Sheet-like article and method for making the same

Abstract

A sheet-like article including fibers and carbon nanotubes and/or carbon nanohorns adhering to the surface of the fibers in a uniformly dispersed state without agglomeration to form a network structure on the fibers. The sheet-like article is preferably made by converting the fibers and a dispersion of the carbon nanotubes and/or carbon nanohorns by a wet papermaking process. To use cellulose fibers as main fibers provides a good sheet-like article.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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AI Technical Summary

Benefits of technology

The invention relates to a sheet-like article that can be used as an ultrafine filter or a catalyst carrier. The article contains main fibers, such as cellulose fibers, which can be either natural or synthetic. These fibers can be used alone or in combination with other fibers like bamboo or carbon fibers. The article also contains carbon nanotubes (CNTs) or carbon nanohybrids (CNHs) which form a network structure on the surface of the fibers. The CNTs or CNHs are fixed onto the fibers and form a dense and uniform network structure. The article can be made using a wet papermaking process with the addition of various additives such as strength agents, polymers, and fixing agents. The ultrafine voids formed by the CNTs or CNHs make the article useful as an ultrafine filter or a catalyst carrier.

Problems solved by technology

The technical problem addressed in this patent text is the difficulty of forming a sheet material containing carbon nanotubes or carbon nanohorns that exhibits effective electrical characteristics suitable for various uses such as electrically conductive material, electromagnetic shielding, and microwave heating element. Existing methods have failed to achieve a satisfactory network of carbon fibers or a sufficient amount of carbon fibers in the sheet, resulting in reduced performance characteristics. In addition, some methods have resulted in the formation of agglomerates or failed to sufficiently cover the cellulose fibers with carbon fibers.

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