▎ 摘　　要

NOVELTY - Production of composite nanofibers involves producing copolymer of poly(vinylidene fluoride) and reduced graphene oxide composite solution containing 24 %(weight/volume) poly(vinylidene fluoride) and 0.1% reduced graphene oxide, adding 0.01-0.05 wt.% N,N-dimethylacetamide, supplying resulting solution to a stirring container, closing the container, stirring at 50-80 rpm for 24 hours at room temperature, performing electrospinning at 16-25 kV at flow rate of 0.5-2 mu L/minute, producing a nanofiber product, characterizing nanofiber using scanning electron microscope to obtain nanofiber morphological images, and determining contact angle of nanofiber based on hydrophobic properties. USE - Production of composite nanofibers for sensor and flexible electronics. ADVANTAGE - The composite nanofiber having desired hydrophobicity can be produced. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for composite nanofiber having diameter of 100-1000 nm, porous structure and average contact angle of 115-146 degrees .