Flexible, Robust, and Durable Aramid Fiber/CNT Composite Paper as a Multifunctional Sensor for Wearable Applications,ACS Applied Materials & Interfaces

当前位置： X-MOL 学术 › ACS Appl. Mater. Interfaces › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Flexible, Robust, and Durable Aramid Fiber/CNT Composite Paper as a Multifunctional Sensor for Wearable Applications
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2021-01-23 , DOI: 10.1021/acsami.0c18161
Lin Wang ₁ , Meiyun Zhang ₁ , Bin Yang _{1,

2} , Xueyao Ding ₁ , Jiaojun Tan ₁ , Shunxi Song ₁ , Jingyi Nie ₁

Affiliation

Flexible paper-based sensors may be applied in numerous fields, but this requires addressing their limitations related to poor thermal and water resistance, which results in low service life. Herein, we report a paper-based composite sensor composed of carboxylic carbon nanotubes (CCNTs) and poly-m-phenyleneisophthalamide (PMIA), fabricated by a facile papermaking process. The CCNT/PMIA composite sensor exhibits an ability to detect pressures generated by various human movements, attributed to the sensor’s conductive network and the characteristic “mud-brick” microstructure. The sensor exhibits the capability to monitor human motions, such as bending of finger joints and elbow joints, speaking, blinking, and smiling, as well as temperature variations in the range of 30–90 °C. Such a capability to sensitively detect pressure can be realized at different applied frequencies, gradient sagittas, and multiple twists with a short response time (104 ms) even after being soaked in water, acid, and alkali solutions. Moreover, the sensor demonstrates excellent mechanical properties and hence can be folded up to 6000 times without failure, can bear 5 kg of load without breaking, and can be cycled 2000 times without energy loss, providing a great possibility for a long sensing life. Additionally, the composite sensor shows exceptional Joule heating performance, which can reach 242 °C in less than 15 s even when powered by a low input voltage (25 V). From the perspective of industrialization, low-cost and large-scale roll-to-roll production of the paper-based sensor can be achieved, with a formed length of thousands of meters, showing great potential for future industrial applications as a wearable smart sensor for detecting pressure and temperature, with the capability of electric heating.

中文翻译：

柔性，坚固耐用的芳纶纤维/ CNT复合纸，作为可穿戴应用的多功能传感器

柔性纸基传感器可应用于许多领域，但这需要解决它们与不良的耐热性和耐水性有关的局限性，从而导致使用寿命短。在本文中，我们报道（CCNTs）羧酸碳纳米管构成的纸基复合传感器和聚米-苯撑间苯二甲酰胺（PMIA），通过简便的造纸工艺制造。CCNT / PMIA复合传感器具有检测各种人体运动产生的压力的能力，这归因于传感器的导电网络和特征性的“泥砖”微结构。该传感器具有监视人体运动的能力，例如手指关节和肘关节的弯曲，说话，眨眼和微笑，以及30-90°C范围内的温度变化。即使在浸入水，酸和碱溶液中之后，也可以在不同的施加频率，梯度矢状和多次扭曲下以较短的响应时间（104毫秒）实现这种灵敏地检测压力的能力。此外，该传感器具有出色的机械性能，因此可以折叠多达6000次而不会发生故障，可以承受5公斤的负载而不会破裂，并且可以循环2000次而不会损失能量，这极大地延长了感应寿命。此外，复合传感器显示出卓越的焦耳加热性能，即使由低输入电压（25 V）供电，也可以在不到15 s的时间内达到242°C。从工业化的角度来看，纸质传感器的低成本和大规模卷对卷生产可以实现，其成形长度为数千米，作为可穿戴智能传感器在未来的工业应用中显示出巨大的潜力。用于检测压力和温度，并具有电加热功能。复合传感器显示出卓越的焦耳加热性能，即使使用低输入电压（25 V）供电，也可以在不到15 s的时间内达到242°C。从工业化的角度来看，纸质传感器的低成本和大规模卷对卷生产可以实现，其成形长度为数千米，作为可穿戴智能传感器在未来的工业应用中显示出巨大的潜力。用于检测压力和温度，并具有电加热功能。复合传感器显示出卓越的焦耳加热性能，即使使用低输入电压（25 V）供电，也可以在不到15 s的时间内达到242°C。从工业化的角度来看，纸质传感器的低成本和大规模卷对卷生产可以实现，其成形长度为数千米，作为可穿戴智能传感器在未来的工业应用中显示出巨大的潜力。用于检测压力和温度，并具有电加热功能。

更新日期：2021-02-03

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11