| 用溶胶-凝胶法制备纳米粉体时聚集现象的探讨 |
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| 引用本文： | 张喜梅,李琳,郭祀远,陈玲. 用溶胶-凝胶法制备纳米粉体时聚集现象的探讨[J]. 化学工业与工程, 2000, 17(3): 155-159 |
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| 作者姓名： | 张喜梅 李琳 郭祀远 陈玲 |
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| 作者单位： | 华南理工大学轻化工研究所!广东广州510640,华南理工大学轻化工研究所!广东广州510640,华南理工大学轻化工研究所!广东广州510640,华南理工大学轻化工研究所!广东广州510640 |
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| 摘 要： | 当利用溶胶 -凝胶法制备纳米粉体材料时 ,最关键的问题是防止聚集体的生成。本文分析了该制备过程中聚集体的形成原因 ,对几种常用的防止团聚体生成的方法进行了讨论 ,认为利用超声波空化作用是防止聚集现象的新措施。
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| 关 键 词： | 溶胶-凝胶法 纳米粉体 超声波 |
| 修稿时间： | 1999-04-13 |
The Conglomeration of Particles in Nanometer Powders Prepared by Sol-gel Method |
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| ZHANG Xi-mei,LI Lin,GUO Si-yuan,CHEN Ling. The Conglomeration of Particles in Nanometer Powders Prepared by Sol-gel Method[J]. Chemical Industry and Engineering, 2000, 17(3): 155-159 |
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| Authors: | ZHANG Xi-mei LI Lin GUO Si-yuan CHEN Ling |
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| Affiliation: | (Light Ind. & Chem. Eng. Res. Inst., South China Univ. of Tech., Guangdong Guangzhou 510640,China |
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| Abstract: | Preventing agglomeration ofparticles is the most important problem in the preparation of the nanometer powders bymeans of sol-gel method. The causes of agglomeration for particles were analyzed,andseveral methods for preparation of free-agglomeration nanometer powders were disscused inthis paper. Ultrasonic technique was newly proposed to be applied in the sol-gel processto avoid the formation of agglomeration. |
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| Keywords: | sol gel method nanometer powders ultrasonic agglomeration |
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