Composite materials made from treated cellulose and plastic

C - Chemistry – Metallurgy – 08 – J

Patent

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Details

C08J 5/06 (2006.01) C08J 11/06 (2006.01) C08L 101/00 (2006.01)

Patent

CA 2441381

The present invention concerns treated fibrous porous material having a defined nanostructure comprising reactive sites thereon, wherein said fibrous porous material is treated with a low viscosity organic solution comprising organic solvent, isocyanate component unsaturated resin and optionally additional additives. The treated fibrous porous material is further mixed with a resin to form a composite. The composite may be formed by various methods of mixing and molding. The invention is further directed to various composites made therefrom. The fibrous porous material is selected from the group comprising cellulose, lignin, synthetic ceramics, porous metal nanopowders, kaolin, bio fibers and porous powders of biological origin or their mixtures. The resin may be any polymer virgin or scrap obtained from industrial or domestic waste, and is selected from thermoplastic or thermosetting polymers.

L'invention concerne un matériau poreux en fibres traité présentant une nanostructure définie comprenant des sites réactifs situés sur cette structure, ledit matériau poreux en fibres étant traité à l'aide d'une solution organique de faible viscosité comprenant un solvant organique, une résine non saturée de composant de type isocyanate, et éventuellement des additifs complémentaires. Ledit matériau poreux en fibres traité est ensuite mélangé à une résine pour former un composite. Ledit composite peut être formé par des procédés variés de mélange et de moulage. L'invention concerne également des composites variés fabriqués par ces procédés. Ledit matériau poreux en fibres est sélectionné dans le groupe comprenant cellulose, lignine, céramique synthétique, nanopoudres métalliques poreuses, kaolin, biofibres et poudres poreuses d'origine biologique ou leurs mélanges. La résine peut être n'importe quel polymère vierge ou recyclé, obtenu à partir de déchets industriels ou domestiques, et est sélectionnée dans des polymères thermoplastiques ou thermodurcissables.

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