Interlocking‐Governed Ultra‐Strong and Highly Conductive MXene Fibers Through Fluidics‐Assisted Thermal Drawing

作者：Tianzhu Zhou, Can Cao, Shixing Yuan, Zhe Wang, Qi Zhu, Hao Zhang, Jialei Yan, Fan Liu, Ting Xiong, Qunfeng Cheng, Lei Wei · 发表于：Advanced Materials · 年份：2023 · DOI：10.1002/adma.202305807 · 被引用次数：79 · 研究领域：MXene and MAX Phase Materials、Advanced Sensor and Energy Harvesting Materials、Graphene research and applications

Abstract High‐performance MXene fibers are always of significant interest for flexible textile‐based devices. However, achieving high mechanical property and electrical conductivity remains challenging due to the uncontrolled loose microstructures of MXene (Ti3C2Tx and Ti3CNTx) nanosheets. Herein, high‐performance MXene fibers directly obtained through fluidics‐assisted thermal drawing are demonstrated. Tablet interlocks are formed at the interface layer between the outer cyclic olefin copolymer and inner MXene nanosheets due to the thermal drawing induced stresses, resulting in thousands of meters long macroscopic compact MXene fibers with ultra‐high tensile strength, toughness, and outstanding electrical conductivity. Further, large‐scale woven textiles constructed by these fibers offer exceptional electromagnetic interference shielding performance with excellent durability and stability. Such an effective and sustainable approach can be applied to produce functional fibers for applications in both daily life and aerospace.