Sheet-like article and method for producing the same

Abstract

Disclosed is a sheet-like article containing fibers to the surfaces of which carbon nanotubes and / or carbon nanohorns are adhered. Since many carbon nanotubes and / or carbon nanohorns are adhered to the fiber surfaces in a uniformly dispersed state without agglomerating together, the carbon nanotubes and / or carbon nanohorns form a network structure on the fibers. The sheet-like article is preferably obtained by wet-papermaking the fibers and a liquid dispersion of the carbon nanotubes and / or carbon nanohorns. By using fibers mainly containing cellulose fibers, there can be obtained a preferable sheet-like article.

Description

technical field [0001] The present invention relates to a sheet-like object formed by fibers with carbon nanotubes and / or carbon nanohorns attached to the surface and a manufacturing method thereof. The sheet-like object can be used for conductive materials, electromagnetic wave shields, and electromagnetic wave absorbers , microwave absorbing exothermic body, electrode, ultrafilter, planar exothermic body, catalyst carrier, etc. Background technique [0002] Carbon nanotubes or carbon nanohorns have extremely low electrical conductivity characteristics based on their special structure. They are used as conductive materials, electromagnetic wave shields, electromagnetic wave absorbers, microwave absorbers, electrodes, ultrafilters, Materials such as planar heat sinks have attracted attention. Therefore, several flakes containing carbon nanotubes or carbon nanohorns have also been investigated. [0003] For example, in Patent Document 1, it is proposed to use carbon fiber a...

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Problems solved by technology

However, in the immobilization method proposed here, since aggregates of the carbon nanotubes themselves are generated at the time of preparation of the liquid slurry, the network of the carbon nanotubes cannot be formed satisfactorily in the sheet.

Therefore, since it is difficult to give full play to the conductivity of carbon nanotubes, and in order to reduce the conductivity of the flakes, a large amount of carbon nanotubes must be added

[0009] As described above, it is difficult to form sheets containing carbon nanotubes and / or carbon nanohorns having extremely effective electrical properties, such as conductive materials, electromagnetic wave shields, microwave absorbing and exothermic bodies, or electrodes, using conventional techniques.

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