▎ 摘　　要

NOVELTY - Preparing renewable antibacterial effect degradable nanofiber mask filter core, comprises dissolving 5,5-dimethylhydantoin and sodium hydroxide in acetone, dissolving hydantoin sodium salt in N,N-dimethylformamide, reacting with epichlorohydrin, reacting with graphene in mixed solvent, separating and purifying, dissolving in mixed solvent (II) electrospinning with polylactic acid mixed spinning solution prepared by reacting tetrabutylammonium chloride with polylactic acid to obtain graphene oxide-halamine composite antibacterial nanofiber membrane, and electrospinning polylactic acid ultra-diluted spinning solution prepared by reacting tetrabutylammonium chloride with polylactic acid in mixed solvent (II) to obtain substrate, combining substrate and graphene oxide-halamine composite antibacterial agent nanofiber membrane and performing ultrasonic compounding to obtain final product. USE - The method is useful for preparing renewable antibacterial effect degradable nanofiber mask filter core. ADVANTAGE - The method: solves the technical problems that traditional masks are difficult to degrade, non-renewable antibacterial properties, poor filterability and not durable; and ensures the degradable nanofiber mask filter core with biodegradability, regenerable antibacterial performance, excellent filtration performance and long-lasting stability.