| 干燥方法对化学沉淀法合成HA粉体团聚的影响 |
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| 引用本文： | 肖锋,叶建东,王秀鹏,王迎军.干燥方法对化学沉淀法合成HA粉体团聚的影响[J].硅酸盐通报,2006,25(1):3-5. |
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| 作者姓名： | 肖锋 叶建东 王秀鹏 王迎军 |
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| 作者单位： | 华南理工大学特种功能材料及其制备新技术教育部重点实验室,广州,540641;华南理工大学特种功能材料及其制备新技术教育部重点实验室,广州,540641;华南理工大学特种功能材料及其制备新技术教育部重点实验室,广州,540641;华南理工大学特种功能材料及其制备新技术教育部重点实验室,广州,540641 |
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| 基金项目： | 中国科学院资助项目
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广东省博士启动基金 |
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| 摘 要： | 化学沉淀法合成羟基磷灰石粉体工艺简单,成本低廉,但这种方法得到的羟基磷灰石粉体极易团聚,限制了羟基磷灰石的广泛使用.本文研究了在羟基磷灰石粉体的合成过程中不同干燥方法对粉体团聚的影响.结果表明:在烘箱干燥得到的粉体团聚较严重,微波干燥使粉体的团聚程度有所减轻,冷冻干燥可有效地减弱粉体的团聚,所得到的粉体比表面积较高.同时,本文还讨论了粉体在干燥过程中团聚形成的机理.
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| 关 键 词： | 羟基磷灰石 防团聚 微波干燥 冷冻干燥 化学沉淀法 |
Effect of Drying Methods on the Agglomeration of Hydroxyapatite Powder Synthesized by Chemical Precipitation Method |
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| Xiao Feng,Ye Jiandong,Wang Xiupeng,Wang Yingjun.Effect of Drying Methods on the Agglomeration of Hydroxyapatite Powder Synthesized by Chemical Precipitation Method[J].Bulletin of the Chinese Ceramic Society,2006,25(1):3-5. |
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| Authors: | Xiao Feng Ye Jiandong Wang Xiupeng Wang Yingjun |
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| Affiliation: | Key Laboratory of Specially Functional Materials and Advanced Manufacturing Technology, Ministry of Education, South China University of Technology, Guangzhou 510641 |
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| Abstract: | Chemical precipitation method is a simple technology for synthesizing hydroxyapatite (HA), but HA powder synthesized via this method is seriously agglomerated. It restricts the wide use of HA. Three kinds of drying methods were adopted in this paper to investigate their effect on the agglomeration of the HA powders. The results indicates that the oven - dried HA powder is seriously agglomerated; microwave drying and freeze - drying obviously reduces the degree of agglomeration of HA powder with an increase in the specific surface area of the powder. The mechanism of agglomeration during the drying process was also discussed. |
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| Keywords: | hydroxyapatite agglomeration resistance microwave drying freeze drying chemical precipitation method |
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