| 微乳液法制备球形氧化锆粉体及其分散特性的研究 | |
| Study on Preparation of Zirconia Spherical Powder by Nano-reactor of Microemulsion and its Dispersibility | |
| 摘要: 以水/环己烷/曲拉通-100/正己醇四元油包水微乳体系中的微乳液滴为纳米微反应器，通过微反应器中增溶的锆盐和沉淀剂发生反应，可以制备出基本无团聚、球形度较好的纳米级氧化锆粉体，粉体粒径为30～40 nm且呈单峰分布。通过分析粉体中可溶性离子的含量及其在水中的电动行为以及悬浮体的流变特性，说明粉体具有良好的分散特性。 | |
| 关键词: 微乳液 氧化锆 球形粉体 分散性 | |
| 基金项目: | |
| Abstract: The water droplets in the microemulsion system of cyclohexane / water / Triton X-100 / hexyl alcohol can be seen as the nano reactors which solubilize zirconium oxychloride and ammonia separately. The precipitation reactions will take place in the confined spaces which were determined by the droplets size. The minute original reactors help us obtain ultrafine spherical zirconia powder with uniform diameter distribution and weak aggregate. The content of soluble ions, especially high valence opposite ions in the powders is lower than that in others. On comprehensively analyzing zeta potential in the water and rheological characteristics, we can draw the conclusion that the powder has perfect dispersibility. | |
| Keywords: microemulsion zirconia spherical powder dispersibility | |
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| 马 天,杨金龙,张立明,何锦涛,黄 勇.微乳液法制备球形氧化锆粉体及其分散特性的研究[J].无机化学学报,2004,20(2):121-127. | |
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