纳米羟基磷灰石的溶胶-凝胶制备及其特性研究  

Study on Preparation and Characterization of Nanosized Hydroxyapatite Synthesized by Sol-Gel Method

作　　者：朱晓丽[1] 王迎军[2] 叶建东[2] 

机构地区：[1]广州赛宝认证中心服务有限公司,广州510610 [2]华南理工大学材料学院,广州510641

出　　处：《硅酸盐通报》2003年第2期77-80,共4页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金 ( 5 9932 0 5 0 ;5 9872 0 10 );广东省自然科学基金 ( 980 5 5 1)资助

摘　　要：采用溶胶 凝胶法制备羟基磷灰石的前体物———无定形磷酸钙 (ACP) ,并进行晶化处理得到纳米羟基磷灰石 (HAP)。在Ca/P =1 .67的条件下 ,Ca(OEt) 2 和H3PO4 在乙醇溶液中发生反应 ,合成ACP凝胶体。采用化学滴定法、透射电镜 (TEM) ,X射线衍射法 (XRD) ,BET ,傅立叶红外吸收光谱分析法(FTIR)对晶化处理前后的ACP粉料进行的性能测试表明 :溶胶 凝胶法制备的HAP粉料具有粒度小、晶化处理活性高。The hydroxyapatite precursor-amorphous calcium phosphate(ACP)was prepared by sol-gel method and heat-treated to transform to nanosized HAP in this study.ACP gel with Ca/P ratio of 1.67 is synthesized from Ca(OEt) 2 and H 3PO 4 in ethanol.Based on chemical titration,TEM,XRD,BET,FTIR analysis for the ACP powders before and after calcining,it showed that the sol-gel synthesized HAP powder was characterized by nanosized crystals,high crystallization activity,phase purity and crystallinity.

关 键 词：纳米羟基磷灰石 溶胶-凝胶法 制备 特性 研究 无定形磷酸钙 生物活性陶瓷 

分 类 号：TQ174.75[化学工程—陶瓷工业]