▎ 摘　　要

NOVELTY - Core-shell structure shielding material comprises core layer and shell layer coaxially arranged outside the core layer, where the core layer utilizes polyvinyl alcohol as matrix, and carbon-based fillers as electromagnetic shielding functional fillers, the shell layer utilizes polyacrylonitrile as matrix and heavy metals as ionization shielding functional fillers, the core-shell structure shielding material is prepared by electrospinning by coaxial spinning, the heavy metal is tungsten, tungsten(VI) oxide, bismuth(III) oxide or gadolinium(III) oxide, and the carbon-based filler is multiwalled carbon nanotubes or graphene oxide. USE - Used as core-shell structure shielding material. ADVANTAGE - The core-shell structure shielding material: is made by coaxial spinning technology, which makes the internal fiber distribution of the shielding material uniform, and avoids the decrease of the screen performance caused by the uneven distribution of the internal fiber of the shielding material, and thus it has relatively high electromagnetic shielding function and ionization shielding function. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of core-shell structure shielding material. The method utilizes N,N-dimethylformamide solution to prepare shell spinning solution.