▎ 摘　　要

NOVELTY - A piezoelectric modified Spandex (RTM: Synthetic fiber) fabric reinforced by needling comprises modified Spandex (RTM: Synthetic fiber)fabric having sandwich structure, middle layer comprising polyurethane/polyvinylidene fluoride mixed fiber net, and remaining two layers comprising polyurethane/graphene composite fiber net. The polyurethane/polyvinylidenefluoride mixed fiber comprises polyurethane and polyvinylidenefluoride and the polyurethane/graphene composite fiber comprises polyurethane and grapheme. USE - The method is useful for preparing piezoelectric modified Spandex (RTM: Synthetic fiber) fabric reinforced needling machine. ADVANTAGE - The method enables preparation of piezoelectric modified Spandex (RTM: Synthetic fiber) fabric with excellent smoothness and uniformity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparation method of piezoelectric modified Spandex (RTM: Synthetic fiber) fabric reinforced by needle spine.