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CaO-P2O5-NaO-TiO-Zro-biological glass ceramic and its production

A bio-glass and glass-ceramic technology, applied in medical science, prosthesis, etc., can solve the problems of low toughness, limited popularization and application, and achieve the effect of high strength, high surface activity, and high bone bonding strength

Inactive Publication Date: 2007-04-04
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its low toughness limits its popularization and application

Method used

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  • CaO-P2O5-NaO-TiO-Zro-biological glass ceramic and its production
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  • CaO-P2O5-NaO-TiO-Zro-biological glass ceramic and its production

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Experimental program
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Effect test

Embodiment 1

[0030] Analytical pure CaCO 3 , Na 2 CO 3 ,TiO 2 , ZrO 2 and H 3 PO 4 (85%) was used as the raw material to prepare a glass slurry with the components described in Table 1, and the raw material was mixed evenly with an electric mixer, and then placed in a drying oven at 50° C. for 24 hours. Pound the dried raw material into powder (with a particle size of 5-10 μm) and place it in a platinum crucible at 1350°C for 0.5h, take it out immediately, pour it on a stainless steel plate, and press it quickly to obtain glass. The macroscopic morphology of the obtained glass is shown in Fig. 1 .

[0031] serial number

Embodiment 2

[0033] The punched 60CaO30P 2 o 5 4Na 2 O3TiO 2 3ZrO 2 After the glass was immersed in simulated human body fluid (Table 2) at 37°C for 4 days, a layer of dense and uniform hydroxyapatite formed on the surface. The microscopic morphology before soaking is shown in Figure 2, and the microscopic morphology after soaking is shown in Figure 3 and Figure 4.

[0034] ion

Embodiment 3

[0036] The punched 60CaO30P 2 o 5 5Na 2 O3TiO 2 2ZrO 2 After the glass was soaked in simulated human body fluid (Table 2) at 37°C for 7 days, a layer of dense and uniform hydroxyapatite was formed on the surface. The microscopic morphology after soaking is shown in Figure 5, and its X-ray diffraction pattern is shown in Figure 6.

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Abstract

A biologic glass ceramic CaO-P2O5-Na2O-TiO2-ZrO2 is proportionally prepared from CaO and P2O5 (80-90 mol%), Na2O (4-7), and TiO2 and ZrO2 (rest) through proportional mixing, drying, heating for smelting, pouring on stainless steel plate, punching to obtain glass balls, grinding, cold pressing and sintering. It can be used as the substitute of human hard tissue. Its advantages are no SiO2 and toxic elements, high bioactivity and biologic compatibility, and high strength and machinability.

Description

Technical field: [0001] The invention relates to the field of glass ceramics, in particular to CaO-P with high strength and high biological activity for clinical medicine application 2 o 5 -Na 2 O-TiO 2 -ZrO 2 Bioglass-ceramic and its preparation method. Background technique: [0002] Human hard tissue repair and reconstruction materials are the earliest and most mature field of biomedical materials. So far, materials used for hard tissue repair and replacement include metals and alloys, bioglass ceramics, polymers, composite materials, and bone derivatives of humans and animals, etc., see reference [1]: Yu Yaoting. Biomedical Materials. Tianjin : Tianjin University Press, 2000: 116. Bioactive glass ceramics are a class of biomaterials that can bond with biological soft tissue or bone tissue, and have incomparable advantages over metals, polymers, and bioinert materials. Therefore, people have produced strong interest to this kind of novel material, and developed a va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/10C03C10/02
CPCC03C10/00C03C3/21C03C4/0007
Inventor 李述军郑彩云郝玉琳杨锐郭正晓
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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