▎ 摘　　要

NOVELTY - Flexible piezoelectric nano fiber net film comprises conductive film layer (2), composite nano-fiber net membrane membrane layer (3), and spinning polymer nano- fiber net membrane layer. The composite nano fiber mesh membrane layer is arranged between spinning polymer nanofiber mesh membrane and conductive material. The spinning polymer is provided with a spinning polymer and a conductive materials, and the spinning polymer electrospunns and conductively sprays electrospheres and conductors to obtain electrospinning and electrospatting. The conductivity material and the conductive membrane layer are made of titanium carbide, oxide graphene silver nano-wire and carbon nanotubes, and/or carbon nanofibers. USE - The PVDF nano fiber is useful in piezo-electric transduction device, electromechanical transduction, sensor, human-machine interface research in the field of favor, robot artificial skin and pulse detection, sound identification and other intelligent applications. ADVANTAGE - The flexible piezoelectric nano fiber net film has high conductivity of the conductive nano material and the high contact area between the fiber and three-dimensional electrode, thus lifting the piezo-electrode charge migration efficiency, under the condition of the pressure, the stress area is not changed, lifting the electric signal output, and boosting the electric performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: preparation method of flexible piezoelectric nano fibre net film; and piezoelectric transducer. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of double-sided three-dimensional electrode piezoelectric nanofiber transducer. 1Top copper foil electrode 2Conductive film layer 3Composite nano fibre net film layer 4Spinning polymer nano fibre net film layer 5Bottom copper foil electrode