发明名称 |
PREPARATION AND APPLICATION OF HYDROXYAPATITE WHISKER CONTAINING SILICON AND MAGNESIUM BY HYDROTHERMAL METHOD |
摘要 |
PURPOSE: A hydroxyapatite whisker£Ca10(PO4)6(OH)2| containing Si and Mg by a hydrothermal method is provided for use as reinforcing materials of biotissue and medical substances due to improved biological affinity compared with conventional hydroxyapatite whisker. CONSTITUTION: The hydroxyapatite whisker containing Si and Mg is characterized by substituting P for Si and Ca for Mg in the hydroxyapatite£Ca10(PO4)6(OH)2| crystal structure, wherein the amounts of Si and Mg are 0.1-5wt.% and 0.1-1wt.%, respectively. The preparation method of hydroxyapatite whisker comprises the steps of: preparing hydroxyapatite powder containing Si and Mg; adding organics such as citric acid, lactic acid, ethylenediamine tetraacetic acid(EDTA), etc.; hydrothermal reacting at 200deg.C for 24hrs. in a high pressure vessel; washing and drying at 100deg.C. The resultant hydroxyapatite particles have a whisker shape and an aspect ratio over 10.
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申请公布号 |
KR20030046107(A) |
申请公布日期 |
2003.06.12 |
申请号 |
KR20010076509 |
申请日期 |
2001.12.05 |
申请人 |
KOREA INSTITUTE OF CERAMIC ENGINEERING & TECHNOLOGY |
发明人 |
JUNG, SANG JIN;KIM, SU RYONG;KIM, YEONG HUI;LEE, YUN JU;RYU, DO HYEONG |
分类号 |
C01B25/32;(IPC1-7):C01B25/32 |
主分类号 |
C01B25/32 |
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