【摘要】 本文以四水硝酸钙和磷酸氢二铵为原料,通过化学沉淀法合成了纳米羟基磷灰石(HA)粉,并引入聚乙烯醇(PVA)做HA的有机改性剂,制备了有机改性的羟基磷灰石纳米粉。用X射线衍射(XRD)、红外光谱(FTIR)和透射电镜(TEM)对HA粉体进行了分析表征。结果表明,引入聚乙烯醇做有机添加剂后,羟基磷灰石粉在700℃煅烧后的粒度在80nm左右。更多还原

【Abstract】 This paper reports the preparation of the hydroxyapatite powder by using wet-chemical method and Ca(NO3)24H2O and(NH4)2HPO4 as raw materials.The polyvinyl alcohol is incorporated in process of HA as organic modifier.The characterization methods such as X-ray diffraction(XRD),Fourier transform infrared spectrograph(FTIR) and transmission electron microscopy(TEM) were used for the determination of the HA particle properties.The results showed that the hydroxyapatite was modified by using polyvinyl alcohol.when it was calcined at 700℃,the size of powder was approximately 80 nm.更多还原