Composite material, prepreg, carbon fiber reinforced molded product, and method for producing composite material
AssigneeNitta Corporation
InventorsTakuji KOMUKAI, Maki ONIZUKA, Hiromi TERUHIRA
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Abstract
Provided are a composite material capable of further enhancing property derived from carbon nanotubes adhered to carbon fibers, a prepreg, a carbon-fiber-reinforced molded article, and a method for manufacturing a composite material. There is provided a composite material including: carbon fibers; and a structure which includes a plurality of carbon nanotubes and has a network structure in which the carbon nanotubes are in direct contact with each other, and in which the carbon nanotubes adhered to surfaces of the carbon fibers directly adhere to the surfaces of the carbon fibers. The carbon nanotubes have a bent shape having a bent portion.
Claims18
A composite material comprising:
- carbon fibers;
- and
- a structure which includes by a plurality of carbon nanotubes and has a network structure in which the carbon nanotubes are in direct contact with each other, and in which the carbon nanotubes adhered to surfaces of the carbon fibers directly adhere to the surfaces of the carbon fibers,
- wherein the carbon nanotubes have a bent shape having a bent portion.
A method for manufacturing a composite material, comprising:
- applying ultrasonic vibration to a dispersion in which a plurality of carbon nanotubes in a bent shape having a bent portion are dispersed;
- and
- immersing a carbon fiber bundle including a plurality of continuous carbon fibers while opening in the dispersion to which the ultrasonic vibration is applied, causing the plurality of carbon nanotubes to adhere to the carbon fibers to form a structure on a surface of each of the carbon fibers.
Dependencies are inferred from the claim text.