▎ 摘　　要

NOVELTY - Producing graphene porous material for sound and noise reduction comprises taking graphene oxide powder in beaker, adding distilled water and ultrasonicating for 0.5-2 hours in the ultrasonic cell crushing instrument to obtain aqueous solution of graphene oxide, (ii) adding aqueous graphene oxide solution to the reaction kettle, heating at 150-250 degrees C for 12-36 hours and reacting, naturally cooling and drying at -50 degrees C to -15 degrees C for 3-5 days to obtain graphite alkene macroscopic body, sieving with 30-200 meshes to obtain graphene powder, vacuum degree less than 10 Pa, (iii) adding distilled water to graphene powder to prepare a dispersion, immersing the porous material in the dispersion for 10 minutes to 2 days, drying at low temperature to obtain a composite of graphene and porous material, hot pressing the composite of graphene and a porous material and packaging material at 80-150 degrees C for 80-150 minutes under 0.5-3.5 MPa, and naturally cooling to obtain a graphene porous material. USE - The graphene porous material for sound and noise reduction is useful for construction, transportation and aviation and spaceflight. ADVANTAGE - The material has high non-flammable properties. DETAILED DESCRIPTION - Producing grapheme for sound and noise reduction comprises taking graphene oxide powder in beaker, adding distilled water and ultrasonicating for 0.5-2 hours in the ultrasonic cell crushing instrument to obtain aqueous solution of graphene oxide, where the mass ratio of graphene oxide powder to distilled water is 1:50-500, oxidized graphite alkene powder mass of the unit is g, the unit of distilled water volume is ml, the working frequency of the ultrasonic cell crushing instrument is 20-25kHz,(ii) adding aqueous graphene oxide solution to the reaction kettle, heating at 150-250 degrees C for 12-36 hours and reacting for a certain time, naturally cooling and drying at -50 degrees C to -15 degrees C for 3-5 days to obtain graphite alkene macroscopic body, sieving with 30-200 meshes to obtain graphene powder, vacuum degree less than 10 Pa, (iii) adding distilled water to graphene powder to prepare a dispersion, immersing the porous material in the dispersion for 10 minutes to 2 days, drying at low temperature to obtain a composite of graphene and a porous material, where the mass ratio of graphene powder to the volume of the distilled water is 1-10:50, the porous material has a pore diameter of 100-5.5 mm and a bulk density of 8 to 60 kg/m3, the volume of the porous material is consistent with the volume of distilled water, hot pressing the composite of graphene and a porous material and packaging material at 80-150 degrees C for 80-150 minutes under 0.5-3.5 MPa, compounding, and naturally cooling to obtain a graphene porous material, where the thickness of the packaging material is 0.1-1 mm.