Preparation of hydroxyapatite nanopowders by using microchannel-reaction and hydrothermal crystallization method

YANG Qing; WANG Jiexin; GUO Fen; SHAO Lei; CHEN Jianfeng

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Preparation of hydroxyapatite nanopowders by using microchannel-reaction and hydrothermal crystallization method

更新时间：2025-12-10

- Preparation of hydroxyapatite nanopowders by using microchannel-reaction and hydrothermal crystallization method
- CIESC Journal Issue 1, Pages: 235-242(2010)
- 作者机构：
  
  1. 北京化工大学纳米材料先进制备技术与应用科学教育部重点实验室
  2. 北京化工大学教育部超重力工程研究中心
- 作者简介：
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- DOI：
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- Online First：05 January 2010，
  
  Published：05 January 2010
- 稿件说明：
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YANG Qing, WANG Jiexin, GUO Fen, et al. Preparation of hydroxyapatite nanopowders by using microchannel-reaction and hydrothermal crystallization method[J]. CIESC Journal, 2010, (1): 235-242.
DOI：

YANG Qing, WANG Jiexin, GUO Fen, et al. Preparation of hydroxyapatite nanopowders by using microchannel-reaction and hydrothermal crystallization method[J]. CIESC Journal, 2010, (1): 235-242. DOI：

摘要

采用微通道反应与水热晶化相结合的工艺路线，制备 HAP纳米粉体。结果表明，增大反应物流量比或减小微通道高度会导致HAP粉体的颗粒粒径变小，增加水热温度或时间会提高HAP的结晶性和热稳定性，反应物流量比和水热温度是影响HAP纳米粉体制备的主要因素。当反应物流量比为5∶1，微通道高度为250 μm，220℃下水热4 h时，实验可以制得平均粒径约为80 nm、粒度分布均匀、结晶度高的短棒状HAP纳米粉体。

Abstract

Hydroxyapatite (HAP) nanopowders were prepared by the combination of chemical reaction in a tube-in-tube microchannel reactor and hydrothermal crystallization process.The influences of reactant flow rate ratio，microchannel height，hydrothermal temperature and time on the preparation of HAP nanopowders were systematically investigated.The results showed that increasing reactant flow rate ratio or decreasing microchannel height led to the decrease of the particle size of HAP nanopowders.The crystallinity and thermal stability of HAP were enhanced with the increase of hydrothermal temperature and time.The reactant flow rate ratio and hydrothermal temperature were the main factors that influenced the preparation of HAP nanopowders.The uniform，well-crystallized and rod-like HAP nanopowders with a mean particle size of about 80 nm could be prepared under the experimental conditions of reactant flow rate ratio of 5∶1，microchannel height of 250 μm，hydrothermal temperature and time of 220℃ and 4 h，respectively.

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