包缠纱湿度传感器的制备及其性能研究  

Preparation and performance study of wrapped yarn humidity sensor

作　　者：林晓萍 刘皓[1,2] LIN Xiaoping;LIU Hao(College of Textile Science and Engineering,Tiangong Polytechnic University,Tianjin,300387,China;Institute of Smart Wearable Electronic Textiles,Tiangong Polytechnic University,Tianjin,300387,China)

机构地区：[1]天津工业大学纺织科学与工程学院,天津300387 [2]天津工业大学智能可穿戴电子纺织品研究所,天津300387

出　　处：《棉纺织技术》2025年第4期1-7,共7页Cotton Textile Technology

基　　金：国家自然科学基金(51473122);中国博士后科学基金(2021M691699)。

摘　　要：为克服柔性传感器的局限性并满足智能可穿戴设备的柔性需求,以Cleancool长丝为外包纱,锦纶镀银纱为芯纱,制备了双股包缠纱湿度传感器。通过测试不同捻度下双股包缠纱湿度传感器的湿度响应性能发现,最优捻度为1500捻/m,该传感器在6%~97%的相对湿度范围内展现出高达20104.6 pF/%RH的灵敏度。在20 Hz测试频率下,该传感器在6%~97%的相对湿度区间内,电容值变化达到6个数量级。传感器展现出良好的重复性和响应性,而且具有极小的湿滞性,能够完美适应任意曲线。将双股包缠纱湿度传感器嵌入织物或将单股包缠纱湿度传感器编织成阵列结构织物,能够精确监测各个点阵的相对湿度变化。认为:开发的单股/双股包缠纱湿度传感器能够与织物完美集成,实现相对湿度检测,为柔性湿度传感器在可穿戴电子产品领域的广泛应用开辟了新的路径。To overcome the limitations of flexible sensors and meet the flexibility requirements of intelligent wearable devices,a double-strand wrapped yarn humidity sensor was prepared using Cleancool filament as the wrapping yarn and nylon silver-plated yarn as the core yarn.The humidity response performance of the double-strand wrapped yarn humidity sensor was tested under different twist levels,revealing an optimal twist of 1500 twists/m.The sensor exhibited a high sensitivity up to 20104.6 pF/%RH within a relative humidity range of 6%to 97%.At a test frequency of 20 Hz,the capacitance value of the sensor changed across six orders of magnitude within the 6%to 97%relative humidity range.The sensor demonstrated excellent repeatability and responsiveness,with minimal hysteresis,enabling it to perfectly adapt to any curvature.Embedding the double-strand wrapped yarn humidity sensor into fabric or weaving the single-strand wrapped yarn humidity sensor into an arrayed structural fabric allows for precise monitoring of relative humidity changes at various points.It is believed that the developed single/doublestrand wrapped yarn humidity sensors can be perfectly integrated with fabric,enabling relative humidity detection and opening up new avenues for the widespread application of flexible humidity sensors in the field of wearable electronic products.

关 键 词：湿度传感器 相对湿度 电容式 包缠纱 吸湿快干纱线 灵敏度 测试频率 

分 类 号：TS101.3[轻工技术与工程—纺织工程]