Carbon fibrous structure

D - Textiles – Paper – 01 – F

Patent

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D01F 9/127 (2006.01) B82B 1/00 (2006.01)

Patent

CA 2576733

A carbon fiber structure of three-dimensional network composed of carbon fibers of 15 to 100 nm outer diameter, characterized in that the carbon fiber structure in a form having multiple carbon fibers extending outward, has granular parts where carbon fibers are bound to each other, the granular parts formed during the step of carbon fiber growth, the granular parts having a size of >= 1.3 times the outer diameter of carbon fibers. This carbon fiber structure by addition of a small amount thereof enables enhancing of electrical properties, mechanical properties and thermal or other physical properties without detriment to the properties of the matrix.

L~invention concerne une structure en fibres de carbone, d'un réseau tridimensionnel, composée de fibres de carbone de 15 à 100 nm de diamètre extérieur, structure en fibre de carbone caractérisée du fait qu~elle se présente sous une forme ayant de multiples fibres de carbone s'étendant vers l'extérieur, qu~elle a des parties granulaires où les fibres de carbone sont liées les unes aux autres, les parties granulaires étant formées au cours de l~étape de croissance des fibres de carbone, les parties granulaires ayant une taille >= 1,3 fois le diamètre extérieur des fibres de carbone. Cette structure en fibres de carbone, ajoutée en petites quantités, permet d~améliorer les propriétés électriques, les propriétés mécaniques et les propriétés thermiques ou autres propriétés physiques sans nuire aux propriétés de la matrice.

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