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dc.contributor.authorPistor, Viniciuspt_BR
dc.contributor.authorSoares, Bluma Guentherpt_BR
dc.contributor.authorMauler, Raquel Santospt_BR
dc.date.accessioned2021-07-23T04:40:59Zpt_BR
dc.date.issued2013pt_BR
dc.identifier.issn0104-1428pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/224389pt_BR
dc.description.abstractIn this study, epoxy nanocomposites containing different fractions of n-phenylaminopropyl (POSS) were prepared. The nanocomposites were studied by transmission electron microscopy (TEM), gel content, dynamicmechanical analysis (DMA) and thermogravimetric analysis (TGA). The parameters for Avrami’s equation were calculated from the degradation curves. The dispersions used to form the nanocomposites were effective above 5 wt % of POSS, and the gel content increased with the addition of POSS. The DMA analysis exhibited an increase in the storage modulus (E’) and a shifting of Tg to higher temperatures upon POSS incorporation. The weight loss indicated that the POSS promoted an increase in thermal stability of the epoxy resin. The Avrami parameters demonstrated that the addition of POSS decreased the Avrami constant (k’), increased the half-life (t 1/2) of degradation and promoted changes in the Avrami exponent (n). These results suggest that the increase in the glass transition temperature and thermal stability depend on the reactive groups in the POSS nanoparticles.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofPolímeros: ciência e tecnologia. São Carlos. Vol. 23, n. 3 (maio/jun. 2013), p. 331-338pt_BR
dc.rightsOpen Accessen
dc.subjectEpoxyen
dc.subjectPolímerospt_BR
dc.subjectEstabilidade térmicapt_BR
dc.subjectNanocompositesen
dc.subjectThermal stabilityen
dc.subjectComposto inorgânicopt_BR
dc.subjectNanocompósitospt_BR
dc.subjectGlass transitionen
dc.titleInfluence of the polyhedral oligomeric silsesquioxane n-phenylaminopropyl - POSS in the thermal stability and the glass transition temperature of epoxy resinpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000897555pt_BR
dc.type.originNacionalpt_BR


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