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Etude de la durabilité photochimique de composites bois-polymères biodégradables

Abstract : This study focuses on sustainability photochemical biocomposites made ​​of biodegradable polymer matrices and load wood. It helped to highlight the influence of various parameters such as the nature of the matrix or the load on the photostability of materials. Three matrices were used: the PLA, a PBAT: Ecoflex, and a mixture of both: Ecovio. The timber was incorporated in the matrices in the form of powder of different diameters. Poplar and pine were studied. And the effect of heat treatment of wood, called cross-linking was observed on the properties of composites. Photoaging materials was carried out under natural and accelerated conditions. Photooxidation mechanisms have been proposed for each of the materials from the evolution of the viscoelastic properties of the resulting macromolecular structure.
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Submitted on : Tuesday, September 11, 2012 - 4:23:07 PM
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  • HAL Id : tel-00730997, version 1

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Solène Gaudin. Etude de la durabilité photochimique de composites bois-polymères biodégradables. Chimie théorique et/ou physique. Université Blaise Pascal - Clermont-Ferrand II, 2008. Français. ⟨NNT : 2008CLF21868⟩. ⟨tel-00730997⟩

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