| 乙酸镁改性对凹凸棒黏土微结构和黏度的影响 |
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| 引用本文： | 蔡佳佳,徐惠,王爱勤.乙酸镁改性对凹凸棒黏土微结构和黏度的影响[J].硅酸盐通报,2012,31(3):516-520. |
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| 作者姓名： | 蔡佳佳 徐惠 王爱勤 |
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| 作者单位： | 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,兰州730000;兰州理工大学石油化工学院,兰州730050;兰州理工大学石油化工学院,兰州,730050;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,兰州,730000 |
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| 基金项目： | 江苏省重大创新载体建设项目资助 |
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| 摘 要： | 选用不同浓度乙酸镁对凹凸棒黏土进行改性处理,采用FT-IR、XRD和SEM进行了结构表征,测定了改性前后凹凸棒黏土的比表面积、组成和Zeta电位,考察了乙酸镁浓度对凹凸棒黏土在自来水和饱和氯化钠盐水中黏度的影响.结果表明,在乙酸镁浓度为10％时,改性凹凸棒黏土表现出最高的黏度,乙酸镁与棒晶间的离子交换作用是黏度提高的主要因素.
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| 关 键 词： | 凹凸棒黏土 乙酸镁 黏度 微结构 |
Effects of Modification by Magnesium Acetate on Microstructure and Viscosity of Attapulgite Clay |
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| CAI Jia-jia
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XU Hui
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WANG Ai-qin.Effects of Modification by Magnesium Acetate on Microstructure and Viscosity of Attapulgite Clay[J].Bulletin of the Chinese Ceramic Society,2012,31(3):516-520. |
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| Authors: | CAI Jia-jia XU Hui WANG Ai-qin |
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| Affiliation: | 1(1.Research and Development Center of Xuyi Attapulgite Applied Technology,Lanzhou Institute of Chemical Physics,Chinese Academy of Science,Lanzhou 730000,China; 2.College of Petrochemical Technology,Lanzhou University of Technology,Lanzhou 730050,China) |
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| Abstract: | The attapulgite was modified by different concentration of magnesium acetate solutions.The effect of modification on the micro-structure and physico-chemical properties of attapulgite was revealed by infrared spectroscopy(FT-IR),X-ray diffraction(XRD),scanning electronic microscope(SEM),BET specific area,chemical composition and Zeta potentials analyses.The effect of the concentration of magnesium acetate on the viscosity of attapulgite suspension in distilled water and saturated NaCl solution was studied.The results indicated that the modified attapulgite exhibits the best viscosity in both distilled water and saturated NaCl solution with magnesium acetate concentration of 10% and the ion-exchange between magnesium acetate with attapulgite is the main factor to improve the viscosity. |
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| Keywords: | attapulgite clay magnesium acetate viscosity micro-structure |
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