Electrically conductive compositions and methods for...

H - Electricity – 01 – B

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H01B 1/24 (2006.01) C04B 35/52 (2006.01) C08L 23/04 (2006.01) C08L 23/10 (2006.01)

Patent

CA 2270980

An electrically conductive composition (10) and a method for producing same, for example by injection molding. The composition includes a matrix comprising substantially a first thermoplastic component (12), a second thermoplastic component (16) having a higher polarity than that of the first thermoplastic component, the second thermoplastic component encapsulating a plurality of fibers (14) forming a network of encapsulated fibers within the matrix, and a carbon component (18) preferentially attracted to the second component so as to make said network and electrically conductive network within the matrix.

Cette invention concerne une composition électro-conductrice (10), ainsi qu'un procédé de production de cette composition comme, par exemple, par moulage par injection. Cette composition comprend une matrice qui contient essentiellement un premier composant thermoplastique (12), ainsi qu'un second composant thermoplastique (16) possédant une polarité plus élevée que le premier. Le second composant thermoplastique sert à encapsuler plusieurs fibres (14) qui forment un réseau de fibres encapsulées dans la matrice. Cette matrice comprend en outre un composant carbone (18) qui est de préférence attiré par le second composant, ceci de manière à ce que le réseau susmentionné se transforme en réseau électro-conducteur à l'intérieur de ladite matrice.

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