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2010-05-01 - Article/Dans un journal avec peer-review - Anglais - 12 page(s)

Marius Murariu, Dechief Anne Laure, Bonnaud Leila, Yoann Paint, Gallos Antoine, Fontaine Gaëlle, Bourbigot Serge, Dubois Philippe , "The production and properties of polylactide composites filled with expanded graphite" in Polymer Degradation and Stability, 95, 5, 889-900

  • Edition : Elsevier (Netherlands)
  • Codes CREF : Chimie macromoléculaire (DI1315), Catalyses hétérogène et homogène (DI1334)
  • Unités de recherche UMONS : Matériaux Polymères et Composites (S816)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
Texte intégral :

Abstract(s) :

(Anglais) Composites have been produced by melt-blending biodegradable polylactide (PLA) with commercially available expanded graphite (EG). Using different techniques of addition, the manifold effects of EG on PLA molecular, thermo-mechanical and fire-retardant properties were evaluated. The EG nanofiller provides PLA composites with competitive functional properties. They have a high rigidity, with Young's modulus and storage modulus increasing with EG content. They also have excellent thermal stability while preserving the glass transition and melting temperature of the original PLA matrix. Purification and pre-dispersion of EG nanofiller proved beneficial for preserving PLA molecular weights and led to improved mechanical performance. The presence of dispersed graphene nanolayers in PLA significantly accelerated the polyester crystallization process. The flame retardant properties also displayed improvements with a large decrease in the maximum rate of heat release as recorded by cone calorimetry, whereas the horizontal burning test (UL94 HB) was successfully passed revealing non-dripping and char formation.

Notes :
  • (Anglais) Lecture en ligne: http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TXS-4Y52R1G-2-R&_cdi=5598&_user=532054&_pii=S0141391010000042&_origin=search&_coverDate=05%2F31%2F2010&_sk=999049994&view=c&wchp=dGLzVzb-zSkzS&md5=00467972b89b253e943b7814de3256a4
  • (Anglais) Publié en ligne le 13 janvier 2010
Identifiants :
  • DOI : 10.1016/j.polymdegradstab.2009.12.019