高品质羟基磷灰石纳米粉体的制备及物理化学过程研究

无机材料学报

高品质羟基磷灰石纳米粉体的制备及物理化学过程研究

宋云京^1,2; 温树林¹; 李木森¹; 宿庆财¹; 姜庆辉¹

1. 山东大学材料科学与工程学院, 济南　250061; 2.　山东电力研究院, 济南 250002

收稿日期:2001-10-07 修回日期:2001-12-06 出版日期:2002-09-20 网络出版日期:2002-09-20

Preparation and Physicochemical Process of Nanosized Hydroxyapatite Powders with High Purity

SONG Yun-Jing^1,2; WEN Shu-Lin¹; LI Mu-Sen¹; SU Qing-Cai¹; JIANG Qing-Hui¹

1. College of Materials Science and Engineering; Shandong University; Jinan 250061; China; 2. Shandong Electricity Power Insititute; Jinan 250002; China

Received:2001-10-07 Revised:2001-12-06 Published:2002-09-20 Online:2002-09-20

摘要/Abstract

摘要： 以含结晶水的硝酸钙和五氧化二磷的醇溶液为前驱体精心控制反应过程用溶胶-凝胶法制备出高纯且粒度均匀的纳米级羟基磷灰石粉体.通过TEM,XRD,IR和TG-DTA等方法研究了不同温度下羟基磷灰石合成各阶段的相组成、相结构变化.结果表明,在200、300、400℃反应产量很低,产物主要由Ca（NO₃）₂、磷酸乙酯和非晶HA组成,随着温度的升高,HA的含量逐渐增多,Ca（NO₃）₂和磷酸乙酯含量逐渐减少.其中在300、400℃出现少量的β-Ca₂P₂O₇,和CaO.在500℃×2h处理下获得高品质的纳米级HA,与其它溶胶-凝胶法相比,本制备工艺简单,获得HA纯度高,粒度均匀,性能明显好于以前用类似方法所获得的产品,并适合大批量、纳米级HA的生产制备.

关键词: 纳米羟基磷灰石粉体, 溶胶-凝胶法, 物理化学过程

Abstract: In this paper, nano-sized hydroxyapatite powders were prepared by a sol-gel method with Ca(NO₃)₂·4H₂O and P₂O₅ ethanol solution as precursors. This process was simple without refluxing and the reactants were cheap compared
with other sol-gel methods. The morphology and the phase structure were studied by TEM, XRD, IR, and TG-DTA. The nano-sized HA powders with high quality were
prepared after the as-prepared powders were sintered at 500℃ for 2h. The results show that the mixture is composed of Ca (NO₃)₂, amorphous HA and
ester phosphate at 200, 300 and 400℃. The amount of HA increases while the amount of Ca(NO₃)₂ and ester phosphate decreases with the increase of
temperature. A small amount of β-Ca₂P₂O₇ and CaO is present at 300 and 400℃. This process is simple and appropriate to produce nano-sized HA powders in large quantities.

Key words: nano-sized hydroxyapatite powders, sol-gel method, physicochemical process

中图分类号:

TQ174

宋云京,温树林,李木森,宿庆财,姜庆辉. 高品质羟基磷灰石纳米粉体的制备及物理化学过程研究[J]. 无机材料学报.

SONG Yun-Jing,WEN Shu-Lin,LI Mu-Sen,SU Qing-Cai,JIANG Qing-Hui. Preparation and Physicochemical Process of Nanosized Hydroxyapatite Powders with High Purity[J]. Journal of Inorganic Materials.

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