▎ 摘　　要

NOVELTY - Flexible humidity sensor based on hydrophobic polytetrafluoroethylene micro porous material coating comprises a hydrophobic polytetrafluoroethylene microporous material substrate layer (1), a metal electrode layer (2), a humidity sensitive material layer (3), and a hydrophobic polytetrafluoroethylene microporous material protective layer (4). The metal electrode layer is located between the hydrophobic polytetrafluoroethylene microporous material substrate layer and the humidity sensitive material layer. The moisture sensitive material layer is provided with a hydrophobic polytetrafluoroethylene microporous material protective layer. The hydrophobic polytetrafluoroethylene microporous material protective layer is bonded to the hydrophobic polytetrafluoroethylene microporous material substrate layer. USE - Used as flexible humidity sensor based on hydrophobic polytetrafluoroethylene micro porous material coating. ADVANTAGE - The sensor is waterproof and antifouling, and the performance of the sensor is guaranteed due to the air permeability of the hydrophobic polytetrafluoroethylene microporous material. DETAILED DESCRIPTION - AN INDEPENDENT CLAIM is also included for: a preparation method of the flexible humidity sensor based on hydrophobic polytetrafluoroethylene microporous material coating, comprising (i) soaking the hydrophobic polytetrafluoroethylene microporous material substrate layer in ethanol at 25 degrees C for 3 hours; (ii) drying in the shade at 25 degrees C for 10 minutes and leaving part of the ethanol on the hydrophobic polytetrafluoroethylene microporous material substrate layer; (iii) depositing silver paste on the hydrophobic polytetrafluoroethylene microporous material substrate layer to form a metal electrode layer through a screen printing process, and vacuum drying at 80 degrees C for 30 minutes; (iv) dropping 0.1 ml 0.5 mg/ml graphene oxide aqueous dispersion on the metal electrode layer and vacuum dry at 50 degrees C for 1 hour to form a humidity sensitive material layer; and (v) bonding the hydrophobic polytetrafluoroethylene microporous material protective layer to the hydrophobic polytetrafluoroethylene microporous material substrate layer. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the front structure of the flexible humidity sensor based on hydrophobic polytetrafluoroethylene micro porous material coating. Hydrophobic polytetrafluoroethylene microporous material substrate layer (1) Metal electrode layer (2) Humidity sensitive material layer (3) Hydrophobic polytetrafluoroethylene microporous material protective layer (4)