▎ 摘　　要

NOVELTY - Graphene loading PTFE fiber based on industrial dyeing includes loading graphene oxide on PTFE fiber surface by immersing PTFE fiber in graphene oxide water dispersion in infrared dyeing machine, taking out, using a padder to remove excess moisture, drying, and repeating the process to increase the loading amount of graphene oxide, graphene oxide reduction by adding graphene oxide-loaded PTFE fiber and sodium hydrosulfite aqueous solution in infrared dyeing machine, stirring, reducing graphene oxide, hot water washing and washing with distilled water. USE - Graphene loading PTFE fiber based on industrial dyeing to obtain graphene-loaded PTFE fiber (claimed). ADVANTAGE - The method provides graphene-loaded PTFE fiber having light black to dark black surface, where color hue and depth can be controlled, and excellent load fastness, is relatively simple, and has easy operation and moderate cost. DETAILED DESCRIPTION - Graphene loading PTFE fiber based on industrial dyeing comprises pretreatment of PTFE fiber by adding PTFE fiber filaments into 2.0 g/L nonionic surfactant water solution, treating by stirring for 10 minutes, taking out, washing at room temperature, washing, drying, putting in acetone, room temperature stirring for 20 minutes, taking out, and vacuum drying for 24 hours at 70 degrees C, acrylic acid grafting the surface of pretreated PTFE fiber by adding 8 g pretreated PTFE fiber in 20-120 ml acrylic acid and 250 ml distilled water, adding 10 g ammonium ferrous sulfate, stirring uniformly, introducing nitrogen for 25 minutes into the mixed system to remove air, silicone rubber sealing, grafting acrylic acid on PTFE fiber surface by cobalt (Co)60 gamma -irradiating at 1.0 kGy/hour and room temperature for 60 hours, taking out the fiber, repeatedly washing with hot water and acetone to remove the residual monomer and homopolymer on fiber surface, vacuum drying at 50 degrees C for 24 hours, and obtaining acrylic acid-modified PTFE fiber having grafting rate of 9.5% as calculated by weight gain method, preparing graphene oxide water dispersion by adding 0.50 g graphene oxide powder and 199.5 g distilled water in a beaker, stirring at room temperature for 5 minutes using magnetic stirrer, ultrasonically treating for 15 minutes using ultrasonic cell crusher to uniformly disperse graphene oxide powder in water, and obtaining brownish yellow graphene oxide water dispersion, loading graphene oxide on PTFE fiber surface by immersing 1.0 g PTFE fiber in 50 ml graphene oxide water dispersion in infrared dyeing machine for 20 minutes, taking out, using a padder to remove excess moisture, drying at 60 degrees C, and repeating the process for 8 times to increase the loading amount of graphene oxide, graphene oxide reduction by adding 1.0 g graphene oxide-loaded PTFE fiber and 50 ml sodium hydrosulfite aqueous solution in infrared dyeing machine, stirring for 15 minutes at 100 degrees C, reducing graphene oxide, 70 degrees C hot water washing for 30 minutes, washing with distilled water for 3 times to obtain graphene oxide-loaded PTFE fiber, and using whiteness meter and ohmmeter to respectively measure Hunter whiteness and surface resistance.