium is covering material, and nano zircite is coated on hydroxy apatite powder surface.
Above-mentioned hydroxyapatite/zirconium oxide composite boilogical ceramic is prepared according to preparation method provided by the invention, step is such as Under：
（1）Prepare hydroxy apatite powder：By CaHPO4With CaCO3The ratio between amount by substance 6：4 carry out dispensing；Then into Row wet ball grinding, the time is for 24 hours；The good slurry of ball milling is poured into container, distilled water is added in, is stirred in 95 DEG C of constant temperature It mixes, after completion of the reaction, places precipitation and obtain the precipitation of hydroxyapatite object of white, then dried 200 mesh sieve；
（2）Hydroxy apatite powder is put into chemical vapor deposition reaction chamber, carries out chemical vapour deposition reaction：With four Zirconium chloride is raw material, and control material temperature is 355 DEG C, is passed through hydrogen and argon gas, and the gas flow of hydrogen is 450ml/min, argon The gas flow of gas is 200ml/min, and adjustment reaction chamber temperature is to 836 DEG C, reative cell speed of rotation 30r/min, the time 30min to the end of reaction, is cooled to room temperature taking-up；Wherein, the thickness of nano zircite clad is 110nm；
（3）The hydroxy apatite powder for being coated with nano zircite is subjected to cold moudling；
（4）Material after molding is subjected to high-temperature calcination, temperature is 1200 DEG C, pressure 2GPa, time 1h；
（5）After calcining, taking-up to be cooled is to get to blocky hydroxyapatite/zirconium oxide composite boilogical ceramic.
Performance detection is carried out to obtained blocky hydroxyapatite/zirconium oxide composite boilogical ceramic：Density 3.84kg/m3； Compression strength 620MPa；Bending strength 440MPa；Toughness 11MPam1/2；Elasticity modulus 72GPa.
Embodiment 2：
A kind of hydroxyapatite/zirconium oxide composite boilogical ceramic, using hydroxy apatite powder as basis material, with nano oxygen Change zirconium is covering material, and nano zircite is coated on hydroxy apatite powder surface.
Above-mentioned hydroxyapatite/zirconium oxide composite boilogical ceramic is prepared according to preparation method provided by the invention, step is such as Under：
（1）Prepare hydroxy apatite powder：By CaHPO4With CaCO3The ratio between amount by substance 6：4 carry out dispensing；Then into Row wet ball grinding, the time is for 24 hours；The good slurry of ball milling is poured into container, distilled water is added in, is stirred in 95 DEG C of constant temperature It mixes, after completion of the reaction, places precipitation and obtain the precipitation of hydroxyapatite object of white, then dried 200 mesh sieve；
（2）Hydroxy apatite powder is put into chemical vapor deposition reaction chamber, carries out chemical vapour deposition reaction：With four Zirconium chloride is raw material, and control material temperature is 355 DEG C, is passed through hydrogen and argon gas, and the gas flow of hydrogen is 600ml/min, argon The gas flow of gas is 300ml/min, and adjustment reaction chamber temperature is to 1276 DEG C, reative cell speed of rotation 60r/min, the time 30min to the end of reaction, is cooled to room temperature taking-up；Wherein, the thickness of nano zircite clad is 280nm；
（3）The hydroxy apatite powder for being coated with nano zircite is subjected to cold moudling；
（4）Material after molding is subjected to high-temperature calcination, temperature is 1250 DEG C, pressure 2GPa, time 1h；
（5）After calcining, taking-up to be cooled is to get to blocky hydroxyapatite/zirconium oxide composite boilogical ceramic.
Performance detection is carried out to obtained blocky hydroxyapatite/zirconium oxide composite boilogical ceramic：Density 4.16kg/m3； Compression strength 660MPa；Bending strength 470MPa；Toughness 12.5MPam1/2；Elasticity modulus 77GPa.
Embodiment 3：
A kind of hydroxyapatite/zirconium oxide composite boilogical ceramic, using hydroxy apatite powder as basis material, with nano oxygen Change zirconium is covering material, and nano zircite is coated on hydroxy apatite powder surface.
Above-mentioned hydroxyapatite/zirconium oxide composite boilogical ceramic is prepared according to preparation method provided by the invention, step is such as Under：
（1）Prepare hydroxy apatite powder：By CaHPO4With CaCO3The ratio between amount by substance 6：4 carry out dispensing；Then into Row wet ball grinding, the time is for 24 hours；The good slurry of ball milling is poured into container, distilled water is added in, is stirred in 95 DEG C of constant temperature It mixes, after completion of the reaction, places precipitation and obtain the precipitation of hydroxyapatite object of white, then dried 200 mesh sieve；
（2）Hydroxy apatite powder is put into chemical vapor deposition reaction chamber, carries out chemical vapour deposition reaction：With four Zirconium chloride is raw material, and control material temperature is 355 DEG C, is passed through hydrogen and argon gas, and the gas flow of hydrogen is 500ml/min, argon The gas flow of gas is 200ml/min, and adjustment reaction chamber temperature is to 918 DEG C, reative cell speed of rotation 45r/min, the time 35min to the end of reaction, is cooled to room temperature taking-up；Wherein, the thickness of nano zircite clad is 210nm；
（3）The hydroxy apatite powder for being coated with nano zircite is subjected to cold moudling；
（4）Material after molding is subjected to high-temperature calcination, temperature is 1200 DEG C, pressure 2GPa, time h；
（5）After calcining, taking-up to be cooled is to get to blocky hydroxyapatite/zirconium oxide composite boilogical ceramic.
Performance detection is carried out to obtained blocky hydroxyapatite/zirconium oxide composite boilogical ceramic：Density 4.05kg/m3； Compression strength 650MPa；Bending strength 450MPa；Toughness 11.5MPam1/2；Elasticity modulus 72GPa.
Embodiment 4：
A kind of hydroxyapatite/zirconium oxide composite boilogical ceramic, using hydroxy apatite powder as basis material, with nano oxygen Change zirconium is covering material, and nano zircite is coated on hydroxy apatite powder surface.
Above-mentioned hydroxyapatite/zirconium oxide composite boilogical ceramic is prepared according to preparation method provided by the invention, step is such as Under：
（1）Prepare hydroxy apatite powder：By this method Ca (NO3)2With (NH4)2HPO4It is reacted, obtains the hydroxyl of white Base apatite precipitates, then dried 200 mesh sieve；
（2）Hydroxy apatite powder is put into chemical vapor deposition reaction chamber, carries out chemical vapour deposition reaction：With four Zirconium chloride is raw material, and control material temperature is 360 DEG C, is passed through hydrogen and argon gas, and the gas flow of hydrogen is 500ml/min, argon The gas flow of gas is 250ml/min, and adjustment reaction chamber temperature is to 918 DEG C, reative cell speed of rotation 60r/min, the time 40min to the end of reaction, is cooled to room temperature taking-up；Wherein, the thickness of nano zircite clad is 230nm；
（3）The hydroxy apatite powder for being coated with nano zircite is subjected to cold moudling；
（4）Material after molding is subjected to high-temperature calcination, temperature is 1250 DEG C, pressure 2.5GPa, time 0.5h；
（5）After calcining, taking-up to be cooled is to get to blocky hydroxyapatite/zirconium oxide composite boilogical ceramic.
Performance detection is carried out to obtained blocky hydroxyapatite/zirconium oxide composite boilogical ceramic：Density 4.12kg/m3； Compression strength 660MPa；Bending strength 460MPa；Toughness 12MPam1/2；Elasticity modulus 74GPa.
Embodiment 5：
A kind of hydroxyapatite/zirconium oxide composite boilogical ceramic, using hydroxy apatite powder as basis material, with nano oxygen Change zirconium is covering material, and nano zircite is coated on hydroxy apatite powder surface.
Above-mentioned hydroxyapatite/zirconium oxide composite boilogical ceramic is prepared according to preparation method provided by the invention, step is such as Under：
（1）Prepare hydroxy apatite powder：By this method Ca (NO3)2With (NH4)2HPO4It is reacted, obtains the hydroxyl of white Base apatite precipitates, then dried 200 mesh sieve；
（2）Hydroxy apatite powder is put into chemical vapor deposition reaction chamber, carries out chemical vapour deposition reaction：With four Zirconium chloride is raw material, and control material temperature is 365 DEG C, is passed through hydrogen and argon gas, and the gas flow of hydrogen is 550ml/min, argon The gas flow of gas is 300ml/min, and adjustment reaction chamber temperature is to 918 DEG C, reative cell speed of rotation 60r/min, the time 30min to the end of reaction, is cooled to room temperature taking-up；
Wherein, the thickness of nano zircite clad is 200nm；
（3）The hydroxy apatite powder for being coated with nano zircite is subjected to cold moudling；
（4）Material after molding is subjected to high-temperature calcination, temperature is 1200 DEG C, pressure 2GPa, time 1h；
（5）After calcining, taking-up to be cooled is to get to blocky hydroxyapatite/zirconium oxide composite boilogical ceramic.
Performance detection is carried out to obtained blocky hydroxyapatite/zirconium oxide composite boilogical ceramic：Density 3.96kg/m3； Compression strength 630MPa；Bending strength 470MPa；Toughness 12MPam1/2；Elasticity modulus 75GPa.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention. A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one The most wide range caused.

Claims (1)

1. a kind of hydroxyapatite/zirconium oxide composite boilogical ceramic, which is characterized in that it uses following preparation process to be made：
（1）Prepare hydroxy apatite powder：Hydroxyapatite is prepared by hydro-thermal method, then drying and crushing is sieved, hydroxy-apatite The average grain diameter of mountain flour body is 10-50 μm, and the ratio between Ca and P are 1.67 in hydroxyapatite:1；
（2）Hydroxy apatite powder is put into chemical vapor deposition reaction chamber, carries out chemical vapour deposition reaction：With four chlorinations Zirconium is raw material, and control material temperature is 350-370 DEG C, is passed through hydrogen and argon gas, the gas flow of hydrogen is 400-600ml/ Min, the gas flow of argon gas are 100-300ml/min, and adjustment reaction chamber temperature is to 918 DEG C, reative cell speed of rotation 30-60r/ Min, time 20-40min to the end of reaction, are cooled to room temperature taking-up；
（3）The hydroxy apatite powder for being coated with nano zircite is subjected to cold moudling；The clad of the nano zircite Thickness be 100-300nm；
（4）Material after molding is subjected to high-temperature calcination, temperature is 1000-1400 DEG C, pressure 1.5-2.5GPa, time 0.5- 1h；
（5）After calcining, taking-up to be cooled is to get to blocky hydroxyapatite/zirconium oxide composite boilogical ceramic.
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