山梨醇辅助下羟基磷灰石晶须的水热制备  

Hydrothermal preparation of hydroxyapatite whiskers with sorbitol

作　　者：温喜梅[1] 郭进武[1] 张军[1] 马兰[1] 宋邦才[1] 彭伟涛[1] 

机构地区：[1]河南科技大学化工与制药学院,河南洛阳471003

出　　处：《无机盐工业》2008年第11期21-23,共3页Inorganic Chemicals Industry

基　　金：河南省科技攻关项目(0524240014);河南科技大学重大科技预研专项(2004ZD005)

摘　　要：羟基磷灰石(HA)晶须具有较低的位错密度,较高的抗拉性能,可用作生物陶瓷的增韧材料。以四水硝酸钙和磷酸氢二铵为原料,在水热条件下,通过控制反应温度及时间,制备了羟基磷灰石晶须。借助X射线衍射仪(XRD)、透射电子显微镜(TEM)及傅里叶变换红外光谱仪(FT-IR),对羟基磷灰石的晶相组成、形貌、大小及化学组成进行了表征。研究结果表明:当前驱物钙磷物质的量比为1.67时,以尿素和山梨醇为辅助试剂,在水热条件下,可制得结晶度高、形貌均一、长径比相对较大的羟基磷灰石晶须。Hydroxyapatite （HA ） whisker, with lower dislocation density and higher tensile strength, can be used as toughening material in bioceramic. HA whisker has been synthesized under hydrothermal condition by controling reaction temperature and time,using Ca （ NO3 ）2 · 4H2O and （ NH4 ）2 HPO4 as raw materials. The phases, morphology, size, and chemical composition of obtained products were characterized by X - ray diffraction （ XRD ）, transmission electron microscope （ TEM ）, and fourier transform infrared ray （ FF - IR ）, respectively. The results showed that hydroxyapatite whiskers with high degree of crystallinity, uniform morphology, and with high slenderness ratio can be successfully synthesized by hydrothermal treatment with urea and sorbitol as addition agents,when n（ Ca）/n（P） of precursors is 1.67.

关 键 词：羟基磷灰石 晶须 生物陶瓷 助剂 

分 类 号：TB321[一般工业技术—材料科学与工程]