Comparison of the Properties and Structure of Montmorillonites Modified with Polyvinylpyrrolidone
The modification method of aluminosilicate clays and the modifier content have a decisive influence on the structure and properties of the obtained nanocomposites. Therefore, the development and research of new techniques of nanoclays modification are of great importance for polymer nano-chemistry....
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| Format: | Article |
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MDPI AG
2024-04-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/14/7/2983 |
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| author | Volodymyr Krasinskyi Ludmila Dulebova Rafał Malinowski Krzysztof Bajer Oksana Krasinska |
| author_facet | Volodymyr Krasinskyi Ludmila Dulebova Rafał Malinowski Krzysztof Bajer Oksana Krasinska |
| author_sort | Volodymyr Krasinskyi |
| collection | DOAJ |
| description | The modification method of aluminosilicate clays and the modifier content have a decisive influence on the structure and properties of the obtained nanocomposites. Therefore, the development and research of new techniques of nanoclays modification are of great importance for polymer nano-chemistry. The work studied the modification of montmorillonite (MMT) using polyvinylpyrrolidone (PVP) in an aqueous colloidal solution with the subsequent separation of three separate fractions of the solution according to the previously developed method. The influence of the initial mass ratio of components (MMT/PVP) on the structure and thermal properties of the modified MMT in each solution layer was determined. Scanning electron microscopy (SEM), X-ray diffraction (XRD), thermal gravimetry (TG), differential scanning calorimetry (DSC), and Fourier-transform infrared (FTIR) spectroscopy were used for research. It was established that the mass ratio of components in the initial solution has almost no effect on the structure of MMT in the top and middle solution layers, but significantly affects the yield of final products. Different structures can be obtained in the bottom layer of the solution. Still, intercalated MMT was obtained exclusively at the mass ratio of MMT/PVP = 1:2. In addition, the work investigated the structure and thermal properties of modified montmorillonites with the same PVP content, and it has been proven that such composites have dissimilar structures and properties when obtained by different methods. |
| first_indexed | 2024-04-24T10:49:13Z |
| format | Article |
| id | doaj.art-b1096f668fcb4cacb39440d513754e3a |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-04-24T10:49:13Z |
| publishDate | 2024-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-b1096f668fcb4cacb39440d513754e3a2024-04-12T13:15:22ZengMDPI AGApplied Sciences2076-34172024-04-01147298310.3390/app14072983Comparison of the Properties and Structure of Montmorillonites Modified with PolyvinylpyrrolidoneVolodymyr Krasinskyi0Ludmila Dulebova1Rafał Malinowski2Krzysztof Bajer3Oksana Krasinska4Łukasiewicz Research Network—Institute for Engineering of Polymer Materials and Dyes, M. Skłodowska-Curie 55 St., 87-100 Torun, PolandDepartment Technologies, Materials and Computer Supported Production, Faculty of Mechanical Engineering, Technical University of Košice, Masiarska 74 St., 04001 Košice, SlovakiaŁukasiewicz Research Network—Institute for Engineering of Polymer Materials and Dyes, M. Skłodowska-Curie 55 St., 87-100 Torun, PolandŁukasiewicz Research Network—Institute for Engineering of Polymer Materials and Dyes, M. Skłodowska-Curie 55 St., 87-100 Torun, PolandŁukasiewicz Research Network—Institute for Engineering of Polymer Materials and Dyes, M. Skłodowska-Curie 55 St., 87-100 Torun, PolandThe modification method of aluminosilicate clays and the modifier content have a decisive influence on the structure and properties of the obtained nanocomposites. Therefore, the development and research of new techniques of nanoclays modification are of great importance for polymer nano-chemistry. The work studied the modification of montmorillonite (MMT) using polyvinylpyrrolidone (PVP) in an aqueous colloidal solution with the subsequent separation of three separate fractions of the solution according to the previously developed method. The influence of the initial mass ratio of components (MMT/PVP) on the structure and thermal properties of the modified MMT in each solution layer was determined. Scanning electron microscopy (SEM), X-ray diffraction (XRD), thermal gravimetry (TG), differential scanning calorimetry (DSC), and Fourier-transform infrared (FTIR) spectroscopy were used for research. It was established that the mass ratio of components in the initial solution has almost no effect on the structure of MMT in the top and middle solution layers, but significantly affects the yield of final products. Different structures can be obtained in the bottom layer of the solution. Still, intercalated MMT was obtained exclusively at the mass ratio of MMT/PVP = 1:2. In addition, the work investigated the structure and thermal properties of modified montmorillonites with the same PVP content, and it has been proven that such composites have dissimilar structures and properties when obtained by different methods.https://www.mdpi.com/2076-3417/14/7/2983montmorillonitepolyvinylpyrrolidonemodification in solutionstructureintercalationexfoliation |
| spellingShingle | Volodymyr Krasinskyi Ludmila Dulebova Rafał Malinowski Krzysztof Bajer Oksana Krasinska Comparison of the Properties and Structure of Montmorillonites Modified with Polyvinylpyrrolidone Applied Sciences montmorillonite polyvinylpyrrolidone modification in solution structure intercalation exfoliation |
| title | Comparison of the Properties and Structure of Montmorillonites Modified with Polyvinylpyrrolidone |
| title_full | Comparison of the Properties and Structure of Montmorillonites Modified with Polyvinylpyrrolidone |
| title_fullStr | Comparison of the Properties and Structure of Montmorillonites Modified with Polyvinylpyrrolidone |
| title_full_unstemmed | Comparison of the Properties and Structure of Montmorillonites Modified with Polyvinylpyrrolidone |
| title_short | Comparison of the Properties and Structure of Montmorillonites Modified with Polyvinylpyrrolidone |
| title_sort | comparison of the properties and structure of montmorillonites modified with polyvinylpyrrolidone |
| topic | montmorillonite polyvinylpyrrolidone modification in solution structure intercalation exfoliation |
| url | https://www.mdpi.com/2076-3417/14/7/2983 |
| work_keys_str_mv | AT volodymyrkrasinskyi comparisonofthepropertiesandstructureofmontmorillonitesmodifiedwithpolyvinylpyrrolidone AT ludmiladulebova comparisonofthepropertiesandstructureofmontmorillonitesmodifiedwithpolyvinylpyrrolidone AT rafałmalinowski comparisonofthepropertiesandstructureofmontmorillonitesmodifiedwithpolyvinylpyrrolidone AT krzysztofbajer comparisonofthepropertiesandstructureofmontmorillonitesmodifiedwithpolyvinylpyrrolidone AT oksanakrasinska comparisonofthepropertiesandstructureofmontmorillonitesmodifiedwithpolyvinylpyrrolidone |