基于 MXene@Aramid 纳米纤维作为智能织物传感器的轻质、坚固、导电复合纤维,ACS Applied Materials & Interfaces

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基于 MXene@Aramid 纳米纤维作为智能织物传感器的轻质、坚固、导电复合纤维
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2021-08-27 , DOI: 10.1021/acsami.1c13645
Lin Wang ₁ , Meiyun Zhang ₁ , Bin Yang ₁ , Jiaojun Tan ₁

Affiliation

开发基于光纤的一维传感器以满足智能可穿戴设备对可旋转性、便携性、灵活性和易贴合性的要求，引起了越来越多的兴趣。在这里，我们通过湿纺方法报告了具有独特皮芯结构的高导电性 MXene@aramid 纳米纤维（ANF）。MXene 是一种新兴的 2D 导电材料，用于构建内部导电路径。ANF 框架起到保护和骨架结构的作用，以降低纤维氧化概率并实现卓越的强度。获得的 MXene@ANF 纤维具有优异的导电性（2515 S m ^–1) 和拉伸强度 (130 MPa) 作为一种很有前途的智能织物传感器，可以检测不同的人体动作，具有丰富的检测动作、快速的响应时间（100 ms）和长的使用寿命（高达 1000 次循环）。得益于其高度的灵活性，它可以缝制成纺织品和手套作为智能可穿戴设备。除了优异的热稳定性外，它还显示出有希望的电热性能，具有广泛的加热温度（25-123°C）和快速加热温度（10 s）。因此，具有皮芯结构的 MXene@ANF 纤维作为一种有前途的传感器，在电加热和智能可穿戴织物中显示出巨大的潜力。

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Lightweight, Robust, Conductive Composite Fibers Based on MXene@Aramid Nanofibers as Sensors for Smart Fabrics

Developing one-dimensional fiber-based sensors to meet the requirement of spinnability, portability, flexibility, and easeful conformability in smart wearable devices has attracted increasing interest. Here, we report highly conductive MXene@aramid nanofibers (ANFs) with a distinct skin-core structure by the wet spinning method. MXene, an emerging 2D conductive material, is applied to build internal conductive paths. ANF frameworks function as protective and skeleton structures to reduce the fiber oxidation probability and achieve superior strength. The obtained MXene@ANF fiber with superior conductivity (2515 S m^–1) and tensile strength (130 MPa) works as a promising sensor for smart fabrics to detect different human movements with abundant detection motions, fast response time (100 ms), and long service life (up to 1000 cycles). Benefiting from its high flexibility, it can be sewn into textile and gloves as a smart wearable device. Besides superior thermal stability, it shows promising electrothermal properties with wide heating temperature (25–123 °C) and fast heating temperature (10 s). Therefore, the MXene@ANF fiber with the skin-core structure shows great potential as a promising sensor to be applied in electric heating and smart wearable fabrics.

更新日期：2021-09-08

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