| 超细粉体在液相中分散稳定性的研究 |
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| 引用本文： | 汪瑾,许煜汾.超细粉体在液相中分散稳定性的研究[J].合肥工业大学学报(自然科学版),2002,25(1):123-126. |
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| 作者姓名： | 汪瑾 许煜汾 |
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| 作者单位： | 1. 安徽大学化学化工学院,安徽,合肥,230039
2. 合肥工业大学化学工程学院,安徽,合肥,230009 |
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| 摘 要： | 文章以纳米 Zr O2 的水悬浮液为例 ,通过粒度分布测量法和上层清液的光透过法等方法 ,研究水溶液中 Zr O2 粉体的表面特性、聚电解质分散剂的结构与数量以及悬浮液的离子浓度等对悬浮液稳定性的影响 ,提出了改善纳米 Zr O2 在水溶液中分散稳定性的几点措施。研究结果表明 ,分散剂的用量及 p H值是控制粉体悬浮液分散性和稳定性的主要参数 ,研究结果较满意。
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| 关 键 词： | 纳米ZrO2 表面化学 聚电解质 分散剂 |
| 文章编号： | 1003-5060(2002)01-0123-04 |
| 修稿时间： | 2001年8月13日 |
On the dispersion and stability of ultrafine powders in liquid |
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| WANG Jin ,XU Yu fen.On the dispersion and stability of ultrafine powders in liquid[J].Journal of Hefei University of Technology(Natural Science),2002,25(1):123-126. |
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| Authors: | WANG Jin XU Yu fen |
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| Institution: | WANG Jin 1,XU Yu fen 2 |
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| Abstract: | The Nano ZrO 2 aqueous suspension was prepared,and it was studied by means of Zeta potential measurement,sedimentation experiment,light transmission ratio index method and particle size analysis. The surface properties of nano ZrO 2 were described.The influence of structures and contents of dispersants was studied.The ionic thickness of the suspensions was also discussed.A few measures were provided in this paper to improve the dispersion and stability of the nano ZrO 2 aqueous suspension. The experimental results showed that the suspension stability was strongly influenced by the contents of dispersants and the pH value. |
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| Keywords: | nano ZrO 2 surface chemistry polyelectrolytes dispersant |
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