| 水热合成莫来石超细粉粒子稳定性的研究 |
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| 引用本文： | 薛茹君,王忠良,高华. 水热合成莫来石超细粉粒子稳定性的研究[J]. 安徽理工大学学报(自然科学版), 2006, 26(2): 58-60 |
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| 作者姓名： | 薛茹君 王忠良 高华 |
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| 作者单位： | 1. 安徽理工大学化学工程系,安徽,淮南,232001;合肥工业大学材料学院,安徽,合肥,230009
2. 安徽理工大学化学工程系,安徽,淮南,232001 |
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| 基金项目： | 安徽省教育厅自然科学基金 |
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| 摘 要： | 研究了水热合成莫来石超细粉粒子的稳定性;考察了乙醇溶剂置换、三乙醇胺改性及真空干燥方法对莫来石超细粉粒子在干燥、储存过程中的团聚的影响.得出改性剂三乙醇胺能有效地抑制莫来石超细粉粒子在干燥、储存过程中的团聚,提高粒子的稳定性.采用乙醇进行溶剂置换,也可以抑制莫来石超细粉粒子在干燥过程中的团聚,并改善其储存稳定性.真空干燥方法可以减轻莫来石超细粉粒子在干燥过程中的团聚.
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| 关 键 词： | 水热合成法 超细粉 稳定性 粒子团聚 |
| 文章编号： | 1672-1098(2006)02-0058-03 |
| 收稿时间： | 2005-06-13 |
| 修稿时间： | 2005-06-13 |
Stability of the Mullite Superfine Powders Prepared in Hydrothermal Synthesis |
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| XUE Ru-jun,WANG Zhong-liang,GAO Hua. Stability of the Mullite Superfine Powders Prepared in Hydrothermal Synthesis[J]. Journal of Anhui University of Science and Technology:Natural Science, 2006, 26(2): 58-60 |
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| Authors: | XUE Ru-jun WANG Zhong-liang GAO Hua |
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| Affiliation: | 1. Dept. of Chemical Engineering,Anhui University of Science and Technology,Huainan Anhui 232001 ,China;2. Material Department of Science and Engineering,Hefei University of Technology,Hefei Anhui 230009,China |
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| Abstract: | The stability is studied of the mullite superfine powders prepared in hydrothermal synthesis. The effects are also studied of the drying methods such as agents ethanol, triethanolamine and the vacuum permutation on the agglomeration of mullite superfine powders during drying process and preservation. The conclusion is that the agent triethanolamine is able to restrain the agglomeration of mullite superfine powders during drying process and preservation and raise the stability of the mullite superfine powders. By utilizing ethanol to displace the solvent, the agglomeration of mullite superfine powders during drying process and the stability during preservation will be improved. Vacuum drying method will lighten the agglomeration of ultrafine particles during the drving process as well. |
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| Keywords: | hydrothermal synthesis stability of superfine powders particle reunion |
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