▎ 摘　　要

NOVELTY - Graphene nylon yarn comprises 56-64 pts. wt. nylon raw materials, 8-13 pts. wt. graphene, 6-10 pts. wt. tungsten carbide, 5-8 pts. wt. silicon dioxide, 4-7 pts. wt. flame retardant, 2-6 pts. wt. nano-silver ion fiber, 3-7 pts. wt. antioxidant, 2-6 pts. wt. insect repellent, 2-5 pts. wt. dyeing agent and 1-3 pts. wt. antistatic agent. USE - As graphene nylon yarn. ADVANTAGE - The graphene nylon yarn has excellent tensile property, flame retardant effect, antibacterial and insect repellent effects, prevents the generation of static electricity and peculiar smell, and is not easy to fall off the graphene raw materials, durable, convenient and simple and easy to operate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the graphene nylon yarn, which involves (i) taking nylon raw materials, graphene, tungsten carbide, silicon dioxide, flame retardants, nano-silver ion fibers, antioxidant, insect repellent, dyeing agent and antistatic agent, (ii) selecting the nylon raw material obtained in step (i), slicing, cleaning and drying after slicing, removing water, and adding to a grinder for fine grinding to obtain nylon powder, (iii) selecting the graphene, tungsten carbide, silicon dioxide, flame retardant and nano-silver ion fiber obtained in step (i) and adding to a mixing stirrer, adding the nylon powder obtained in step (ii) to the mixing stirrer, controlling stirring temperature at 80-100 degrees C and speed at 180-240 rpm, stirring for 4-6 minutes, adding antioxidant, insect repellent, dyeing agent and antistatic agent to the mixing stirrer, controlling stirring temperature at 30-40 degrees C and speed at 150-160 rpm, and stirring for 10-15 minutes to obtain a base material, (iv) adding the base material obtained in step (iii) to a screw extruder for melting and mixing to obtain a fluid base material, and controlling the temperature of the screw extruder at 350-400 degrees C to obtain a fluid mixture, and (v) adding the fluid mixture obtained in step (iv) to a spinneret, pressing out the fluid from the spinneret holes, when the spinneret is sprayed, using cold air to blow the jetted filaments, introducing the filaments into cold water, controlling the temperature of cold water and cold air at 3-6 degrees C and the temperature inside the spinneret at 240-270 degrees C to obtain shaped filaments, winding the shaped filaments by oiling and performing balanced drawing.