摘要
通过溶液法制备羟基磷灰石粉体，研究了反应体系与分散剂、溶液浓度、反应温度、pH值和陈化时间等工艺因素对羟基磷灰石粉体粒度和形貌的影响。研究表明，高浓度（1mo/L）乙醇-水溶液条件下，也可通过控制工艺因素获得不同形态（如颗粒状、针状）的羟基磷灰石粉体。粉体煅烧可得仅含羟基磷灰石和磷酸钙的生物陶瓷粉。提高pH值、延长陈化时间可以提高煅烧产物中羟基磷灰石的含量。
Hydroxyapatite （HA） powders can be prepared by wet precipitation method. In this paper,the effect of solution concentration ,temperature ,pH value and ageing time on the granularity and morphology of HA powders is discussed. In high concentration water-alcohol solution, various morphologies（ like granule, needle）can be obtained by adjusting processing parameters. Bioceramic powders consisting of HA and Ca3 （ PO4 ） 2 can be received by calcining wet precipitated powders. Increasing pH value or prolonging ageing time can increase HA content in the resulted powder mixture.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2005年第F05期332-334,共3页
Materials Reports
基金
天津市科技发展计划项目（013111711）
关键词
羟基磷灰石
溶液法
工艺
形貌
煅烧
hydroxyapatite, wet chemical precipitation method, processing parameter, morphology, calcinate
