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Minerals
Volume 10
Issue 9
10.3390/min10090732
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Communication

Comparative Study of the Hydrophobicity of Organo-Montmorillonite Modified with Cationic, Amphoteric and Nonionic Surfactants

by
Georgy Lazorenko
*,
Anton Kasprzhitskii
and
Victor Yavna
Department of Physics, Rostov State Transport University, Narodnogo Opolcheniya Sq., 344038 Rostov-on-Don, Russia
*
Author to whom correspondence should be addressed.
Minerals 2020, 10(9), 732; https://doi.org/10.3390/min10090732
Submission received: 10 July 2020 / Revised: 7 August 2020 / Accepted: 18 August 2020 / Published: 19 August 2020
(This article belongs to the Special Issue Synthesis and Characterization of Layered Minerals/Polymer Nanocomposites)
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Abstract

In this work, a series of comparative studies for the effect of the nine commercially available cationic, amphoteric and nonionic surfactants on the structure and wettability of the montmorillonite based organoclays were performed. The pristine and modified clays were characterized by X-ray diffraction (XRD), attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy, and water contact angle (CA) measurements. It has been observed that the maximum basal spacing and the hydrophobicity of the organoclays increased with the alkyl chain length and chain number of the surfactant. It was found out that this effect is most pronounced when using cationic surfactants. The maximum value of contact angle corresponded to the organoclay obtained using di(hydrogenated tallow) ammonium chloride (DDA). The outcomes of this study are important and relevant to the preparation of effective organoclays for geotechnical, petroleum and polymer nanocomposite applications.
Keywords: clay minerals; montmorillonite; surfactant; hydrophobicity; wettability clay minerals; montmorillonite; surfactant; hydrophobicity; wettability
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MDPI and ACS Style

Lazorenko, G.; Kasprzhitskii, A.; Yavna, V. Comparative Study of the Hydrophobicity of Organo-Montmorillonite Modified with Cationic, Amphoteric and Nonionic Surfactants. Minerals 2020, 10, 732. https://doi.org/10.3390/min10090732

AMA Style

Lazorenko G, Kasprzhitskii A, Yavna V. Comparative Study of the Hydrophobicity of Organo-Montmorillonite Modified with Cationic, Amphoteric and Nonionic Surfactants. Minerals. 2020; 10(9):732. https://doi.org/10.3390/min10090732

Chicago/Turabian Style

Lazorenko, Georgy, Anton Kasprzhitskii, and Victor Yavna. 2020. "Comparative Study of the Hydrophobicity of Organo-Montmorillonite Modified with Cationic, Amphoteric and Nonionic Surfactants" Minerals 10, no. 9: 732. https://doi.org/10.3390/min10090732

APA Style

Lazorenko, G., Kasprzhitskii, A., & Yavna, V. (2020). Comparative Study of the Hydrophobicity of Organo-Montmorillonite Modified with Cationic, Amphoteric and Nonionic Surfactants. Minerals, 10(9), 732. https://doi.org/10.3390/min10090732

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