On the use of ball milling to develop PHBV-graphene nanocomposites (I)-Morphology, thermal properties, and thermal stability
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Otros documentos de la autoría: Ambrosio Martín, Jesús; Gorrasi, Giuliana; López Rubio, Amparo; Fabra, María José; Cabedo, Luis; López Manchado, Miguel Angel; LAGARON, Jose
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Título
On the use of ball milling to develop PHBV-graphene nanocomposites (I)-Morphology, thermal properties, and thermal stabilityAutoría
Fecha de publicación
2015-03xmlui.dri2xhtml.METS-1.0.item-edition
Preprint, versió de l'autorEditor
© 2015 Wiley Periodicals, Inc.Cita bibliográfica
AMBROSIO‐MARTÍN, Jesús, et al. On the use of ball milling to develop PHBV–graphene nanocomposites (I)—Morphology, thermal properties, and thermal stability. Journal of Applied Polymer Science, 2015, 132.24.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://onlinelibrary.wiley.com/wol1/doi/10.1002/app.42101/fullPalabras clave / Materias
Resumen
In the first part of this work, novel nanocomposites based on poly (3-hydroxybutyrate co-3-hydroxyvalerate) (PHBV) and functionalized graphene nanosheets (FGS) were prepared through ball milling. As revealed by ... [+]
In the first part of this work, novel nanocomposites based on poly (3-hydroxybutyrate co-3-hydroxyvalerate) (PHBV) and functionalized graphene nanosheets (FGS) were prepared through ball milling. As revealed by morphological characterization, this blending methodology was able to allow proper nanofiller dispersion and distribution into the matrix. Thermal properties were studied under non-isothermal and isothermal conditions and the addition of FGS into PHBV matrix, although no changes in crystallization mechanism were observed, it modified the crystallization kinetics leading to increased crystallinity. Thermal stability analysis revealed that FGS affected the mechanism of oxidative thermal degradation and had no effect on thermal degradation by pyrolysis. Furthermore, an analysis of isothermal degradation kinetics showed that FGS speeded up the degradation rate. The Sestak-Berggren model was used as a model to explain the isothermal degradation behavior of the obtained materials in good agreement with the experimental data. [-]
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Journal of Applied Polymer Science, Volume 132, Issue 24, June 20, 2015Derechos de acceso
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