▎ 摘　　要

NOVELTY - A continuous electrophoretic deposition modified carbon fiber reinforced multi-matrix composite material comprises 30-55 vol.% carbon fiber, 3-25 vol.% inorganic powder, and 20-67 vol.% substrate. When the inorganic powder is wrapped on the surface of the carbon fiber filament or embedded in the carbon fiber bundle, the concentration of the surface of the fiber bundle gradually decreases from the fiber filament to the fiber bundle. The inorganic powder is carbon powder, graphene powder, aluminum oxide powder, zirconium oxide powder, silicon oxide powder, silicon carbide powder, zirconium carbide powder, boron nitride powder, and/or silicon nitride powder. The particle size of the inorganic powder is 20-1000 nm. The substrate is carbon, silicon, aluminum alloy, copper alloy, nickel alloy, ceramic and/or organic resin. USE - Continuous electrophoretic deposition modified carbon fiber reinforced multi-matrix composite material. ADVANTAGE - The continuous electrophoretic deposition modified carbon fiber reinforced multi-matrix composite material ensures uniform deposition of inorganic powder on the surface of the carbon fiber by expanding the carbon fiber, and has improved deposition efficiency, and excellent multifunctional characteristics, performance characteristics, and stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the continuous electrophoretic deposition modified carbon fiber reinforced multi-matrix composite material, which involves: (1) performing glue removal treatment on carbon fiber, and performing plasma surface treatment; (2) taking deionized water as a solvent and the inorganic powder as a solid phase in a sedimentation tank, adding dispersant to prepare an inorganic powder slurry, adjusting Zeta potential of the slurry according to the addition of an acid and an alkali to the inorganic powder, and then introducing a layer of organic release agent into a deposition tank; (3) expanding the pretreated carbon fiber bundle to form a carbon fiber belt whose width is 10-1000 mm by ultrasonic fiber expansion method, then drawing the carbon fiber belt into the deposition tank through a sliding roller on one side of the deposition tank, passing a horizontal roller through the deposition tank parallel to the bottom of the tank, pulling out the deposition tank by the sliding roller, placing a metal plate on top and bottom parallel to the fiber belt, applying direct current to the roller and the metal plate having same potential, and connecting a slide rail and the metal plate to opposite electrodes; (4) placing the carbon fiber belt deposited with inorganic powder on a mold to form a preform, drying and curing, or paving the carbon fiber belt deposited with inorganic powder to form a preform, drying and curing, or condensing the carbon fiber tape deposited with inorganic powder, wrapping bundled carbon fiber using a flexible protective sleeve, weaving to form a preform, and then drying and curing; (5) densifying the dried and cured preform using chemical vapor deposition or precursor immersion cracking method to obtain a continuous electrophoretic deposition modified carbon fiber reinforced multi-matrix composite material; (6) infiltrating the alloy into dried and cured preform or hybrid composite material by vacuum pressure melt infiltration method to obtain a continuous electrophoretic deposition modified carbon fiber reinforced multi-matrix composite material; and (7) infiltrating an organic polymer resin into the dried and cured preform or the hybrid composite material using resin transfer molding compound method.