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    Please use this identifier to cite or link to this item: https://irlib.pccu.edu.tw/handle/987654321/41879


    Title: Fabrication and electrical and humidity-sensing properties of a flexible and stretchable textile humidity sensor
    Authors: Su, PG (Su, Pi-Guey)
    Chang, CF (Chang, Chun-Fu)
    Contributors: 化學系所
    Keywords: THIN-FILMS
    POLYMERS
    SODIUM
    Date: 2018-06
    Issue Date: 2019-01-17 15:04:00 (UTC+8)
    Abstract: A novel flexible and stretchable textile impedance-type humidity sensor was fabricated by weaving white cotton fabric to form a substrate with a pair of parallel electrodes that were made of conductive yarns, and then spray-coating the as-woven textile substrate with a copolymer of methyl methacrylate (MMA) and [3-(methacrylamino)propyl] trimethyl ammonium chloride (MAPTAC) (poly-MMA/MAPTAC) to form a humidity-sensing film. The effects of the concentration of poly-MMA-MAPTAC on the sensitivity, flexibility and stretchability of the textile impedance-type humidity sensor were studied. The 10 vol.% poly-MMA/MAPTAC-coated textile impedance-type humidity sensor had very high stretchability, high flexibility, wide working range, high sensitivity, acceptable linearity, low hysteresis, fast response/recovery time and long-term stability over a relative humidity (RH) range of 20-90% RH. The humidity-sensing mechanism of the textile impedance-type humidity sensor was explained using complex impedance spectra. The fast Fourier transform (FFT) was used to discriminate between a textile impedance-type humidity sensor under bending and human breath monitoring. (C) 2018 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
    Appears in Collections:[Department of Chemistry & Graduate Institute of Applied Chemistry ] journal articles

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