天然青海湖水浸泡凹凸棒石对胶体性能的影响
Effect of Soaking with Qinghai Lake Water on the Colloidal Properties of Attapulgite
查看参考文献14篇
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文摘
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利用天然青海湖水浸泡凹凸棒石黏土,考察了浸泡时间对其胶体性能的影响。红外光谱(FTIR)、X-射线衍射(XRD)、扫描电镜(SEM)和Zeta电位分析以及胶体性能测试结果表明,湖水浸泡未改变凹凸棒石的晶体结构和棒晶形态,湖水中的金属离子与凹凸棒石棒晶表面的离子发生了交换反应。浸泡90 d后凹凸棒石的表面电荷增加,浸泡180 d后样品旋转黏度从1188 mPa ? s提高到2376 mPa ? s,胶体稳定性也最好。 |
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其他语种文摘
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Attapulgite was soaked with the Qinghai lake water. The effects of soaking time on the colloidal properties of attapulgite clay were investigated. The results from the Fourier transform infrared spectroscopy (FTIR),X-ray diffraction (XRD),the scanning electronic microscope (SEM) and Zeta potentials analyses as well as the measurements of colloidal properties indicated that the crystal structure and rod morphology of attapulgite have no obvious change after soaking, and the metal ions in the lake water were exchanged with the ions on the surface of attapulgite. The surface charge of attapulgite was increased after soaking for 90 d. After soaking 180 d, the rotary viscosity was enhanced from 1188 mPa ?s to 2376 mPa ? s,and the colloidal stability is also optimal. |
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来源
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硅酸盐通报
,2014,33(5):1013-1017,1027 【核心库】
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关键词
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凹凸棒石
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湖水
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浸泡时间
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黏度
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胶体性能
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地址
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1.
兰州理工大学石油化工学院, 兰州, 730050
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中国科学院兰州化学物理研究所盱眙凹土应用技术研发中心, 盱眙, 211700
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1001-1625 |
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学科
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矿业工程 |
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基金
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国家863计划
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江苏省科技支撑项目
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文献收藏号
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CSCD:5161973
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