| 天然苦咸水浸泡凹凸棒石的胶体性能研究 |
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| 引用本文： | 王爱勤,王方方,王文波,康玉茹,张继义. 天然苦咸水浸泡凹凸棒石的胶体性能研究[J]. 精细化工, 2014, 31(3) |
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| 作者姓名： | 王爱勤 王方方 王文波 康玉茹 张继义 |
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| 作者单位： | 中国科学院兰州化学物理研究所,中国科学院兰州化学物理研究所,中国科学院兰州化学物理研究所,中国科学院兰州化学物理研究所,兰州理工大学 |
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| 基金项目： | 国家高技术研究发展计划（863计划） |
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| 摘 要： | 利用天然苦咸水浸泡凹凸棒石黏土，考察了浸泡时间对凹凸棒石黏度、流变性和悬浮性等性能的影响。结果表明，苦咸水中所含的金属离子与凹凸棒石棒晶表面离子发生了交换反应，改变了棒晶的表面电荷，从而影响凹凸棒石的胶体性能。浸泡90d后，凹凸棒石表现出最优的悬浮稳定性，浸泡180d后，凹凸棒石的黏度从1188 mPa.s提高到2444 mPa.s。
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| 关 键 词： | 凹凸棒石；苦咸水；胶体性能；黏度；离子交换 |
| 收稿时间： | 2013-12-01 |
| 修稿时间： | 2014-01-04 |
Study on colloidal properties of the attapulgite soaked with natural brackish water |
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| WANG Ai-qin,WANG Fang-fang,WANG Wen-bo,KANG Yu-ru and ZHANG Ji-yi. Study on colloidal properties of the attapulgite soaked with natural brackish water[J]. Fine Chemicals, 2014, 31(3) |
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| Authors: | WANG Ai-qin WANG Fang-fang WANG Wen-bo KANG Yu-ru ZHANG Ji-yi |
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| Affiliation: | Lanzhou Institute of Chemical Physics, Chinese Academy of Science,Lanzhou Institute of Chemical Physics, Chinese Academy of Science,Lanzhou Institute of Chemical Physics, Chinese Academy of Science,Lanzhou University of Technology |
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| Abstract: | Attapulgite clay was soaked with natural brackish water, and the effects of soaking time on the viscosity, rheological and suspension stability of attapulgite were intensively investigated. The results indicate that the metal ions in the brackish water were exchanged with the surface ions of attapulgite, which altered the surface charges of attapulgite and thus improved its colloidal properties. After soaking for 90 d, attapulgite exhibits the best suspension stability. After soaking for 180d, the rotary viscosity of attapulgite was increased from 1188 mPa.s to 2444 mPa.s. |
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| Keywords: | attapulgite brackish water colloidal properties viscosity ion-exchange |
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