College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China.
Nanoscale. 2020 Aug 13;12(31):16562-16569. doi: 10.1039/d0nr04023a.
Stretchable and flexible electronics built from multifunctional fibres are essential for devices in human-machine interactions, human motion monitoring and personal healthcare. However, the combination of stable heating and precision sensing in a single conducting yarn has yet to be achieved. Herein, a yarn comprising poly(ethylene terephthalate) (PET), silver nanowires (AgNWs), and polydimethylsiloxane (PDMS) was designed and prepared. The PET/AgNW/PDMS yarn exhibited high electrical conductivity at ≈3 Ω cm-1 and a large tolerance to tensile strain up to 100% its own length. Only a negligible loss of electromechanical performance was observed after 1700 strain cycles. And an excellent response to applied strain was also achieved across a huge stretching range. The PET/AgNW/PDMS yarn displayed excellent heating performance and outstanding breathability when used in a heating fabric, and excellent sensitivity for monitoring both gross and fine movements in humans when used as a sensor.
由多功能纤维制成的可拉伸和灵活的电子产品对于人机交互、人体运动监测和个人保健中的设备至关重要。然而，在单个导电纱线中同时实现稳定的加热和精确的传感仍然有待实现。在此，设计并制备了一种包含聚对苯二甲酸乙二醇酯 (PET)、银纳米线 (AgNWs) 和聚二甲基硅氧烷 (PDMS) 的纱线。PET/AgNW/PDMS 纱线在 ≈3 Ω cm-1 时表现出高导电性，并且对拉伸应变的容忍度高达其自身长度的 100%。在经过 1700 次应变循环后，仅观察到机电性能的微小损失。并且在巨大的拉伸范围内也实现了出色的应变响应。当用作加热织物中的加热线时，PET/AgNW/PDMS 纱线显示出出色的加热性能和出色的透气性，并且当用作传感器时，对监测人体的大运动和小运动具有出色的灵敏度。
