▎ 摘　　要

NOVELTY - Preparing composite conductive fiber, involves placing activated graphene, carboxylated carbon nanotubes, silver nanowires, silver quantum dots, polypropylene chips and polyethylene chips to a high-speed mixer rotating at 500-4000 rotations per minutefor 3-35 minutes to obtain a mixture. The mass ratio of the activated graphene, the carboxylated carbon nanotube, the silver nanowire and the silver quantum dot is 1:10:(20-40):( 2-5). The mass ratio of the polypropylene slice to the polyethylene slice is (1-100):1. USE - Method for preparing composite conductive fiber (claimed). ADVANTAGE - The method enables to prepare composite conductive fiber in a simple and eco-friendly manner that is suitable for industrial production. The composite conductive fiber has wide application prospect, and has very good mechanical property, and excellent conductive property, tensile strength of the fiber is 8.0-10.0cN/dtex, the conductivity of the fiber is 1100-1500 Siemens per meter. DETAILED DESCRIPTION - Preparing composite conductive fiber, involves placing activated graphene, carboxylated carbon nanotubes, silver nanowires, silver quantum dots, polypropylene chips and polyethylene chips to a high-speed mixer rotating at 500-4000 rotations per minutefor 3-35 minutes to obtain a mixture. The mass ratio of the activated graphene, the carboxylated carbon nanotube, the silver nanowire and the silver quantum dot is 1:10:(20-40):( 2-5). The mass ratio of the polypropylene slice to the polyethylene slice is (1-100):1. The mixture is uniformly added into a twin-screw extruder for mixing and extrusion. The extruded material is quenched by a water bath at 40-50 degrees C and drawn into a pelletizer slice to obtain composite pellets. The prepared composite pellets are uniformly arranged in a tray, and are dried in a vacuum oven at 80-120 degrees C for 6-12 hours, and the pellets are spun through a vertical melt spinning machine to obtain the nascent filaments. The prepared composite pellets are prepared of the nascent silk are dried, oiled, and subjected to draft roller drafting and winding winder to obtain composite conductive fiber.