Structure of organoclays--an X-ray diffraction and thermogravimetric analysis study.

  title={Structure of organoclays--an X-ray diffraction and thermogravimetric analysis study.},
  author={Yunfei Xi and Zhe Ding and Hongping He and Ray L. Frost},
  journal={Journal of colloid and interface science},
  volume={277 1},
X-ray diffraction has been used to study the changes in the surface properties of a montmorillonitic clay through the changes in the basal spacings of montmorillonite (SWy-2) and surfactant-intercalated organoclays. Variation in the d-spacing was found to be a step function of the surfactant concentration. High-resolution thermogravimetric analysis (HRTG) shows that the thermal decomposition of SWy-2-MMTs modified with the surfactant octadecyltrimethylammonium bromide takes place in four steps… CONTINUE READING
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