▎ 摘　　要

NOVELTY - Preparing carbon fiber with a multi-component biomimetic hierarchical structure comprises e.g. adding the modified graphene oxide and carbon nanotubes into deionized water respectively and performing ultrasonic treatment to obtain a uniform dispersion of graphene oxide and carbon nanotubes, desizing the carbon fiber, immersing the desizing carbon fiber in a polyethyleneimine aqueous solution, and vacuum-dry to obtain amine-activated carbon fiber, adding the amine-activated carbon fiber into the uniformly dispersed graphene oxide, soaking and drying, adding the graphene oxide-treated carbon fiber into a polyetheramine aqueous solution, adding the polyetheramine-treated carbon fiber to the carbon nanotube dispersion, adding the carbon fiber with multi-component bionic hierarchical structure assembled into the polyetheramine aqueous solution again for soaking treatment, and vacuum-drying. USE - The carbon fiber is useful in carbon fiber epoxy resin composite material (claimed). ADVANTAGE - The multi-component bionic hierarchical structure carbon fiber has a fish scale hierarchical structure. The multi-component bionic hierarchical structure carbon fiber epoxy resin composite material has higher thermal conductivity and mechanical strength. DETAILED DESCRIPTION - Preparing carbon fiber with a multi-component biomimetic hierarchical structure comprises (a) modifying graphene oxide and carboxylated carbon nanotubes respectively to obtain modified graphene oxide and carbon nanotubes, (b) adding the modified graphene oxide and carbon nanotubes into deionized water respectively and performing ultrasonic treatment to obtain a uniform dispersion of graphene oxide and carbon nanotubes, (c) desizing the carbon fiber to obtain desized carbon fiber, (d) immersing the desizing carbon fiber in a polyethyleneimine aqueous solution, and vacuum-dry to obtain amine-activated carbon fiber, (e) adding the amine-activated carbon fiber into the uniformly dispersed graphene oxide, soaking and drying in vacuum to obtain carbon fiber treated with graphene oxide, (f) adding the graphene oxide-treated carbon fiber into a polyetheramine aqueous solution for soaking treatment, and vacuum drying to obtain polyetheramine-treated carbon fiber, (g) adding the polyetheramine-treated carbon fiber to the uniformly dispersed carbon nanotube dispersion, soaking and vacuum drying, obtaining a carbon fiber with a multi-component biomimetic hierarchical structure assembled once, (h) adding the carbon fiber with the multi-component bionic hierarchical structure assembled into the polyetheramine aqueous solution again for soaking treatment, and vacuum-drying to obtain the polyetheramine treated carbon fiber, and (i) repeating steps (e) to (h) for multiple times. An INDEPENDENT CLAIM is also included for carbon fiber epoxy resin composite material with a multi-component biomimetic hierarchical structure, comprising the multi-component bionic hierarchical structure carbon fiber.