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超声波合成技术在纳米羟基磷灰石制备中的应用
引用本文:任春洁,;刘冬梅,;曲立杰,;覃荣明.超声波合成技术在纳米羟基磷灰石制备中的应用[J].佳木斯工学院学报,2009(3):402-404.
作者姓名:任春洁  ;刘冬梅  ;曲立杰  ;覃荣明
作者单位:[1]内蒙古森工集团兴安石油有限公司,内蒙古牙克石022150; [2]佳木斯大学省生物材料重点实验室,黑龙江佳木斯154007; [3]内蒙古大兴安岭林业设计院,内蒙古牙克石022150
基金项目:黑龙江省自然科学基金项目资助(E2007-27).
摘    要:采用超声波合成技术,以硝酸钙和磷酸氢二铵为原料,在恒温、常压下,通过控制合成过程中的超声时间、超声功率,成功合成了粒子尺寸为20nm×50nm、粒度分布窄、分散性好的针状晶体纳米羟基磷灰石.利用扫描电镜(SEM)和X衍射(XRO)来表征粒子的表面形貌和相组成,透射电镜来表征粒子尺寸.讨论了不同合成条件对纳米羟基磷灰石晶体的形态、尺寸及其分散性的影响.结果表明,最佳超声功率为80W、超声时间为1.5h合成出的纳米羟基磷灰石粉末的分散性最好.

关 键 词:纳米羟基磷灰石  超声波合成  针状晶  分散性

Synthesis of Hydroxyapatite Nanoparticles in Ultrasonic Precipitation
Affiliation:REN Chun - jie, UU Dong - mei, QU Li - jie, TAN Rong - ming (1 .Xing- an Petroleum Ltd. Group Inner Mongolia, Yakeshi 022150, China; Provincial Key Laboratory of Biomaterials, Jiansusi University, Jiamusl 154007, China; 3.Daxinganling Forestry Deign College Inmer Mongolia, Yakeshi 022150, China)
Abstract:Nanocrystalline hydroxyapatite (HAp) was prepared by a synthetical method with the aid of ultrasonic mixing using Ca(NO3 )2 and NH4H2PO4 as raw material. The crystallization and morphology of the prepared nanoparticles were characterized by X - ray diffraction (XRD) and scanning electron microscopy (SEM). The size of the na- nohydroxyapatite was measured by TEM. The influence of the ultrasonic power and time on the HAp formation rate was also investigated. The results indicate that the best power and time combination is 80W and 1.5h respectively.
Keywords:nanocrystaUine hydroxyapatite  ultrasonic mixing  needle- like crysta  decentralization
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