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Nouveaux matériaux composites thermoformables à base de fibres de cellulose

Abstract : The aim of this study is to elaborate new composite materials made from renewable resources both in terms of the reinforcing elements and the matrix. Biopolymers are the most suitable candidates in this context. More precisely, these materials are made of cellulose fibres and biodegradable thermoplastic. The preparation of such composite materials requires good interfacial properties between the two phases constituting the composite. For this purpose the compatibilisation between the fibres and the matrix, or even better, their copolymerization is necessary. To achieve such performances, chemical modifications are performed on one of the constituents through bi-functional coupling agents (dianhydrides, diisocyanates, silicon compounds and functionalized polyolefin). The processing of these materials is done by conventional techniques, commonly used in plastics industries like extrusion and solvent casting. The biodegradability of the fibers and the ageing of materials, as well as, their thermomechanical properties are studied. This study constitutes an alternative solution to substitute materials arising from fossil resources and causing enormous pollution problems.
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Contributor : Emmanuelle Belgacem <>
Submitted on : Tuesday, April 1, 2008 - 3:00:01 PM
Last modification on : Thursday, November 19, 2020 - 12:59:25 PM
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  • HAL Id : tel-00268828, version 1




El Hadji Babacar Ly. Nouveaux matériaux composites thermoformables à base de fibres de cellulose. Matériaux. Institut National Polytechnique de Grenoble - INPG, 2008. Français. ⟨tel-00268828⟩



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