▎ 摘　　要

NOVELTY - Preparing a graphene oxide antibacterial modified high-strength melt blown non-woven filter cloth comprises (i) adding 4,4' methylenebis(phenyl isocyanate) and 2-Amino-4-hydroxy-6-methylpyrimidine into a three-necked flask, filling with nitrogen, heating for reflux reaction, carrying out precipitate washing, refluxing extraction and vacuum drying to obtain isocyanato ureidopyrimidinone, (ii) adding graphene oxide to N,N-dimethylformamide solvent, ultrasonically treating, adding isocyanato-ureidopyrimidinone, then ultrasonically treating, then adding dibutyltin dilaurate, carrying out heat preservation for reaction, washing with acetone, performing centrifugal separation and vacuum drying to obtain ureidopyrimidinone grafted graphene, (iii) adding diethylzinc, triethylaluminum, titanium tetrachloride, magnesium chloride to toluene solvent in turn, passing in propylene gas, heating polymerization reaction and then drying the oxygen through the way to perform the oxidation reaction. USE - The method is useful for preparing a graphene oxide antibacterial modified high-strength melt blown non-woven filter cloth. ADVANTAGE - The cloth: has excellent ventilation and filtering performance; inhibits the occurrence of agglomeration of graphene oxide; and improves the mechanical property. DETAILED DESCRIPTION - Preparing a graphene oxide antibacterial modified high-strength melt blown non-woven filter cloth comprising (i) adding 4,4' methylenebis(phenyl isocyanate) and 2-Amino-4-hydroxy-6-methylpyrimidine into a three-necked flask, filling with nitrogen, heating for reflux reaction, carrying out precipitate washing, refluxing extraction and vacuum drying to obtain isocyanato ureidopyrimidinone, (ii) adding graphene oxide to N,N-dimethylformamide solvent, ultrasonically treating for 20-30 minutes, adding isocyanato-ureidopyrimidinone, then ultrasonically treating for 20-30 minutes, then adding dibutyltin dilaurate, carrying out heat preservation for reaction, washing with acetone, performing centrifugal separation and vacuum drying to obtain ureidopyrimidinone grafted graphene, (iii) adding diethylzinc, triethylaluminum, titanium tetrachloride, magnesium chloride to the toluene solvent in turn, then passing in propylene gas, heating the polymerization reaction and then drying the oxygen through the way to perform the oxidation reaction and then adding hydrochloric acid to quenching the reaction and separating the liquid, distilling, washing and vacuum drying to obtain hydroxy-terminated polypropylene, (iv) adding hydroxy-terminated polypropylene to the toluene solvent, adding isocyanate ureidopyrimidinone, ultrasonically dispersing, then adding dibutyltin dilaurate, heating to reacting, evaporating the solvent, washing with absolute ethanol and deionized water and drying in vacuum to obtain ureidopyrimidinone grafted polypropylene, and (v) heating and melting the ureidopyrimidinone grafted polypropylene, adding ureidopyrimidinone grafted graphene, stirring, mixing and ultrasonically treating and then adding to the melt blown spinning machine for melt blown spinning process