Original title: Thermal behaviour of organically modified smectites
Authors: Plevová, Eva ; Vaculíková, Lenka ; Valovičová, Věra ; Simha Martynková, G.
Document type: Papers
Conference/Event: NanoOstrava 2019 - Nanomaterials and Nanotechnology Meeting /6./, VŠB - Technická univerzita Ostrava (CZ), 20190513
Year: 2019
Language: eng
Abstract: The smectites were modified with different types of alkylammonium cations. The X-ray powder diffraction was used to calculate the values of the basal space of the modified smectites to confirm the intercalation of cations into the structure. The montmorillonites were also characterized by means of FTIR spectroscopy, which proved sorption or intercalation of the alkylammonium cations too. Thermal behaviour of the smectites was investigated by simultaneous thermogravimetry and differential thermal analysis. The temperatures of dehydratation and dehydroxylation and the temperatures related to total melting and recrystallization generally changed. Study of temperatures changes together with determination of kinetic parameters helped to obtained a comprehensive assessment of smectite thermal stability.
Keywords: intercalation; smectites; thermal analysis
Project no.: LO1406 (CEP)
Funding provider: GA MŠk
Host item entry: Book of Abstracts, NanoOstrava2019, ISBN 978-80-248-4290-5

Institution: Institute of Geonics AS ČR (web)
Document availability information: Fulltext is available in the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0298831

Permalink: http://www.nusl.cz/ntk/nusl-403625


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Research > Institutes ASCR > Institute of Geonics
Conference materials > Papers