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Structure and performance of anionic-cationic-organo-montmorillonite in different organic solvents

机译：不同有机溶剂中阴离子阳离子 - 有机锰矿石的结构与性能

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摘要

Montmorillonite (Mt) was modified in aqueous solution by cetyltrimethyl ammonium bromide (CTAB) and sodium dodecyl sulfonate (SDS) under ultrasonic conditions at 60 degrees C. Anionic-cationic-organomontmorillonite (ACOMt) was characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM) and contact angle measurement. The results indicated that ACOMt was prepared successfully, and the polar property of ACOMt was higher than that of cationic-organo-montmorillonite (COMt). The results of SEM proved that there were great amounts of loose and thin platelets of ACOMt. In addition, the properties of ACOMt in three organic solvents were investigated using XRD, SEM, optical microscopy and viscometry, etc. The results of the XRD patterns demonstrated that the basal spacing of ACOMt became small because of parts of the surfactants getting out of the interlayer after being dispersed in the organic solvents. Moreover, with the increase in the solvent polarity, the amounts of surfactants getting out of the interlayer increased. The results of optical microscopy revealed that, with the increase of surfactants and the polar property, the dispersibility of powdery samples in the organic solvents improved and ACOMt in a highly polar solvent showed the best dispersibility. However, the results of SEM indicated that the morphology of ACOMt dispersed in three organic solvents was not significantly different. Meanwhile, dispersion of ACOMt in xylene exhibited the best thixotropic properties and apparent viscosity.
机译：通过X射线衍射（XRD）在超声波条件下通过甲基三甲基溴化铋（CTAB）和十二烷基磺酸钠（SDS）在水溶液中在水溶液中进行修饰。扫描电子显微镜（SEM）和接触角测量。结果表明，ACOMT成功制备，ACOMT的极性性质高于阳离子 - 有机锰矿石（COMT）。 SEM的结果证明，亚氨基的血液有很大的松散和薄血小板。此外，使用XRD，SEM，光学显微镜和粘度法研究了三种有机溶剂中Acomt的性质等。XRD图案的结果表明，由于表面活性剂的部分原因，Acomt的基础间距变小分散在有机溶剂中后的夹层。此外，随着溶剂极性的增加，从中间层出来的表面活性剂的量增加。光学显微镜的结果显示，随着表面活性剂的增加和极性性质，在高极性溶剂中改善的有机溶剂中的粉末样品的分散性显示出最佳的分散性。然而，SEM的结果表明，分散在三种有机溶剂中的Acomt的形态没有显着差异。同时，Acomt在二甲苯中的分散表现出最佳触变性和表观粘度。

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  • 来源
    《RSC Advances》 |2016年第60期|共7页
  • 作者

    Sun Jinlong; Zhuang Guanzheng; Wu Sanqin; Zhang Zepeng;

  • 作者单位

    China Univ Geosci Sch Mat Sci &

    Technol 29 Xueyuan Rd Beijing 100083 Peoples R China;

    China Univ Geosci Sch Mat Sci &

    Technol 29 Xueyuan Rd Beijing 100083 Peoples R China;

    China Univ Geosci Sch Mat Sci &

    Technol 29 Xueyuan Rd Beijing 100083 Peoples R China;

    China Univ Geosci Sch Mat Sci &

    Technol 29 Xueyuan Rd Beijing 100083 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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