Continuously Producible Ultrasensitive Wearable Strain Sensor Assembled with Three-Dimensional Interpenetrating Ag Nanowires/Polyolefin Elastomer Nanofibrous Composite Yarn,ACS Applied Materials & Interfaces

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Continuously Producible Ultrasensitive Wearable Strain Sensor Assembled with Three-Dimensional Interpenetrating Ag Nanowires/Polyolefin Elastomer Nanofibrous Composite Yarn
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-11-20 00:00:00 , DOI: 10.1021/acsami.7b11431
Weibing Zhong ₁ , Cui Liu ₁ , Chenxue Xiang ₂ , Yuxia Jin ₁ , Mufang Li ₂ , Ke Liu ₂ , Qiongzhen Liu ₂ , Yuedan Wang ₂ , Gang Sun ₃ , Dong Wang _{1,

2}

Affiliation

Fiber-shaped strain sensors with great flexibility and knittability have been tremendously concerned due to the wide applications in health manager devices, especially in human motion detection and physiological signal monitoring. Herein, a novel fiber-shaped strain sensor has been designed and prepared by interpenetrating Ag nanowires (NWs) into polyolefin elastomer nanofibrous yarn. The easy-to-obtain structure and simple roll-to-roll process make the continuous large-scale production of nanofibrous composite yarn possible. The continuous and alternating stretching and releasing reversibly change the contact probability between AgNWs in this interpenetrating network, leading to the variations of electrical resistance of the sensor. The gauge factors of strain sensors are calculated to be as high as 13920 and the minimum detection limit is only 0.065%. In addition, the strain sensor shows excellent durability during 4500 cycles with the strain of 10%. The response times of stretching and releasing strains are 10 and 15 ms, respectively. Furthermore, the strain sensor has been successfully applied in human motion detections both in single yarn and knitted fabrics. The result shows the practicability in applications of monitoring limbs movements, eye motion changes, artificial vocal cords, human pulse, and complex motions, which shows great potential in wearable sensors and electronic skin.

中文翻译：

三维互穿银纳米线/聚烯烃弹性体纳米纤维复合纱组装的连续生产超灵敏可穿戴应变传感器

由于在健康管理器设备中，尤其是在人体运动检测和生理信号监视中的广泛应用，具有极大灵活性和可编织性的纤维形应变传感器受到了极大的关注。本文中，已经通过将Ag纳米线（NW）互穿到聚烯烃弹性体纳米纤维纱中来设计和制备了新型的纤维状应变传感器。易于获得的结构和简单的卷对卷工艺使纳米纤维复合纱线的连续大规模生产成为可能。连续交替的拉伸和释放可逆地改变了该互穿网络中AgNW之间的接触概率，从而导致传感器电阻的变化。计算得出的应变传感器的规格因子高达13920，最小检测极限仅为0。065％。此外，应变传感器在4500次循环中表现出出色的耐久性，应变率为10％。拉伸应变和释放应变的响应时间分别为10 ms和15 ms。此外，应变传感器已成功地应用于单纱和针织物中的人体运动检测。结果表明，在监测肢体运动，眼睛运动变化，人造声带，人脉和复杂运动的应用中具有实用性，这在可穿戴传感器和电子皮肤中显示出巨大潜力。应变传感器已经成功地应用于人体运动检测中的单纱和针织面料。结果表明，在监测肢体运动，眼睛运动变化，人造声带，人脉和复杂运动的应用中具有实用性，这在可穿戴传感器和电子皮肤中显示出巨大潜力。应变传感器已经成功地应用于人体运动检测中的单纱和针织面料。结果表明，在监测肢体运动，眼睛运动变化，人造声带，人脉和复杂运动的应用中具有实用性，这在可穿戴传感器和电子皮肤中显示出巨大潜力。

更新日期：2017-11-21

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