导电纱线及柔性传感器耐久性影响因素研究  

Study on factors influencing the durability of conductive yarns and flexible sensors

作　　者：郑姿辰 唐宁 王金凤 ZHENG Zichen;TANG Ning;WANG Jinfeng(College of Textile Science and Engineering(International Institute of Silk),Zhejiang Sci-Tech University,Hangzhou 310018,China;Key Laboratory of Industrial Textile Materials and Manufacturing Technology of Zhejiang Province,Hangzhou 310018,China)

机构地区：[1]浙江理工大学纺织科学与工程学院(国际丝绸学院),杭州310018 [2]浙江省产业纺织材料制备技术研究重点实验室,杭州310018

出　　处：《丝绸》2024年第1期52-60,共9页Journal of Silk

基　　金：纺织工程国家级教学示范中心项目(2020FZ03)。

摘　　要：为了探究影响导电纱线及柔性传感器耐久性的因素,本文选取5种典型金属导电纱线,首先分析洗涤次数、热定型温度及氧化时间对其电阻的影响。然后,以77 dtex镀银导电纱线织造不同尺寸的柔性传感器,进行30次洗涤测试,并用活性藏青BF-DB进行染色处理,以此分析洗涤和染色对传感器性能的影响。结果表明:三种因素对铜纤维的导电性能影响最大,而对铜丝和不锈钢导电纱线的导电性能影响最小,其耐洗涤性、耐热性及抗氧化性能良好。锦纶基镀银导电纱线电阻随着热定型温度的增大而减小,长度缩短;洗涤次数增加,其电阻有一定程度增大;氧化处理20 d后导电性能明显减弱。镀银导电纱编织的柔性传感器较耐洗涤,染色处理后其尺寸变小,但能维持稳定的导电性。The rapid development of wearable smart textiles has led to in-depth research on conductive yarns and flexible sensors.The most common conductive yarn on the market is metal-based conductive yarn.Such a yarn and the functional fabrics thereof have excellent electrical conductivity and play an important role in wearable applications.However,various external factors may affect its structure and electrical conductivity in the actual use process.The durability is an important indicator for evaluating such smart textiles.In this paper,to explore the factors affecting the durability of conductive yarns and flexible sensors,five typical metal conductive yarns were selected.Firstly,the effects of washing times,heat setting temperature,and oxidation time on the resistance of conductive yarns were analyzed.The influence of these three factors on the durability of each conductive yarn was expressed by analyzing the change in the resistance of each sample compared with the original resistance at different lengths.Then,considering the difficulty of weaving each yarn and the requirements of fabric performance,77 dtex silver-plated conductive yarn was selected to weave flexible sensors of different sizes.It was subjected to 30 washing tests,and the active navy blue BF-DB was used for dyeing treatment.By comparing with the original sample,the influence of washing and dyeing on the performance of the sensor was analyzed by the change of equivalent resistance under different horizontal and vertical lines of the flexible sensor.The results show that the three factors have the greatest influence on the electrical conductivity of copper fibers,while the durability is the worst.The copper wire and stainless steel conductive yarn,as a single component of metal filaments,have the smallest resistance change rate and stable electrical conductivity after multiple washing,heat drying under different temperatures and treatment of different oxidation times,indicating that they have good washing resistance,heat resistance and oxidation resista

关 键 词：导电纱线 柔性传感器 洗涤 热定型 氧化 染色 耐久性 导电性能 

分 类 号：TS186.5[轻工技术与工程—纺织材料与纺织品设计]