Design of Flexible MXene/Graphene-Based Fiber Fabrics for Broadband Electromagnetic Wave Absorption

Fabrics have attracted significant attention in the field of electromagnetic shielding due to their unique grid structure, high electrical conductivity, and flexibility. To enrich the research of textiles for microwave absorption, two-dimensional transition metal carbide (MXene)-enhanced reduced graphene oxide-based fabrics (MXene/RGO fabrics) were synthesized in this paper by using wet spinning–ionic cross-linking–chemical reduction strategy. MXene/RGO fabrics achieve a minimum reflection loss of − 58.3 dB at 17.6 GHz and a thickness of 2.4 mm, with an effective absorption bandwidth of 4.92 GHz. In addition, the combination of electromagnetic finite element simulation technology and test results was used to further elucidate the response mode and loss mechanism of MXene/RGO fabrics. The MXene/RGO composite fibers exhibit a tuned attenuation ability and impedance matching performance, which is attributed to the increased polarization relaxation loss caused by the large number of heterogeneous interfaces between RGO, MXene, and TiO₂ particles, as well as the appropriate electrical conductivity (16.6 S/cm). MXene/RGO fibers exhibit excellent microwave absorption performance, mechanical strength (534 MPa), easy modification, and fatigue resistance, promising stable absorption of electromagnetic waves in complex environments, thereby expanding the application scenarios of fabrics in the field of microwave absorption.

Graphical Abstract