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요약정보
牡蛎壳为原料制备医用CaCO3/HA复合生物材料 / Preparing Biomedical CaCO3/HA Composite with Oyster Shell
Resource Type
Academic Journal
Authors
刘子阳
;
耿振
;
李朝阳
;
LIU Ziyang
;
GENG Zhen
;
LI Zhaoyang
Source
无机材料学报 / Journal of Inorganic Materials
. 35(5):601-607
Subject
牡蛎壳
羟基磷灰石
碳酸钙
降解性能
骨科
Language
Chinese
ISSN
1000-324X
Online Access
Scopus
Web of Science
JCR 저널정보
Find it @ DONGA
초록
以牡蛎壳为原材料,通过水热法制备了碳酸钙(CaCO3)/羟基磷灰石(HA)复合材料,拟达到降低HA生产成本并改善其降解性能的目的.通过物相分析和SEM、TEM观察发现制得的CaCO3/HA复合材料呈现片层状,其微观形貌呈现纳米颗粒状.实验通过控制钙、磷元素的投料比例制备了HA含量为20%、40%、60%的三种CaCO3/HA复合材料(20%HA、40%HA、60%HA),通过ICP测试计算得出HA的实际含量为17.52%、34.30%、43.24%.随着HA含量的增加,CaCO3/HA复合材料的比表面积和热稳定性显著提升.体外降解实验结果表明,三种不同HA含量的复合材料在PBS模拟体液中14 d的降解率分别为15.2%,12.0%和10.8%,降解率随HA比例的增高而降低.这些结果表明:水热法合成CaCO3/HA复合材料可通过钙、磷元素的投料比例来调控HA的转化率,进而调控CaCO3/HA复合材料的降解速率,实现其在骨科领域的潜在应用.
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