▎ 摘　　要

NOVELTY - Graphene acoustic electric signal conversion film based on Mxene enhancement comprises the thin film utilizes a distributed Mxene enhancement graphene conductive network to convert the vibration sound signal into electric signal of multiple orders of magnitude. USE - Used as graphene acoustic electric signal conversion film based on Mxene enhancement. ADVANTAGE - The film has high-strength and high-toughness mechanical property, improves the frequency response range of the detector, shortens the frequency response time, improves the sensitivity, improves the structure stability of graphene, and improves the sensitivity of the film to the vibration signal by using the two dimensional conductive thin layer structure of Mxene. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: preparing the graphene acoustic electric signal conversion film based on Mxene enhancement comprising (1) preparing single layer of a few layers of Mxene material, (2) using Mxene material as enhanced phase, mixing with the graphene oxide by solution way, obtaining Mxene enhanced graphene by hydrothermal reaction, and (3) mixing the Mxene enhanced graphene with elastic polymer monomer, performing in-situ shrinking of aggregate polymer monomer and filtering to form film to obtain the Mxene graphene elastic polymer film; a micro-acoustic sensing detector comprising the thickness of the graphene acoustic electric signal conversion film based on Mxene enhancement is 30-200 microns and the frequency response range is 50-1000 Hz; and a film piezoresistive sensor comprising bonding conductive copper foil to two ends of the graphene acoustic electric signal conversion film based on Mxene enhancement, connecting two ends with the electrochemical working station, bonding to the commercial sound surface and testing acoustic sensing performance. DESCRIPTION OF DRAWING(S) - The drawing shows a flow chart of the method for preparing the graphene acoustic electric signal conversion film based on Mxene enhancement.