Isothermal vulcanization and nonisothermal degradation kinetics of XNBR/Epoxy/XNBR-g-Halloysite Nanotubes (HNT) nanocomposites
PublisherMultidisciplinary Digital Publishing Institute (MDPI)
Rights accessOpen Access
The effect of several concentrations of carboxylated nitrile butadiene rubber (XNBR)functionalized halloysite nanotubes (XHNTs) on the vulcanization and degradation kinetics ofXNBR/epoxy compounds were evaluated using experimental and theoretical methods. The isother-mal vulcanization kinetics were studied at various temperatures by rheometry and differentialscanning calorimetry (DSC). The results obtained indicated that the nthorder model could not accu-rately predict the curing performance. However, the autocatalytic approach can be used to estimatethe vulcanization reaction mechanism of XNBR/epoxy/XHNTs nanocomposites. The kinetic pa-rameters related to the degradation of XNBR/epoxy/XHNTs nanocomposites were also assessedusing thermogravimetric analysis (TGA). TGA measurements suggested that the grafted nanotubesstrongly enhanced the thermal stability of the nanocomposite
CitationParan, S. [et al.]. Isothermal vulcanization and nonisothermal degradation kinetics of XNBR/Epoxy/XNBR-g-Halloysite Nanotubes (HNT) nanocomposites. "Materials", 27 Maig 2021, vol. 14, núm. 11, p. 2872:1-2872:19.