| 纳米二氧化钛水性分散体性能研究 |
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| 引用本文： | 宋影伟,刘福春,韩恩厚.纳米二氧化钛水性分散体性能研究[J].功能材料,2006,37(3):459-461. |
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| 作者姓名： | 宋影伟 刘福春 韩恩厚 |
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| 作者单位： | 中国科学院金属研究所,材料环境腐蚀试验研究中心,辽宁,沈阳,110016 |
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| 基金项目： | 教育部科学技术研究项目 |
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| 摘 要： | 通过特殊工艺方法制备出了分散性好,粘度低,贮存稳定的纳米二氧化钛水性浓缩浆.透射电镜(TEM)观察到浓缩浆中纳米二氧化钛基本上是以单个粒子形式存在.XRD结果表明了浓缩浆中的二氧化钛仍然保持原来的晶型,没有引入其它杂质.红外图谱证明了分散剂在纳米二氧化钛表面形成了牢固的化学吸附,以此产生电斥力和空间位阻效应,使纳米二氧化钛在分散体系中处于稳定的悬浮状态.
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| 关 键 词： | 纳米二氧化钛 分散性 稳定性 粘度 |
| 文章编号： | 1001-9731(2006)03-0459-03 |
| 收稿时间： | 2005-07-14 |
| 修稿时间： | 2005-08-29 |
Study on the properties of nano-TiO2 slurry with dispersion |
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| SONG Ying-wei,LIU Fu-chun,HAN En-hou.Study on the properties of nano-TiO2 slurry with dispersion[J].Journal of Functional Materials,2006,37(3):459-461. |
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| Authors: | SONG Ying-wei LIU Fu-chun HAN En-hou |
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| Affiliation: | Environmental Corrosion Center, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China |
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| Abstract: | Nano-TiO_2 concentrated slurries with low viscosity were prepared by special processes that could be well dispersed and reserved stably.The TiO_2 powders in the concentrated slurries mainly existed in the state of single particles according to the TEM observation.XRD patterns indicated that the TiO_2 still kept original crystal type and didn't bring impurities into the nano-TiO_2 concentrate slurries.FTIR proved that the dispersant tightly adsorbed at the surface of nano-TiO_2 by chemisorption,and induced the nano-particle to keep stable in the aqueous dispersion due to the electric repulsion force and steric effect. |
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| Keywords: | nano-TiO2 dispersion stability viscosity |
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