METHOD FOR MANUFACTURING ACTIVATED CARBON FIBER AND ACTIVATED CARBON FIBER MANUFACTURED BY THE SAME

摘要

The present invention relates to a method for manufacturing an activated carbon fiber and an activated carbon fiber manufactured by the same. The manufacturing method comprise the steps of: heat-treating a PAN fiber in air in 250-300 C and stabilizing; depositing the stabilized fiber in an aqueous KOH solution; drying the stabilized fiber; supplying nitrogen to a vessel containing an MDEA solution, and high-temperature heat-treating in nitrogen and MDEA vapor; and after cooling to room temperature after the heat-treatment is finished, cleaning the heat-treated carbon fiber with distilled water and drying. [Reference numerals] (S100) Heat-treating a PAN fiber in air in 250-300째C and stabilizing; (S110) Depositing the stabilized fiber in an aqueous KOH solution; (S120) Drying the stabilized fiber in which is filtered; (S130) Heat-treating the stabilized fiber in a nitrogen/MDEA atmosphere at 750-850째C; (S140) Cleaning and drying a carbon fiber after cooling the same to room temperature