▎ 摘　　要

NOVELTY - Flame-retardant shoe upper material comprises 2-10 pts. wt. graphene, 30-40 pts. wt. polyvinyl alcohol, 20-120 pts. wt. graphene dispersant, 20-30 pts. wt. epsilon-caprolactone, 40-50 pts. wt. tetraphenyltin, 40-60 pts. wt. 2,5-dihydroxy-1,4-dithiane, 200-400 pts. wt. hot melt yarn, 240-300 pts. wt. natural fiber, and 20-30 pts. wt. flame retardant. USE - Flame-retardant shoe upper material. ADVANTAGE - The flame-retardant shoe upper material has excellent chemical property, good wear resistance and skid-proof performance, good antibacterial, deodorant and flame retardant property, uses natural fiber made of bamboo, which has a small growth cycle and is easy to obtain, and is beneficial for use. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a flame-retardant shoe upper material, which involves: (A) dispersing graphene in a graphene dispersant, using a stirrer for stirring during dispersion, and controlling stirring speed at 3000-3500 revolutions per minute; (B) preparing polycaprolactone by mixing epsilon-caprolactone, tetraphenyltin, and 2,5-dihydroxy-1,4-dithiane for a chemical reaction for 30-40 minutes; (C) adding polyvinyl alcohol to dispersed graphene, and stirring it to obtain stirred material; (D) adding hot melt yarn, natural fiber and polycaprolactone to stirred material, mixing it uniformly, drying it to obtain dried material, dissolving dried material a solvent for swelling treatment to obtain spinning stock solution; (E) adding flame retardant to spinning stock solution, mixing and stirring it uniformly; (F) mixing spinning stock solution with nano silver particles, pressing it out from spinneret to form a trickle, solidifying trickle to form a nascent fiber, and packaging it; and (G) spinning nascent fiber into shoe upper material through the spinning machine.