Preparation and Characterization of Clay Chocolate "A" Organoclay Using Stearyldimethyl Ammonium Chloride as a Surfactant

Abstract:

Clays modified with quaternary ammonium salts, organoclays, have an affinity for organic compounds undergoing expansion. In this study, the smectite clay Chocolate" A" was subjected to the process of organophilization with quaternary ammoniumchloride, stearyl dimethyl ammonium chloride (Praepagen WB) to improve its hydrophobic properties and thus increase the affinity for organic compounds. The samples were characterized by X ray diffraction (XRD), infrared spectroscopy and tests of expansion by swelling of Foster. The results showed appropriate conditions organophilization process. Through XRD confirmed the increase in basal spacing for the clay modified with respect to the clay in natural, 15.46Å to 19.99Å after treatment with the quaternary ammonium salt. Bands of the CH₃ and CH₂ were detected by infrared spectroscopy analysis of the sample and the organoclay according to the tests of expansion was possible to observe the affinity of the organoclay with organic compounds: gasoline, kerosene and diesel.

• Periodical: Materials Science Forum (Volume 805)
• Pages: 667-671
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.805.667
• Online since: September 2014
• Authors: Mariaugusta Ferreira Mota, Aline Cadigena Lima Patrício, Marcílio Máximo da Silva, Meiry Glaúcia Freire Rodrigues
• Keywords: Clay Chocolate, Stearyldimethyl Ammonium, Surfactant

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