2025 (4) 6
https://doi.org/10.15407/polymerj.47.04.222
STUDYING THE INFLUENCE OF AEROSIL FILLING METHOD ON THE THERMAL PROPERTIES OF NANOSTRUCTURED POLYMER SYSTEMS
VALERIY DAVYDENKO (ORCID: 0000-0003-0771-2679)
Institute of Macromolecular Chemistry of the NAS of Ukraine, 48 Kharkivske Highway, Kyiv 02155, Ukraine
Abstract
The thermal stability of polyurethane filled with aerosil suspension is higher than that of polyurethane filled with dry aerosil. The thermal decomposition of polyurethane follows the Arenius equation and occurs via an autocatalysis mechanism. The reaction mechanism remains unchanged regardless of the composition obtained and is consistent for all compositions with a small filler amount. Increasing the suspension aerosil concentration (solid content> 20%) alters the reaction mechanism and reduces the composite’s thermal stability.
Keywords: aerosil, thermal properties, nanostructured systems.
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