| 有机蛭石的制备及其层间插层剂排布模式研究 |
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| 引用本文： | 孙金梅,彭同江,孙红娟.有机蛭石的制备及其层间插层剂排布模式研究[J].矿物学报,2009,29(2). |
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| 作者姓名： | 孙金梅 彭同江 孙红娟 |
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| 作者单位： | 西南科技大学,矿物材料与应用研究所,四川,绵阳621010 |
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| 摘 要： | 对新疆尉犁蛭石进行钠化改型后用系列烷基季铵盐进行了有机插层处理,利用XRD对样品进行表征.结合季铵盐阳离子的理论几何尺寸,研究了季铵盐阳离子在蛭石晶层的结构和排布方式.结果表明,不同链长烷基季铵盐阳离子在蛭石晶层排列方式的演化途径不同,季铵盐用量和季铵盐阳离子的性质能影响季铵盐阳离子在蛭石晶层的排布方式.当季铵盐用量较低时,季铵盐阳离子在蛭石晶层形成平卧排列,当季铵盐用量较高时,季铵盐阳离子在蛭石晶层形成倾斜排列,且直链烷基越长,季铵盐阳离子在蛭石晶层间越易形成倾斜排列.
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| 关 键 词： | 蛭石 有机插层 排列方式 |
STUDY ON THE MODIFICATION OF XINJIANG VERMICULITE BY PILLARING A SERIES OF QUATERNARY AMMONIUM |
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| SUN Jin-mei,PENG Tong-jiang,SUN Hong-juan.STUDY ON THE MODIFICATION OF XINJIANG VERMICULITE BY PILLARING A SERIES OF QUATERNARY AMMONIUM[J].Acta Mineralogica Sinica,2009,29(2). |
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| Authors: | SUN Jin-mei PENG Tong-jiang SUN Hong-juan |
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| Abstract: | Vermiculite from Weili, Xinjiang, was modified by sodium and intercalated by N-trimethylammonium bromide (CnTAB). The arrangement modeling patterns of CnTA+ in organic pillared vermiculite were studied by XRD and geometry size. The results revealed the different evolution routes about the arrangement model of organic cations in the vermiculite layer. The factors that affect the arrangement model of organic cations in vermiculite layer are the dosage of quaternary ammonium and the character of quaternary ammonium. It is lateral with little ammonium. It is of paraffin type with mass ammonium. The paraffin-type forms easily, as the chains become longer. |
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| Keywords: | vermiculite organic pillared arrangement model |
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