▎ 摘　　要

NOVELTY - Respiratory monitoring mask based on a triboelectric nanogenerator, is woven from a gas-sensitive spinning thread A and a triboelectric spinning thread B, where gas-sensing spinning thread A soaks the gas-sensitive material, and axis of thread A is provided with a copper wire, and the tribo-electrospinning thread B and the air-sensing spinning thread A have a different tribo-electrode sequence. The copper wire is used as an electrode, the gas-sensitive spinning wire A is used as the first friction layer and the gas-sensitive layer. The triboelectrospinning thread B is used as the second friction layer to form the fiber structure of the friction layer-gas-sensing layer-electrode. The two spinning threads of the gas-sensitive spinning thread A and the triboelectric spinning thread B are continuously separated and attached through the action of the human body's breathing airflow to convert the mechanical energy into electrical signals. USE - Respiratory monitoring mask based on a triboelectric nanogenerator used for detecting physiological and pathological information of a human body. ADVANTAGE - The respiratory monitoring mask is cost-effective, and has simple structure, flexible and wearable, makes full use of the continuous, low-frequency, and tiny mechanical energy provided by human respiration. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a breath monitoring mask based on a friction nanogenerator, which involves: preparing a bundle of 1-5 m spun yarns, cleaning the spun yarns by using absolute ethyl alcohol, cleaning the spun yarns by using a 1 mol/L sodium hydroxide solution to remove oil stains, soaking the spun yarns by using dilute hydrochloric acid to remove residual alkaline solution, cleaning the spun yarns by using deionized water, and drying the spun yarns to obtain clean spun yarns; preparing a solution containing a gas-sensitive material, soaking the clean spun yarn in the solution, taking out the spun yarn after the gas-sensitive material is completely adsorbed, and drying to obtain the spun yarn adsorbed with the gas-sensitive material; equally dividing the spun yarn 5-16 adsorbed with the gas-sensitive material, placing a section of copper wire with equal length in the middle of the spun yarn, and twisting the spun yarn on the copper wire by taking the copper wire as an axis to obtain the gas-sensitive spun yarn containing the copper electrode; electing a knitting method, and knitting a gas-sensitive spinning thread containing a copper electrode and another spinning thread with different triboelectric sequences with the gas-sensitive spinning thread together to obtain a respiration monitoring fabric based on a friction nano-generator; The breathing monitoring mask is made by cutting the breathing monitoring woven fabric, or the breathing monitoring woven fabric is sewn inside a commercial mask to prepare the breathing monitoring mask.