Electricity and heat conductive composite

Details Electricity and heat conductive composite Electricity and heat conductive composite

H - Electricity

01

B

H01B 1/24 (2006.01) C08K 3/00 (2006.01) C08K 3/04 (2006.01) C08L 67/00 (2006.01)

Patent

CA 2584848

This invention relates to use of a specific class of carbon structures in non- conductive materials in order to enhance the electrical- and/or the thermal conductivity of the materials. This invention is based on the discovery that a class of micro-domain carbon particles known as carbon cones and disks are excellent conductive filler in plastics with a critical loading level of approximately 1 weight%, which is comparable with the performance of carbon nanotubes. But, these carbon structures may be produced in industrial scale at the same cost as carbon black. Thus it is possible to provide thermal- and electric conducting composite materials with almost the same density and mechanical properties as the pure matrix material at the favourable cost of carbon black as filler.

La présente invention porte sur une utilisation d~une classe spécifique de structures de carbone dans des matériaux non conducteurs pour renforcer la conductivité électrique et/ou thermique des matériaux. La présente invention repose sur la découverte qu~une classe de particules de carbone de micro-domaine connues comme cônes et disques de carbone sont d~excellentes matières de remplissage conductrices dans les plastiques avec un niveau de charge critique d~environ 1 % en poids, comparable aux performances de nanotubes de carbone. Mais ces structures de carbone peuvent s~obtenir à échelle industrielle au même coût que le noir de carbone. Il est donc possible d~obtenir des matériaux composites conducteurs thermiquement et électriquement avec pratiquement la même densité et les mêmes propriétés mécaniques que la matière matricielle pure au coût favorable du noir de carbone comme matière du remplissage.

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