Composite comprising structural and non structural fibers

Details Composite comprising structural and non structural fibers Composite comprising structural and non structural fibers

B - Operations, Transporting

32

B

B32B 5/28 (2006.01) B29C 70/08 (2006.01) B29C 70/12 (2006.01) B32B 5/08 (2006.01) B32B 17/04 (2006.01)

Patent

CA 2366584

A composite comprises a structural component and a resin component, the structural component comprising structural fibres and a toughening additive comprising non-structural thermoplastic fibres and the resin component comprising a non-thermo-plastic material. The structure component is a preform formed from the structural fibres and the thermoplastic fibres. The volume fraction of the structural fibres in the preform is at least 65 %. The composite may be produced by forming a preform from structural fibres with non-structural thermoplastic fibres to provide a structural component. Liquid resin is then injected or infused into the structural component and cured.

Ce composite comprend un composant structurel et un composant résine, le composant structurel comprenant des fibres structurelles ainsi qu'un additif de durcissement comportant des fibres thermoplastiques non structurelles, et le composant résine comprenant un matériau non thermoplastique. Le composant structurel se compose d'une préforme que l'on forme à partir des fibres structurelles et des fibres thermoplastiques. Le pourcentage de volume des fibres structurelles présentes dans la préforme est d'au moins 65 %. On peut produire ce composite en formant une préforme à partir de fibres structurelles comprenant des fibres thermoplastiques non structurelles, afin d'obtenir un composant structurel, puis on injecte ou on infuse de la résine liquide dans le composant structurel et on la laisse durcir.

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