Flexible Mxene/Cunws/Tartaric Acid Composite Fabrics Constructed by Stacking Assembly for Electromagnetic Interference Shielding

Abstract

With the rapid development of modern communication technology, it is urgent to develop flexible wearable shielding fabrics with exceptional electromagnetic interference (EMI) shielding performance. Herein, a scalable multilayer stacking assembly method is proposed to prepare uniform MXene/CuNWs/Tartaric Acid (TA) composites-coated fabrics. MXene, as a new type of material, can achieve higher electron and ion transfer rates. However, it is prone to oxidation in air, leading to poor stability. Benefiting from the synergistic effect of tartaric acid, the MXene/CuNWs/TA-coated fabrics exhibit certain oxidation stability and corrosion resistance, while retaining the inherent flexibility and breathability of textiles. Furthermore, using a multi-layer stacking structure enables the modified fabrics to exhibit a low sheet resistance of 3.25 ± 0.12 Ω/sq and a good EMI shielding performance of 41.2 dB at X-band. Therefore, MXene/CuNWs/TA fabrics with high shielding performance are expected to reach their potential in wearable electronic products.

Keywords: Hybrid, EMI shielding, Fabric, Multilayer stacking assembly