▎ 摘　　要

NOVELTY - Grapheme quantum dot/polymer antibacterial antiviral composite fiber comprises a mixture of graphene quantum dots and a polymer prepared by using polymer master batches for melting and a filler is certain amount of the mixture and polymer master batches and the mixture is prepared by melt spinning. USE - Used as grapheme quantum dot/polymer antibacterial antiviral composite fiber. ADVANTAGE - The fiber: has excellent antibacterial and antibacterial performance, good mechanical properties and environmentally-friendly, silky and smooth hand feeling, plump and waxy cashmere, fluffy, good resilience, comfortable feeling and good wearing performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing grapheme quantum dot/polymer antibacterial antiviral composite fiber comprising taking 10-30 ml concentrated sulfuric acid and 50-70 ml concentrated nitric acid, mixing them uniformly, taking 80-120 mg graphene strong acid mixed solution, processing for 12-18 hours, finishing the ultrasonic treatment, centrifuging and washing the mixed solution to neutral at a rate of 7000 revolutions/minutes, (2) dispersing the sample centrifuging and washing again in 50-70 ml distilled water, using sodium hydroxide solution to adjust the pH to 8 and ultrasonically processing for 1-3 hours, moving the sample into the reaction kettle, processing at 200℃ for 10 hours, after cooling the sample to room temperature, using 0.22 μm filter film to filter and dialyzing the filtrate for 1-3 days, (3) obtaining solid sample by rotary evaporation after filtrate dialysis, carrying out heat treatment to sample to remove residual oxygen-containing functional group to obtain the final graphene quantum dot, (4) drying the polymer master batch in a vacuum oven at 60-100℃ for 6-10 hours, (5) carrying out graphene quantum dot and polymer master batch based on mass fraction of 1: 10-20 proportion, (6) using organic solvent as solvent, adding the polymer master batch into the solvent, oil bath heating to 110-150℃, adding graphene quantum dot, dispersing for 0.5-1.5 hours by ultrasonic device, stirring until completely dissolved, (7) transferring the solution obtained to the excessive alcohol while hot, extracting of the organic solvent in the solution, filtering to obtain the quantum graphene/polymer and mixture containing part of the organic solvent, (8) drying the mixture obtained at 60-100℃ for 36-60 hours in the vacuum drying box, removing the organic solvent, crushing the mixture into subsequent melt spinning preparation, after drying, (9) taking in the step (7) gained mixture and polymer master batch carry out different proportioning and final spinning solution is 0.1-1% with the solid content of graphene quantum dot, placing into vacuum drying box for drying at the temperature of 60-100℃ for 6-10 hours, preparing for spinning and using the double -screw extruder and winding machine as the equipment for spinning, adding the mixture to the extruder, changing the twin-screw extruder to the mixing gear before spinning and mixing the blended in the extruder at a speed of 30-40 revolutions/minute for 5-10 minutes, changing the gear to the extrusion gear, adding fillers, adjusting the speed to 10-20 revolutions/minute and start spinning and setting the heating temperature at 180-200℃ in the first zone, 200-220℃ in the second zone and 180-220℃ in the third zone and the winding speed is 80-120 m/minutes.