具有延展及高靈敏性之新穎棉質濕度感測器

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题名:	具有延展及高靈敏性之新穎棉質濕度感測器 Novel flexible and stretchable textile humidity sensor
作者:	張均輔 (CHANG,CHUN-FU)
贡献者:	化學系應用化學碩士班
关键词:	靈敏性延展性棉質濕度感測器阻抗頻譜快速傅利葉轉換 Flexibility stretchability textile humidity sensor complex impedance spectra FFT
日期:	2018
上传时间:	2019-05-31 12:51:23 (UTC+8)
摘要:	本研究為製備甲基丙烯酸甲酯(MMA)及甲基丙烯醯胺基炳基三甲基銨氯化物(MAPTAC)聚合之poly-MMA-MAPTAC之共聚物直接滴定塗佈(drop-coating)於棉質纖維(Cotton fiber)上製備具延展性及可撓性棉質纖維式濕度感測元件。並探討甲基丙烯酸甲酯(MMA)及甲基丙烯醯胺基炳基三甲基銨氯化物(MAPTAC)聚合物的成份比例對棉質纖維式濕度感測元件的延展性及可撓性的相關性。另外同時探討棉質纖維式濕度感測器的耐水性、感測範圍、可撓性、延展性、與長期穩定性。最後利用阻抗頻譜分析圖探討此棉質纖維式濕度感測器的傳導機制，由阻抗頻譜分析的結果可知其感濕機制為離子傳導為主。 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.
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