Method of processing a composite material

Details Method of processing a composite material Method of processing a composite material

B - Operations, Transporting

29

C

B29C 70/44 (2006.01) B29B 15/10 (2006.01) B29C 70/08 (2006.01)

Patent

CA 2675801

A method of processing a composite material comprising heating a porous layer (3) in contact withthe composite material (1) above its melting point whereby it melts and becomes incorporated into the composite material. The material may be formed by a matrix diffusion process. In this case the porous layer acts as a distribution layer. Alternatively the material may be formed as a stack of prepregs. In this case the porous layer acts as a breather layer. The porous layer may comprise a polysulphone or polyethersulphone which increases the toughness of the material.

L'invention concerne un procédé de traitement d'un matériau composite comprenant le chauffage d'une couche poreuse (3) en contact avec le matériau composite (1) au-dessus de son point de fusion, ce par quoi elle fond et s'incorpore au matériau composite. Le matériau peut être formé par un procédé de diffusion de matrice. Dans ce cas, la couche poreuse sert de couche de distribution. En variante, le matériau peut être formé en tant que pile de préimprégnés. Dans ce cas, la couche poreuse sert de couche respirante. La couche poreuse peut comprendre un polysulfone ou un polyéthersulfone qui augmente la ténacité du matériau.

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