1. Article overview
The development of sensors based on one-dimensional optical fibers to meet the requirements of rotatable, portability, flexibility and compatibility of smart wearable devices has aroused more and more interest. Here, we report the highly conductive MXene@arylamine nanofibers (ANFs) with a unique skin core structure using wet spinning. MXene is an emerging two-dimensional conductive material that is used to establish internal conductive paths. The ANF frame acts as a protection and skeleton structure to reduce the probability of fiber oxidation and obtain superior strength. The obtained MXene@ANF fiber has superior electrical conductivity and tensile strength and is a promising smart fabric sensor that can detect abundant detection motions, fast response time, and long service life. Thanks to its high flexibility, it can be used as a smart wearable device to be sewn into textiles and gloves. In addition to excellent thermal stability, it also has a wide heating temperature and a fast heating temperature, and has good electric heating performance.

Two, graphic guide

Figure 1. Schematic diagram of the preparation process of skin-core composite MXene@ANF fiber.

Figure 2. The topography of the surface and cross-sectional scanning electron microscope images of all synthetic fibers.

Figure 3. Analysis diagram of element distribution of fibers in cross-sectional scanning electron microscopy images.

Figure 4. The mechanical properties of the fiber.
3. Full text summary
In summary, the author uses convenient and continuous wet spinning technology to manufacture a conductive MXene@ANF fiber with a sheath-core structure, in which high-strength, high-modulus anf is used as the skin and frame structure, and the emerging MXene is used as the function The material imparts higher conductivity to the composite fiber. It is worth noting that the high-strength MXene@2%ANF fiber is a promising smart fabric sensor used to detect different human motions, with abundant motion detection, fast response time and long service life. At the same time, it is also used as an electric heating material with wide heating temperature and rapid heating temperature. Thanks to its high flexibility, it can be used as a smart wearable device to be sewn into textiles and gloves. Therefore, MXene@2%ANF fiber has great potential as a sensor that is expected to be applied to electric heating and smart wearable devices.
Article link:
https://doi.org/10.1021/acsami.1c13645
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