▎ 摘　　要

NOVELTY - Preparing graphene antibacterial film involves adding polyvinyl alcohol to distilled water and stirring uniformly to form stable dispersion. The tourmaline powder is added to distilled water, and polyvinylpyrrolidone is added and stirred to form suspension. The suspension is added to the dispersion, low-temperature ultrasonic dispersion for 10-20 minutes, and then performs vacuum distillation to form viscous slurry. The polyvinylpyrrolidone is dissolved in absolute ethanol for 20-40 minutes, performs low-temperature ultrasonic dispersion. The graphene is added and continued ultrasonication for 2-4 hours to obtain second viscous slurry after distillation under reduced pressure. The core-shell spinning device is used to perform high-voltage electrostatic spinning, viscous slurry is used as the core layer and the second viscous slurry as the shell layer to obtain fiber filaments which are woven into a fiber network structure. USE - Method for preparing graphene antibacterial film for fabric. DETAILED DESCRIPTION - Preparing graphene antibacterial film involves adding polyvinyl alcohol to distilled water and stirring uniformly to form stable dispersion. The tourmaline powder is added to distilled water, and polyvinylpyrrolidone is added and stirred to form suspension. The suspension is added to the dispersion, low-temperature ultrasonic dispersion for 10-20 minutes, and then performs vacuum distillation to form viscous slurry. The polyvinylpyrrolidone is dissolved in absolute ethanol for 20-40 minutes, performs low-temperature ultrasonic dispersion. The graphene is added and continued ultrasonication for 2-4 hours to obtain second viscous slurry after distillation under reduced pressure. The core-shell spinning device is used to perform high-voltage electrostatic spinning, viscous slurry is used as the core layer and the second viscous slurry as the shell layer to obtain fiber filaments which are woven into a fiber network structure, and preformed film is obtained after extrusion. The prefabricated film is soaked with absolute ethanol for 2-5 hours, taken out and washed with absolute ethanol, dried and sintered to obtain the antibacterial film.