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.
Claims14
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 each of the carbon nanotubes has a length within a range of 0.1 to 10 μm, and the carbon nanotubes have a bent shape having a bent portion,
- the structure has a structure in which the plurality of carbon nanotubes are knitted like a non-woven fabric fiber, and
- a weight ratio that is a ratio of the weight of the carbon nanotubes adhered to the carbon fibers to the weight of the carbon fibers is within a range of 0.001 to 0.01, and a standard deviation of the weight ratio in a range of 1 m in a length of the carbon fibers is 0.0005 or less.
Dependencies are inferred from the claim text.