CN106495681A - A kind of bioceramic - Google Patents

A kind of bioceramic Download PDF

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CN106495681A
CN106495681A CN201610934692.6A CN201610934692A CN106495681A CN 106495681 A CN106495681 A CN 106495681A CN 201610934692 A CN201610934692 A CN 201610934692A CN 106495681 A CN106495681 A CN 106495681A
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parts
bioceramic
zirconium oxide
tricalcium phosphate
component
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不公告发明人
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    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/447—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on phosphates, e.g. hydroxyapatite
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Abstract

The invention discloses a kind of bioceramic, is related to technical field of biological material, it is prepared from by each component of following mass fraction：25 parts of 40 60 parts of tricalcium phosphate, 20 40 parts of zirconium oxide, 5 15 parts of calcium silicates, 36 parts of nano-titanium oxide, 36 parts of medical stone powder, 49 parts of potassium metaphosphate and nanometer tungsten oxide.A kind of preparation method of tricalcium phosphate/zirconium oxide bioceramic, preparation process are as follows：(1) weigh；(2) ball milling；(3) cold moudling；(4) high-temperature calcination；(5) cool down.Preferably, biological activity is higher, while with good comprcssive strength and fracture toughness, being a kind of preferable bone repair substitution material for tricalcium phosphate/zirconium oxide bioceramic biocompatibility that the present invention is provided.

Description

A kind of bioceramic
Technical field
The invention belongs to technical field of biological material, more particularly to a kind of tricalcium phosphate/zirconium oxide bioceramic and biology pottery The preparation method of porcelain.
Background technology
With the development of material science and technology, the particularity repaired to body tissue, substituted and regenerated because of which by biomaterial Can, have become one of important research direction of current biomedical sector.Biological hard tissue substitute material is to use body earliest Bone, animal bone, were developed into later using rustless steel and plastics, and as rustless steel has dissolved, corrosion and fatigue problem, plastics are deposited In stability difference and the problem of low intensity.The bottleneck of biomaterial development is thus resulted in, the appearance of bioceramic is improved existing The deficiency of substitution material, because of its many advantages, therefore, bioceramic is provided with vast potential for future development.
Calcium phosphate ceramic (CPC) is the important species in biological active ceramic material, and studying at present and applying most is Hydroxyapatite (HA) and tricalcium phosphate (TCP).Calcium phosphate ceramic contains CaO and P2O5Two kinds of compositions, are to constitute human body hard tissue Important inorganic substances, be implanted into human body after, its surface can be reached completely affine by the combination of key with tissue.
Wherein, in tricalcium phosphate (TCP), the biodegradable ceramic bata-tricalcium phosphate (abbreviation β-TCP) that is widely used at present, Category trigonal system, calcium phosphorus atoms ratio is 1.5, is a kind of high-temperature-phase of calcium phosphate.The sharpest edges of β-TCP are exactly biocompatibility Good, directly merge with bone after implanting to human body, without any local inflammatory response and whole body toxic and side effects.
Calcium-phosphorus ratio plays an important role on internal dissolubility and absorption trend is determined, so compare TCP with HA being easier to Dissolve in vivo, its dissolubility is about high than HA 10-20 times.Conventional β-TCP implant and gradually can degrade, and degradation rate can be because Its surface structure, crystallographic configurations containing porosity and are implanted into the different and different of animal, and its intensity often weakens with degraded.
With other ceramic phase ratios, β-TCP potteries are more closely similar to the property and structure of people's bone and natural teeth in vivo, hydroxyl The dissolving of base apatite is harmless, and forms new bone by calcium and phosphate anion etc. is supplemented from body fluid, can be in skeleton Joint interface produces the reactions such as decomposition, absorption and precipitation, realizes strong bonded.
The shortcoming of β-TCP potteries is that mechanical strength is low, is unable to undergo the impact of power.β-TCP are mixed with other materials, is made Into two-phase or multiphase ceramic, it is to improve one of method of its mechanical strength.
Content of the invention
Present invention solves the technical problem that：For above-mentioned deficiency, the defect of prior art is overcome, the purpose of the present invention is to carry For a kind of tricalcium phosphate/zirconium oxide bioceramic and preparation method thereof.
Technical scheme：A kind of tricalcium phosphate/zirconium oxide bioceramic, by each component of following mass fraction It is prepared from：
Tricalcium phosphate 40-60 parts, zirconium oxide 20-40 parts, calcium silicates 5-15 parts, nano-titanium oxide 3-6 parts, medical stone powder 3-6 parts, Potassium metaphosphate 4-9 parts and nanometer tungsten oxide 2-5 parts.
Preferably, the mass fraction of each component is：Tricalcium phosphate 45-58 parts, zirconium oxide 25-36 parts, calcium silicates 9- 12 parts, nano-titanium oxide 4-5 parts, medical stone powder 4-5 parts, potassium metaphosphate 6-8 parts and nanometer tungsten oxide 3-4 parts.
Preferably, the mass fraction of each component is：52 parts of tricalcium phosphate, 32 parts of zirconium oxide, calcium silicates 10 part, nanometer 3 parts of 4 parts of titanium oxide, 5 parts of medical stone powder, 7 parts of potassium metaphosphate and nanometer tungsten oxide.
A kind of preparation method of tricalcium phosphate/zirconium oxide bioceramic, preparation process are as follows：
（1）Weigh：Each component is accurately weighed；
（2）Ball milling：Each component is mixed, ball mill is put into and is ground mixing；
（3）Cold moudling：Mixed powder is carried out cold moudling；
（4）It is put into after powder body molding in mould, carries out high-temperature calcination, temperature is 1100 DEG C -1350 DEG C, pressure 300-700MPa, Time 2-8h；
（5）After calcining, taking-up to be cooled obtains pain phosphorus acid DFP/zirconium oxide bioceramic.
Preferably, step（4）The temperature of middle calcining is 1200 DEG C.
Preferably, step（4）The pressure of middle calcining is 580MPa.
Beneficial effect：Tricalcium phosphate/zirconium oxide bioceramic that the present invention is provided, is a kind of composite bio-active pottery, Tricalcium phosphate bioactive ceramicses have very good biocompatibility, and can slowly discharge calcium and phosphorus ionses, but its mechanics Performance is less desirable；Zirconium oxide bioceramic is bio-inert ceramic, and preferably, mechanical property is preferable for biocompatibility, but simultaneously Do not possess biological activity, therefore, two-by-two plant bioceramic material be combined together, prepare two-phase composite boilogical ceramic, not only after The excellent biological activity of tricalcium phosphate is held, and has improve the mechanical property of bioceramic.
Therefore, preferably, biological activity is higher for tricalcium phosphate/zirconium oxide bioceramic biocompatibility that the present invention is provided, There is good comprcssive strength and fracture toughness simultaneously, be a kind of preferable bone repair substitution material.
Specific embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, but It should be appreciated that these descriptions are simply for further illustrating the features and advantages of the present invention, rather than to the claims in the present invention Limit.
Embodiment 1：
A kind of tricalcium phosphate/zirconium oxide bioceramic, including each component of following mass fraction：
40 parts of tricalcium phosphate, 20 parts of zirconium oxide, 5 parts of calcium silicates, 3 parts of nano-titanium oxide, 3 parts of medical stone powder, 4 parts of potassium metaphosphate and 2 parts of nanometer tungsten oxide.
Tricalcium phosphate/zirconium oxide bioceramic is prepared according to the preparation method that the present invention is provided, step is as follows：
（1）Weigh：Each component is accurately weighed；
（2）Ball milling：Each component is mixed, ball mill is put into and is ground mixing；
（3）Cold moudling：Mixed powder is suppressed using 60T press；
（4）It is put into after powder body molding in mould, carries out high-temperature calcination, temperature is 1300 DEG C, pressure 400MPa, time 4h；
（5）After calcining, taking-up to be cooled obtains pain phosphorus acid DFP/zirconium oxide bioceramic.
Block tricalcium phosphate/zirconium oxide the bioceramic for obtaining is detected, the performance of bioceramic is detected：Hardness 1020HV；Compressive strength 1790MPa；Bending strength 780MPa；Toughness 16MPa m1/2.
Embodiment 2：
A kind of tricalcium phosphate/zirconium oxide bioceramic, including each component of following mass fraction：
60 parts of tricalcium phosphate, 40 parts of zirconium oxide, 15 parts of calcium silicates, 6 parts of nano-titanium oxide, 6 parts of medical stone powder, 9 parts of potassium metaphosphate With 5 parts of nanometer tungsten oxide.
Tricalcium phosphate/zirconium oxide bioceramic is prepared according to the preparation method that the present invention is provided, step is as follows：
（1）Weigh：Each component is accurately weighed；
（2）Ball milling：Each component is mixed, ball mill is put into and is ground mixing；
（3）Cold moudling：Mixed powder is suppressed using 60T press；
（4）It is put into after powder body molding in mould, carries out high-temperature calcination, temperature is 1300 DEG C, pressure 400MPa, time 7h；
（5）After calcining, taking-up to be cooled obtains pain phosphorus acid DFP/zirconium oxide bioceramic.
Block tricalcium phosphate/zirconium oxide the bioceramic for obtaining is detected, the performance of bioceramic is detected：Hardness 1050HV；Compressive strength 1820MPa；Bending strength 830MPa；Toughness 18MPa m1/2.
Embodiment 3：
A kind of tricalcium phosphate/zirconium oxide bioceramic, including each component of following mass fraction：
Tricresyl phosphate Ca45 part, 25 parts of zirconium oxide, 9 parts of calcium silicates, 4 parts of nano-titanium oxide, 4 parts of medical stone powder, 6 parts of potassium metaphosphate and 3 parts of nanometer tungsten oxide.
Tricalcium phosphate/zirconium oxide bioceramic is prepared according to the preparation method that the present invention is provided, step is as follows：
（1）Weigh：Each component is accurately weighed；
（2）Ball milling：Each component is mixed, ball mill is put into and is ground mixing；
（3）Cold moudling：Mixed powder is suppressed using 60T press；
（4）It is put into after powder body molding in mould, carries out high-temperature calcination, temperature is 1200 DEG C, pressure 580MPa, time 6h；
（5）After calcining, taking-up to be cooled obtains pain phosphorus acid DFP/zirconium oxide bioceramic.
Block tricalcium phosphate/zirconium oxide the bioceramic for obtaining is detected, the performance of bioceramic is detected：Hardness 1030HV；Compressive strength 1810MPa；Bending strength 790MPa；Toughness 16MPa m1/2.
Embodiment 4：
A kind of tricalcium phosphate/zirconium oxide bioceramic, including each component of following mass fraction：
58 parts of tricalcium phosphate, 36 parts of zirconium oxide, 12 parts of calcium silicates, 5 parts of nano-titanium oxide, 5 parts of medical stone powder, 8 parts of potassium metaphosphate With 4 parts of nanometer tungsten oxide.
Tricalcium phosphate/zirconium oxide bioceramic is prepared according to the preparation method that the present invention is provided, step is as follows：
（1）Weigh：Each component is accurately weighed；
（2）Ball milling：Each component is mixed, ball mill is put into and is ground mixing；
（3）Cold moudling：Mixed powder is suppressed using 60T press；
（4）It is put into after powder body molding in mould, carries out high-temperature calcination, temperature is 1200 DEG C, pressure 580MPa, time 6h；
（5）After calcining, taking-up to be cooled obtains pain phosphorus acid DFP/zirconium oxide bioceramic.
Block tricalcium phosphate/zirconium oxide the bioceramic for obtaining is detected, the performance of bioceramic is detected：Hardness 1040HV；Compressive strength 1810MPa；Bending strength 800MPa；Toughness 17MPa m1/2.
Embodiment 5：
A kind of tricalcium phosphate/zirconium oxide bioceramic, including each component of following mass fraction：
52 parts of tricalcium phosphate, 32 parts of zirconium oxide, 10 parts of calcium silicates, 4 parts of nano-titanium oxide, 5 parts of medical stone powder, 7 parts of potassium metaphosphate With 3 parts of nanometer tungsten oxide.
Tricalcium phosphate/zirconium oxide bioceramic is prepared according to the preparation method that the present invention is provided, step is as follows：
（1）Weigh：Each component is accurately weighed；
（2）Ball milling：Each component is mixed, ball mill is put into and is ground mixing；
（3）Cold moudling：Mixed powder is suppressed using 60T press；
（4）It is put into after powder body molding in mould, carries out high-temperature calcination, temperature is 1200 DEG C, pressure 580MPa, time 5h；
（5）After calcining, taking-up to be cooled obtains pain phosphorus acid DFP/zirconium oxide bioceramic.
Block tricalcium phosphate/zirconium oxide the bioceramic for obtaining is detected, the performance of bioceramic is detected：Hardness 1040HV；Compressive strength 1820MPa；Bending strength 800MPa；Toughness 17MPa m1/2.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention. Multiple modifications of these embodiments will be apparent for those skilled in the art, as defined herein General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one The most wide scope for causing.

Claims (1)

1. a kind of tricalcium phosphate/zirconium oxide bioceramic, it is characterised in that prepared by each component of following mass fraction and Into：
58 parts of tricalcium phosphate, 36 parts of zirconium oxide, 12 parts of calcium silicates, 5 parts of nano-titanium oxide, 5 parts of medical stone powder, 8 parts of potassium metaphosphate With 4 parts of nanometer tungsten oxide；
The preparation method of described tricalcium phosphate/zirconium oxide bioceramic, preparation process are as follows：
（1）Weigh：Each component is accurately weighed；
（2）Ball milling：Each component is mixed, ball mill is put into and is ground mixing；
（3）Cold moudling：Mixed powder is carried out cold moudling；
（4）It is put into after powder body molding in mould, carries out high-temperature calcination, temperature is 1200 DEG C, pressure 580MPa, time 6h；
（5）After calcining, taking-up to be cooled obtains pain phosphorus acid DFP/zirconium oxide bioceramic.
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