▎ 摘　　要

NOVELTY - Graphene-nylon composite material fiber is claimed. The moisture absorption rate of fiber is 20-25%. USE - Used as graphene-nylon composite material fiber. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing graphene-nylon composite material fiber comprising carrying out liquid ammonia treatment by adding graphene into liquid ammonia, mixing and stirring under condition of sealing and heating, where pressure is 0.3-0.6 MPa, mixing time is 20-30 minutes, temperature is 40-50 degrees C, mixing and stirring, adding nano silver nitrate to treated solution, maintaining reaction temperature for 30-45 minutes, pressurizing to 0.8-1.2 MPa, reacting for 20-30 minutes, rising temperature to 80-120 degrees C until remaining liquid ammonia recovery is complete.