| abstract |
The present invention relates to a polymer base; And a carbon fiber provided in the polymer matrix, wherein the surface of the carbon fiber is coated with a carbon nanotube / graphene oxide hybrid. The carbon fiber composite material according to the present invention is a carbon fiber composite material comprising carbon fibers prepared by preparing a composite material with graphene grains without changing the structure or physical properties of carbon nanotubes and coating the same with carbon nanotubes, . In addition, since the tubular structure of the carbon nanotubes coated on the carbon fiber has a reinforcement effect on the Z axis unlike the case where only the oxide graphene is coated on the carbon fiber, the effect of preventing the cracks of the carbon fiber composite material have. |