▎ 摘　　要

NOVELTY - Composite electrically conductive monofilament comprises substrate, graphene, carbon nanotube and carbon black. USE - The conductive monofilament is used in a smart wearable device (claimed). ADVANTAGE - The conductive monofilament has point-line-surface three-dimensional conductive network with permanent antistatic property, surface resistance of 10-1000 Omega , strength of greater than or equal to 40 MPa, elongation of greater than or equal to 115%, UV protection performance of UV A radiation of less than or equal to 5% and UV B radiation of less than or equal to 5%, ultraviolet protection factor rating of greater than or equal to 50, far-infrared emissivity of greater than or equal to 0.88, half-life of less than or equal to 2 seconds and inhibition rate of greater than or equal to 97%. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the monofilament, involving (a) mixing substrate, graphene, carbon nanotube and carbon black to obtain a wire drawing masterbatch, (b) carrying out extrusion, filter screen filtration and wire drawing treatment on the masterbatch to obtain a wire material, (c) carrying out pre-crystallization treatment on the wire material, and (d) performing thermal stretching treatment on the pre-crystallized filament material.