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Investigations on the topography and micro-mechanical properties of polyvinyl alcohol thin-film composites reinforced with hardwood biocarbon particlesZouari, Mariem ...In this study, we investigated the impact on surface topography and micro-mechanical properties of polyvinyl alcohol (PVA) thin films when loaded with hardwood-derived biocarbon particles (BCP). The ... PVA/BCP composites were prepared with the conventional film casting method, after varying BCP concentrations of 6, 8, 10, 12, and 20 wt% were added to the PVA solution. Atomic force microscopy (AFM) investigations and nanoindentation tests were performed. The average roughness of the thin films increased with the increase in BCP content. The alternation between dark and light patterns observed in the AFM images showed an irregular surface topography with alternating high peaks and deep valleys. The skewness and kurtosis parameters showed that the different dispersion degrees of the BCP within the PVA matrix influenced the composites' surface roughness. The micro-mechanical properties of the thin film composites depended on the BCP type and concentration. Films reinforced with red oak-derived BCP had higher hardness and Young's modulus compared to films reinforced with willow SV1 and yellow-poplar BCP, which was attributed to the high carbon content and low ash content of red oak BCP. We argue that these results may be extrapolated to other types of BCP-reinforced thin films and can significantly contribute to enabling more efficient methods and protocols for reinforcing polymers with hardwood biocarbon.Source: Journal of Materials Research and Technology. - ISSN 2238-7854 (Vol. 27, Vol. 27, 2023, str. 5533-5540)Type of material - article, component part ; adult, seriousPublish date - 2023Language - englishCOBISS.SI-ID - 172915203
source: Journal of Materials Research and Technology. - ISSN 2238-7854 (Vol. 27, Vol. 27, 2023, str. 5533-5540)
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Zouari, Mariem | 55495 |
Stanciu, Stefan G. | |
Jakes, Joseph | |
Marrot, Laetitia Sarah Jennifer | 52330 |
Fiorentis, Efstathios | |
Stanciu, George A. | |
DeVallance, David Brian | 51449 |
Source: Personal bibliographies
and: SICRIS
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