Surface modification method for treating and coating nanometer graphene by carbon fiber plasmas

Abstract

The invention relates to a surface modification method for treating and coating nanometer graphene by carbon fiber plasmas. Graphene is used as a surface coating material of carbon fiber; the carbon fiber surface is coated with nanometer graphene sol liquid; then, a composite material with high performance can be formed through plasma surface modification. The cost is low; the operation is simple; the applicability is high. The method has the advantages that the investment cost of equipment used by the carbon fiber surface modification is low; the invention cost is low; the operation is simple; the applicability is high; the treatment effect is good; the fiber performance loss is little; the quality is reliable; the modification time is greatly shortened; the chemical consumption and the product cost are reduced; the environment pollution is reduced; the method is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of carbon fiber surface modification, in particular to a method for surface modification of carbon fiber plasma treatment coated nano-graphene. Background technique [0002] Carbon fiber refers to a fiber material that has been carbonized at a high temperature and contains more than 85% carbon, including carbon fiber and graphite fiber. Carbon fiber is a fiber with a carbon content of 85% to 95% after the organic fiber is treated at 1000-2300°C; graphite fiber is a fiber with a carbon content of more than 98% after the organic fiber is treated at 2300°C. A high-performance fiber, because of its high specific strength, high specific modulus, small thermal expansion coefficient, low friction coefficient, and good low temperature resistance, it has become the most important reinforcing material for resin-based composite materials in recent years, and is widely used in aerospace. Components and sporting goods. ...

AI Technical Summary

Problems solved by technology

[0005] Graphene is a material with the best strength of known materials, excellent electrical conductivity and thermal conductivity, and the single-layer graphene after chemical functionalization has good solubility in water and organic solvents, which is conducive to its uniform dispersion And molding processing, the current existing patents on plasma treatment of carbon fiber surface modification technology do not involve the method of surface modification of carbon fiber coated with nano-graphene sol and then plasma technology