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2010-03-01 - Article/Dans un journal avec peer-review - Anglais - 8 page(s)

Marius Murariu, Bonnaud Leila, Yoann Paint, Fontaine Gaëlle, Bourbigot Serge, Dubois Philippe , "New trends in polylactide (PLA)-based materials: “Green” PLAeCalcium sulfate (nano)composites tailored with flame retardant properties" in Polymer Degradation and Stability, 95, 3, 374-381

  • 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) Starting from gypsum, a by-product of lactic acid fabrication process, novel “green” composites have been produced by melt-blending polylactide (PLA) and this filler after a previous specific dehydration to obtain anhydrite II (AII). Such a material is potentially interesting in biodegradable/rigid packaging and in technical applications requiring rigidity, heat resistance and dimensional stability. In order to obtain PLA–AII composites characterized by specific end-use flame retardant properties, the addition of selected organo-modified layered silicates (OMLS) was considered. Co-addition of AII and OMLS leads to PLA (nano)composites characterized by good (nano)filler dispersion, thermal stability and adequate mechanical resistance. The flame retardant properties as shown by cone calorimetry showed significant increase in the ignition time compared to neat PLA and a substantial decrease, i.e., ca. 40%, of the maximum rate of heat release, whereas the UL94 HB test was successfully passed revealing non-dripping effect and extensive char formation. The study represents a new approach in formulating novel PLA grades with improved characteristic features.

Notes :
  • (Anglais) Lecture en ligne: http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TXS-4XS6FGC-6-F&_cdi=5598&_user=532054&_pii=S0141391009003826&_origin=search&_coverDate=03%2F31%2F2010&_sk=999049996&view=c&wchp=dGLbVlb-zSkzS&md5=944b30695b616f6ad23a4ff92cf87bc2
  • (Anglais) Publié en ligne le 23 novembre 2009
Identifiants :
  • DOI : 10.1016/j.polymdegradstab.2009.11.032