▎ 摘　　要

NOVELTY - Preparing graphene metal organic framework composite modified polypropylene melt-blown material comprises mixing the graphene and ethanol, cutting, dispersing the graphene in ethanol, adding silane coupling agent, controlling the temperature at 50-80 degrees C to react, filtering, washing and drying to obtain graphene with positive charge on the surface, (2) adding dodecyl benzene ring sodium in de-ionized water, stirring, adding graphene, stirring for 30-60 minutes at 50-60 degrees C, filtering, washing, drying to obtain the surface with negative charge of graphene B, (3) using salicylic acid to modify graphene A and graphene B, so as to improve the compatibility of graphene and resin and to protect layer on the graphene surface, (4) mixing the graphene A and graphene B modified by salicylic acid with polypropylene resin, where the mass of graphene A and graphene B are the same, using screw extruder to melt and blend and modify to prepare graphene/polypropylene master batch. USE - The method is useful for preparing graphene metal organic framework composite modified polypropylene melt-blown material. DETAILED DESCRIPTION - Preparing graphene metal organic framework composite modified polypropylene melt-blown material, comprising mixing the graphene and ethanol, cutting, dispersing the graphene in ethanol, adding silane coupling agent, controlling the temperature at 50-80 degrees C to react, filtering, washing and drying to obtain graphene with positive charge on the surface, (2) adding dodecyl benzene ring sodium in de-ionized water, stirring, adding graphene, stirring for 30-60 minutes at 50-60 degrees C, filtering, washing, drying to obtain the surface with negative charge of graphene B, (3) using salicylic acid to modify graphene A and graphene B, so as to improve the compatibility of graphene and resin and to protect layer on the graphene surface, (4) mixing the graphene A and graphene B modified by salicylic acid with polypropylene resin, where the mass of graphene A and graphene B are the same, using screw extruder to melt and blend and modify to prepare graphene/polypropylene master batch, (5) adding the obtained graphene/polypropylene master batch into the melt-blown fiber spinning machine; the spinning solution through the die head containing electric field, graphene towards the edge of the die head channel, and finally enriched on the edge of the spinning flow fiber, and the net curtain is melt-blown into net, forming graphene/polypropylene melts praying cloth, (6), post-processing the obtained graphene/polypropylene melt-blown cloth, loading metal organic frame material on the melt-blown cloth, preparing graphene/metal organic frame composite modified polypropylene melt-blown material.