Composite component, especially a composite cladding...

Details Composite component, especially a composite cladding... Composite component, especially a composite cladding...

B - Operations, Transporting

29

C

B29C 70/08 (2006.01) B29B 17/00 (2006.01) B32B 5/02 (2006.01) D04H 1/42 (2006.01)

Patent

CA 2234252

In the composite component of the invention, the reinforcing material consists wholly or partly of recycled natural fibres, especially jute or sisal fibres, produced from fabrics used as packaging materials. Said recycled fibres may be mixed with between 10 and 30 % of other fibrous materials or fillers. The natural fibre material used for reinforcement may be non-directional, randomly structured, directional, moulded or pre-shaped. Combinations thereof are also possible by layering the reinforcement insert. The binders used are thermoplastic synthetic raw materials or duroplasts or a combination of duroplasts and thermoplasts or a biological agent. According to the invention, the raw material is crushed to form pieces of pourable consistency which are broken down into fibres in a mill.

L'invention concerne un constituant composite dans lequel le matériau de renforcement se compose en totalité ou en partie de fibres naturelles recyclées, notamment de fibres de jute ou de sisal, constituées de tissus utilisés comme matériaux d'emballage. Entre 10 à 30 % d'autres matériaux fibreux ou de charges peuvent être mélangés à ces fibres de recyclage. Le matériau à base de fibres naturelles utilisé comme élément de renforcement est introduit de manière non dirigée, aléatoire, dirigée, moulée ou prémoulée. Il est également possible d'effectuer des combinaisons par stratification de l'élément de renforcement. On utilise comme liant des matières brutes synthétiques thermoplastiques ou des matières thermodurcissables ou une combinaison de matières thermodurcissables et de matières thermoplastiques ou un principe actif biologique. Selon l'invention, le matériau de départ est fractionné en morceaux de consistance coulante qui sont effilochés dans un broyeur.

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