▎ 摘　　要

NOVELTY - Graphene flexible sensor comprises graphene composite material and a wire, the two ends of the graphene composite material is connected by a conductive silver paste. USE - Used as graphene flexible sensor. ADVANTAGE - The sensor has high sensitivity and wide testing range; is simple and has strong operability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing flexible sensor comprising (1) adding graphene material with organic solvent, performing ultrasonic oscillation process, uniformly dispersing in the organic solvent until the graphene material to obtain mixed solution I, allowing to stand the mixed solution I, volatilizing the organic solvent to obtain the graphene solution, (2) adding flexible substrate liquid in the graphene solution to obtain the mixed solution II, using mixed solution II at room temperature and performing ultrasonic oscillation process, until the graphene dispersing uniformly to obtain the mixed solution III, (3) adding curing agent in the mixed solution III, stirring, until stirring them uniformly, obtaining mixed solution IV, (4) pouring the mixed solution IV into a mold, allowing to stand at room temperature, until the mixed solution IV is uniformly distributed in the mold, adding into a vacuum drying box for curing to obtain the graphene composite material, and (5) cooling the graphene composite material conductive silver paste for the two wires is connected to two ends of the graphene composite material to obtain graphene flexible sensor.