▎ 摘 要
NOVELTY - Viscose fiber comprises 0.05 wt.% graphene and 1.0 wt.% viscose cellulose. USE - Viscose fiber. ADVANTAGE - The viscose fiber has improved breaking strength. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing viscose fiber, which involves: (A) hydrolyzing corn cob in an aqueous solution of an inorganic acid, to obtain lignocellulose; (B) heating the mixture at 70-180 degrees C preferably 100-120 degrees C; (C) adding an acid-sulfite or alkali-sulfite in the mixture, where alkali is selected from calcium hydroxide, sodium hydroxide, ammonium hydroxide or magnesium hydroxide, sufite is selected from calcium sulfite, magnesium sulfite, sodium sulfite or ammonium sulfite, chloride is selected from ferric chloride or ferrous chloride and catalyst is nickel chloride, nickel nitrate, nickel sulfate or nickel acetate; (D) processing the mixture at 50-150 degrees C; and (E) preserving the mixture.