▎ 摘　　要

NOVELTY - Anti-UV polyacrylonitrile (PAN)/graphene oxide (GO) coaxial nano-fiber comprises a core layer spinning liquid includes PAN and solvent dimethylformamide (DMF), and shell layer spinning liquid includes graphene oxide (GO) and solvent DMF, where the mass ratio of PAN and GO in PAN/GO is 1-3:0.002-0.02. USE - Used as anti-UV polyacrylonitrile/graphene oxide coaxial nano-fiber. ADVANTAGE - The coaxial nano-fiber can effectively shield UV-A and UV-B wave band of UV radiation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing coaxial nano-fiber, comprising (i) drying PAN powder, filtering, to obtain PAN powder; (ii) dissolving graphene oxide in DMF, to obtain shell layer spinning liquid, where the ratio of graphene oxide and DMF is 0.5-5 mg:5 ml; (iii) adding PAN powder with DMF, stirring at 25-37 degrees C under extrusion for 6-12 hours, and dissolving to obtain core layer spinning liquid, where the PAN powder and DMF ratio is 0.5-1.5 g:10 ml; (iv) injecting step (ii) product and step (iii) product using an injector, carrying out spinning process using an electrostatic spinning device connected with a coaxial spinning head place, collecting and drying, to obtain the final product.