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首页> 外文期刊>Journal of Materials Chemistry, C. materials for optical and electronic devices >Polyacrylic acid coated carbon nanotube-paper composites for humidity and moisture sensing
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Polyacrylic acid coated carbon nanotube-paper composites for humidity and moisture sensing

机译：聚丙烯酸涂层碳纳米管复合材料用于湿度和湿度传感

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摘要

Various carbon nanotube-paper composites (CPCs) have been studied to measure relative humidity. This study presents a tissue paper-based CPC coated with polyacrylic acid (PAA) for sensing humidity and surface moisture. When the CPC is exposed to humidity, its electrical resistance changes due to its electrostatic interaction with water molecules and the swelling of cellulose fibers and PAA. The enhancement of sensor response due to the swelling of CPCs coated with PAA, acid, and Nafion is studied in terms of resistance change. The hysteresis of a CPC sensor response to a cyclic humidity change is characterized for both the CPC region and the interfacial region between carbon nanotubes and a silver electrode. Based on the empirical relationship, the humidity sensor is applied for the measurement of surface moisture in a simulated sweat model. The CPC surface moisture sensor provides a low-cost, highly sensitive, light-weight flexible platform potentially beneficial for health, food, agricultural and environmental applications.
机译：已经研究了各种碳纳米管复合材料（CPC）以测量相对湿度。该研究介绍了涂有涂有聚丙烯酸（PAA）的基于纸巾的CPC，用于感测湿度和表面湿度。当CPC暴露于湿度时，其电阻由于其与水分子的静电相互作用和纤维素纤维和PAA的溶胀而变化。在抗性变化方面研究了由于涂有PAA，酸和Nafion的CPC溶胀而导致的传感器响应的增强。 CPC传感器对循环湿度变化的滞后的特征在于CPC区域和碳纳米管和银电极之间的界面区域。基于经验关系，湿度传感器应用于模拟汗水模型中表面湿度的测量。 CPC表面湿度传感器提供低成本，高度敏感的轻质柔性平台，可能有利于健康，食品，农业和环境应用。

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