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US 2023/0416474 A1Published application
Rotary member and method for manufacturing same
AssigneeNitta Corporation
InventorsTakuji Komukai, Maki Onizuka
Life of this patent
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Abstract
A rotary member rotatable along a circumferential direction includes: carbon fibers wound in the circumferential direction; a matrix resin in which the carbon fibers are embedded; and a structure which includes a plurality of carbon nanotubes having a bent shape with a bent portion, forms a network structure including a contact portion where the carbon nanotubes are in direct contact with each other, and is provided on surfaces of the carbon fibers.
Claims8
A rotary member rotatable along a circumferential direction, the rotary member comprising:
- carbon fibers wound in the circumferential direction;
- a matrix resin in which the carbon fibers are embedded;
- and
- a structure which includes a plurality of carbon nanotubes having a bent shape with a bent portion, forms a network structure including a contact portion where the carbon nanotubes are in direct contact with each other, and is provided on surfaces of the carbon fibers.
1 more element
A method for manufacturing a rotary member, comprising:
- a structure forming process of immersing carbon fibers in a dispersion in which carbon nanotubes having a bent shape with a bent portion are dispersed and to which ultrasonic vibration is applied to adhere the carbon nanotubes to the carbon fibers, thereby forming a structure having a network structure including a contact portion where the carbon nanotubes are in direct contact with each other on surfaces of the carbon fibers;
- and
- a molding process of applying a matrix resin to the carbon fibers in which the structure is formed, winding the carbon fibers applied with the matrix resin around a mandrel, curing the matrix resin, and pulling out the mandrel.
Dependencies are inferred from the claim text.