Method for preparing transparent calcium phosphate bioceramics by normal-pressure sintering under atmosphere protection

A technology of transparent calcium phosphate and bioceramics, applied in the field of biomedical materials, can solve the problems of increasing production costs, large equipment investment, and high production costs, and achieve the effects of mass production, small equipment investment, and short production cycles.
CN110818403AActive Publication Date: 2020-02-21SUZHOU DINGAN ELECTRONICS TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUZHOU DINGAN ELECTRONICS TECH
Publication Date
2020-02-21

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Abstract

The invention provides a method for preparing transparent calcium phosphate bioceramics by normal-pressure sintering under atmosphere protection, and belongs to the technical field of biomedical materials. According to the method, high-purity nano hydroxyapatite (HA) and / or high-purity nano beta-tricalcium phosphate (beta-TCP) powder are taken as raw materials, no sintering auxiliary agent is added, steam is adopted for protection, and the transparent calcium phosphate biological ceramic with light transmittance of 50-95% can be obtained by multi-step normal pressure sintering under a condition of atmospheric pressure. The phase composition of the transparent calcium phosphate bioceramic is an HA single phase, a beta-TCP single phase or a HA / beta-TCP two-phase mixture. The method has simple process, small equipment investment and short production period, and can meet requirements of batch production. The obtained transparent calcium phosphate bioceramic has the advantages that relativedensity is more than 99.5%, crystal grains are uniform and fine, no impurity phase exists, and mechanical strength is high. The transparent calcium phosphate bioceramic can be used as a good matrix material for observing interaction among cells, tissues and calcium phosphate bioceramic, and can also be used in repair fields of tooth roots, dental pulp, artificial eyes and the like.
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Description

technical field

[0001] The invention relates to the technical field of biomedical materials, in particular to a method for preparing transparent calcium phosphate bioceramics by sintering under atmospheric protection and normal pressure. Background technique

[0002] Hydroxyapatite (HA), β-tricalcium phosphate (β-TCP) and hydroxyapatite / β-tricalcium phosphate biphase composite ceramics (Biphase Calcium Phosphate, BCP for short) have excellent biocompatibility and can be It conducts bone cell regeneration quickly, and can directly bond with bone without passing through an intermediate medium. As a good biological hard tissue filling, repairing and replacing material, it has been widely used in clinical practice.

[0003] When calcium phosphate bioceramics with certain light transmission properties are used as cell culture substrates, the biological properties such as cell growth, proliferation and differentiation can be directly observed in real time by using a transmission o...

Claims

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