The invention discloses a
processing technology of
modified carbon fibers. The
processing technology comprises the following steps of a, filament return and thread collection, wherein a protofilamentis selected, after splitting, a new filament and an old filament are connected with a heat-resistant
fiber, and the mixture is erected on a thread collection plate; b, primary
drying, wherein the thread collection plate and the protofilament are conveyed into a
drying device for
drying, and the
moisture in the protofilament is removed; c, preoxidation; d,
carbonization; e, electrolytic oxidation modification; f, soaking modification. The
processing technology has the advantages that an electrolytic oxidation mode is adopted for modifying the surfaces of the
carbon fibers, active functional groups are introduced into the surfaces of the
carbon fibers, the carbon
oxygen bonds of the surfaces of the
carbon fibers are increased, the contact compactness of the carbon fibers and the surface of acomposite material in the compounding process is improved, and the increase and decrease shearing strength of the synthesized
composite material is improved; the
interface bonding force of a bondingface is improved, and accordingly the tensile strength and
impact-resistance strength of the carbon
fiber and resin base material
composite material is improved.