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Artículo

Impact of different nanoparticles on the thermal degradation kinetics of phenolic resin nanocomposites

Asaro, LucíaIcon ; D'amico, David AlbertoIcon ; Alvarez, Vera AlejandraIcon ; Rodriguez, Exequiel SantosIcon ; Manfredi, Liliana BeatrizIcon
Fecha de publicación: 30/01/2017
Editorial: Springer
Revista: Journal of Thermal Analysis and Calorimetry
ISSN: 1388-6150
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Recubrimientos y Películas

Resumen

The effect of different contents of nano-fillers: carbon black (CB), bentonites (original (Bent) and modified with phosphonium salt (B-TBHP)) and commercial modified montmorillonite (C30B) on the thermal degradation of phenolic resin was studied by thermogravimetric analysis (TG). The obtained results strongly suggest that CB was the most effective filler in improving the thermal stability of the resol type phenolic matrix. The previous results were associated with the thermal stability of each filler but also with the compatibility between the matrix and the filler and the effect of filler incorporation on the crosslinking degree of the neat matrix. The profile of the apparent activation energy with the conversion of the thermal degradation process for the resol and the nanocomposites was obtained using three isoconversional methods: Friedman, KAS and Vyazovkin. The curves were correlated with the degradation steps of the phenolic resin observed by TG, showing a similar degradation mechanism for all the systems. By means of the method of invariant kinetic parameters (IKP), it was possible to estimate the preexponential factor and the activation energy to describe the degradation process of the resol and the nanocomposites in the thermal fragmentation zone, between 350 and 600 ºC. It was determined that the Sestak?Berggren model was the one that best describes the thermal degradation experimental data. Then, a comparison between the experimentally obtained and the simulated differential degradation curves shows that the resulting model was certainly accurate to predict the thermal degradation process of the resol and the nanocomposites.
Palabras clave: Phenolic Resin , Nano-Filler , Composites , Thermal Degradation , Kinetic Models
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/32807
URL: https://link.springer.com/article/10.1007/s10973-017-6103-0
DOI: http://dx.doi.org/10.1007/s10973-017-6103-0
Colecciones
Articulos(INTEMA)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Citación
D'amico, David Alberto; Rodriguez, Exequiel Santos; Manfredi, Liliana Beatriz; Alvarez, Vera Alejandra; Asaro, Lucía; Impact of different nanoparticles on the thermal degradation kinetics of phenolic resin nanocomposites; Springer; Journal of Thermal Analysis and Calorimetry; 128; 3; 30-1-2017; 1463–1478
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