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Clay Modification by the Use of Organic Cations
School of Chemistry and Biochemistry, Thapar University, Patiala, India
Department of Chemical Engineering, Thapar University, Patiala, India
Department of Chemical Engineering, IT-BHU, Varanasi, India
- 1 School of Chemistry and Biochemistry, Thapar University, Patiala, India
- 2 Department of Chemical Engineering, Thapar University, Patiala, India
- 3 Department of Chemical Engineering, IT-BHU, Varanasi, India
Green and Sustainable Chemistry·Volume 02 (2012)·Pages 21–25·Published 17 February 2012·DOI10.4236/gsc.2012.21004
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Abstract
To render layered silicates miscible with polymer matrices, one must convert the normally hydrophilic silicate surface to an organophilic one, making the intercalation of polymeric chain between silicate layers possible. This can be done by ion-exchange reactions with cationic surfactants. Sodium montmorillonite (Na-MMT) was modified with several organic cationic surfactants. Organoclays with water soluble surfactants were prepared by the traditional cation exchange reaction. An alternative procedure was used to prepare organoclays with water insoluble salts. The basal spacing and thermal behavior of organoclays were characterized by X-ray diffraction, XRD and Thermogravimetric analysis, TGA respectively.
KeywordsMontmorilloniteOrgano-MontmorilloniteSurfactantBasal Spacing
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