Method for covalently connecting graphene to surface of carbon fiber and application

Abstract

The invention discloses a method for covalently connecting graphene to the surface of carbon fiber and application, and belongs to the technical field of carbon fiber modification. The invention aims to solve the problems that the carbon fiber modification method has high requirements on equipment, high energy consumption and long period, or the surface of the carbon fiber is easy to oxidize in the modification process, so that the mechanical property of the carbon fiber is obviously reduced, or the carbon fiber modification method is not suitable for large-scale production. Carbon fiber or carbon fiber coated with organic matter on the surface is taken and mixed with a carbon source and a reducing agent to be uniform, combustion synthesis reaction is conducted, and then acid pickling purification is conducted. The method is used for producing a resin-based composite material, a metal-based composite material, a ceramic-based composite material, a carbon-based composite material and the like, and has a wide application prospect.

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