▎ 摘　　要

NOVELTY - The preparation method of graphene nylon fiber involves placing graphene in a grinding mill, adding water, adding surface treating agent, and grinding to obtain graphene slurry, placing graphene slurry into a container, leaving still, and taking out slurry in upper portion of container as graphene sheet dispersion slurry, passing graphene sheet dispersion slurry through 5-micron screen, pumping into a synthesis reaction kettle containing caprolactam, synthesizing to obtain graphene nylon chips, mixing graphene nylon chips and nylon chips, drying, and performing wire drawing process. USE - Preparation method of graphene nylon fiber (claimed). ADVANTAGE - The method enables preparation of graphene nylon fiber with excellent consistency, conductivity, electromagnetic wave resistance, antistatic property, and high efficient far infrared ray shielding properties. DETAILED DESCRIPTION - The preparation method of graphene nylon fiber involves (1) placing 10 wt.% graphene with particle size of less than or equal to 0.5 microns in a vertical grinding mill, adding deionized water, adding surface treating agent within 1 hour after grinding for 2-4 hours under action of grinding medium, and continuously grinding for 1 hour to obtain graphene slurry, placing the graphene slurry into a container, leaving still for 4 hours, and taking out the slurry in upper portion of the container as graphene sheet dispersion slurry, (2) passing the graphene sheet dispersion slurry through 5-micron screen, pumping into a synthesis reaction kettle containing caprolactam, synthesizing to obtain graphene nylon chips containing 0.5-3 wt.% graphene, and (3) uniformly mixing graphene nylon chips and nylon chips, drying, and performing wire drawing process, where the graphene nylon fiber contains 0.5-3 wt.% graphene.