▎ 摘　　要

NOVELTY - Preparation of modified carbon nanotube/graphene-resin conductive fiber, involves adding acidified carbon nanotubes to ultrasonically treated graphene solution to obtain carbon nanotube/graphene composite spinning solution, subjecting spinning solution to wet spinning, and drying to obtain a carbon nanotube/graphene-resin conductive fiber, subjecting carbon nanotube/graphene-resin conductive fiber in stretched condition to cryogenic treatment, maintaining in room temperature for a period of time to obtain modified carbon nanotube/graphene-resin conductive fibers. USE - Preparation of modified carbon nanotube/graphene-resin conductive fiber for use in electronic textile, electromagnetic shielding and smart wearable component field. ADVANTAGE - The cryogenic treatment device is featured with simple structure, improved energy-saving effect, reduced production cost and good development prospects. DETAILED DESCRIPTION - Preparation of modified carbon nanotube/graphene-resin conductive fiber, involves dissolving graphene in a solvent to obtain a graphene solution, subjecting the graphene solution to ultrasound treatment, adding acidified carbon nanotubes to ultrasound treatment to obtain a carbon nanotube/graphene composite spinning solution, subjecting the carbon nanotube/graphene composite spinning solution to wet spinning, and drying to obtain a carbon nanotube/graphene-resin conductive fiber, subjecting the carbon nanotube/graphene-resin conductive fiber in the stretched condition to cryogenic treatment, maintaining in room temperature for a period of time to obtain the modified carbon nanotube/graphene-resin conductive fibers. The mass ratio of graphene and acidic carbon nanotubes is 1:1 to 1:5. The wet spinning coagulating bath is resin coagulation bath. The cooling rate of the cryogenic treatment is 0.5-5 degrees C/minute, the processing temperature is 90-200 degrees C and the treatment time is 3-15 hours.