Surface modification of montmorillonite clay with organic molecules
Musabekov K.B. Artykova D.M-K. Tazhibayeva S.M. Oryntaeva A. Sugurbekova G.K. Kulichikhin V.
2021Rasayan Journal of Chemistry, c/o Dr. Pratima Sharma
Rasayan Journal of Chemistry
2021#14Issue 1635 - 640 pp.
In this paper, the organoclay was synthesized by the modification of the Na-montmorillonite from the deposit of Tagan (East Kazakhstan) with octadecylamine (ODA). Using X-ray phase analysis, the intercalation of ODA molecules in the interlayer spaces of the mineral was studied. The presence of ODA in the clay structure and the formation of hydrogen bonds in it after modification were confirmed by IR spectroscopy. According to the results of dynamic light scattering, a decrease in the particle size of montmorillonite after modification was shown. The TGA curves showed a decrease in the content of bound water in organoclay compared with the initial mineral. The determination of the contact angles made it possible to ascertain the substantial hydrophobization of montmorillonite and to create an optimal concentration of ODE causing this effect.
Hydrophobization of Montmorillonite , Montmorillonite modification , Octadecylamine , Organo-clay
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Department of Analytical, Colloidal Chemistry and Technology of Rare Elements, Faculty of Chemistry and Chemical Technologies, Al-Farabi Kazakh National University, Al-Farabi Av. 71, Almaty, 050000, Kazakhstan
Laboratory of Physical Chemistry, NURIS, Nazarbaev University, 53 Kabanbay batyr Ave, Nur-Sultan, 010000, Kazakhstan
A. V. Topchiev Institute of Petrochemical Synthesis, RAS, Leninsky Ave.29, Moscow, 119991, Russian Federation
Department of Analytical
Laboratory of Physical Chemistry
A. V. Topchiev Institute of Petrochemical Synthesis
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