| 蒙脱石层电荷与有机改性蒙脱石凝胶性能关系研究 |
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| 引用本文： | 邱俊,陈平,张言贵,吕宪俊.蒙脱石层电荷与有机改性蒙脱石凝胶性能关系研究[J].矿物岩石,2007,27(1):36-39. |
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| 作者姓名： | 邱俊 陈平 张言贵 吕宪俊 |
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| 作者单位： | 1. 山东科技大学化学与环境工程学院,山东,青岛,266510
2. 山东省莱芜市质量技术监督局质检所,山东,莱芜,271100 |
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| 基金项目： | 教育部博士学科点专项科研基金（编号20040424003）;山东科技大学科学发展基金（编号2005g011） |
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| 摘 要： | 利用自然沉降法提取了山东两不同产地膨润土中的钙基蒙脱石矿物M1和M2,利用结构式推算法计算了两提纯蒙脱石的层电荷:M1单位半晶胞的层电荷为0.38,M2单位半晶胞的层电荷为0.59;利用十八烷基三甲基氯化铵对蒙脱石进行有机改性,并对有机蒙脱石凝胶性能和层电荷的相关关系进行研究。研究发现:蒙脱石单位半晶胞的层电荷越低,在水中的分散性越好,越有利于十八烷基三甲基铵阳离子的插层,相应有机改性蒙脱石在二甲苯和乙醇体系中的凝胶性能越好(如M1);蒙脱石单位半晶胞的层电荷越高,在水中的分散性越差,越不利于十八烷基三甲基铵阳离子的插层,相应有机改性蒙脱石产品的凝胶性能较差(如M2)。
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| 关 键 词： | 蒙脱石 层电荷 有机蒙脱石 凝胶性能 |
| 文章编号： | 1001-6872（2007）01-0036-04 |
| 修稿时间： | 2006-11-05 |
STUDY ON RELATION BETWEEN LAYER CHARGE AND GEL PERFORMANCE OF ORGANIC MONTMORILLONITE |
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| QIU Jun,CHEN Ping,ZHANG Yan-gui,LU Xian-jun.STUDY ON RELATION BETWEEN LAYER CHARGE AND GEL PERFORMANCE OF ORGANIC MONTMORILLONITE[J].Journal of Mineralogy and Petrology,2007,27(1):36-39. |
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| Authors: | QIU Jun CHEN Ping ZHANG Yan-gui LU Xian-jun |
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| Institution: | 1. College of Chemical and Environmental Engineering ,SUST,Qingdao 266510,China; 2. Laiwu Institute of Supervision and Inspection on Product Quality,Laiwu 271100 ,China |
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| Abstract: | By means of natural sedimentation,two raw bentonite samples from Shandong Province were purified,layer charge of the two purified montmorillonite samples(M1 and M2)were calculated by way of crystal structure formula.The calculation results showed that the layer charge per half crystal cell of M1 was 0.38,the layer charge per half crystal cell of M2 was 0.59.The two purified montmorillonite samples were organically modified by Octadecyl Trimethyl Ammonium Chloride,the correlation between the layer charge and gel performance of organic montmorillonite was revealed that the lower the layer charge of montmorillonite,the better the decentralization of montmorillonite in water,which are propitious to Octadecyl Trimethyl Ammonium cation inserting into the interlayer of montmorillonite.Therefore,the prepared organic montmorillonite has better gel performance(such as M1)than the one prepared from montmorillonite with higher layer charge(such as M2). |
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| Keywords: | montmorillonite ayer charge organic montmorillonite gel performance |
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