| 超临界流体干燥法制备医用纳米羟基磷灰石 |
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| 引用本文： | 李青,王瑞,黎敏霞,李伟.超临界流体干燥法制备医用纳米羟基磷灰石[J].河南师范大学学报(自然科学版),2005,33(1):142-144. |
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| 作者姓名： | 李青 王瑞 黎敏霞 李伟 |
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| 作者单位： | 北京服装学院,材料工程学院,北京,100029;新乡医学院,河南,新乡,453000;北华大学,基础部,长春,132001;河南师范大学,化学与环境科学学院,河南,新乡,453007 |
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| 摘 要： | 应用超临界流体干燥法制备医用纳米羟基磷灰石.以 Ca(NO3)2·4H2O和(NH4)2HPO4 为原料,采用超临界流体干燥法(SCFD)制备了纳米羟基磷灰石,并用 XRD,TEM,FTIR等手段进行了表征.超临界干燥法制备的羟基磷灰石具有结晶性好、分散性好、尺寸分布均匀,呈针状结晶,长度为 100~200 nm,宽度 10~15 nm.用溶胶凝胶结合超临界流体干燥法可以制备出颗粒大小均匀、分散性好的纳米羟基磷灰石.
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| 关 键 词： | 纳米粉体 羟基磷灰石晶体 超临界流体干燥 |
| 文章编号： | 1000-2367(2005)01-0142-03 |
| 修稿时间： | 2004年7月6日 |
Preparation of Medical Nano-hydroxylapatite Powder by Supercritical Fluid Dry Method |
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| LI Qing,WANG Rui,LI Min-xia,LI Wei.Preparation of Medical Nano-hydroxylapatite Powder by Supercritical Fluid Dry Method[J].Journal of Henan Normal University(Natural Science),2005,33(1):142-144. |
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| Authors: | LI Qing WANG Rui LI Min-xia LI Wei |
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| Institution: | LI Qing~1,WANG Rui~2,LI Min-xia~3,LI Wei~4 |
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| Abstract: | To study medical nano-hydroxylapatite powder preparations,Nano-hydroxylapatite powder were prepared by Sol-Gel and supercritical fluid dry method(SCFD) with Ca(NO_3)·4H_2O and (NH_4)_2HPO_4 as the starting materials.The powder were characterized by the means of XRD,TEM and IR.The results indicated that powder by SCFD had the advantages of narrow distribution and good dispersivity.The particle size of hydroxyapatite crystals was small size (length: 100~200 nm, width: 10~15 nm).Nano-hydroxyapatite powder with uniform particle size can be preparated by Sol-Gel and SCFD. |
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| Keywords: | nanometer powder hydroxyapatite supercritical fluid dry |
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