▎ 摘　　要

NOVELTY - The method involves smoothing the stainless steel fibers, then the surface organics are ultrasonically removed in methanol and acetone, respectively, rinse with ultrapure water, and dry under nitrogen. The ends of the stainless steel fibers are etched in an electrochemical etching system. The etched end is soaked in NaOH solution, rinse with ultrapure water and dry in an oven, after etching, wash with ultrapure water and dry in an oven. The pretreated stainless steel fibers are immersed in the coupling agent/MeOH mixed solution, and then oven-dried to obtain amino-functionalized SSF, namely SSF-NH2. The SSF-NH2 is immersed in the graphene oxide dispersion, and then dry it at room temperature. The graphene oxide-coated fibers are deoxidized in a mixed solution of ultrapure water, hydrazine hydrate and ammonium hydroxide to obtain graphene-coated SSF, namely SSF-GF. USE - Method for preparing graphene-coated stainless steel array microporous fiber (claimed). ADVANTAGE - The four-electrode metal etching device is adopted to generate dense array micropores on the surface of the stainless steel fiber, more anchor points for the reaction is provided, so that the coating material is chemically bonded in the micropore, the durability of the coating is improved, the friction loss is reduced, and the stability of the chemical bond is used to enhance the stability of the graphene coating using the method of chemical bonding. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of electrochemical etching system.