MXene-Coated Wrinkled Fabrics for Stretchable and Multifunctional Electromagnetic Interference Shielding and Electro/Photo-Thermal Conversion Applications

• DOI: 10.1021/acsami.1c19890
• Publication Date: 2021-12-13T11:49:13Z
• Authors: Jingwen Dong; Shilu Luo; Senpeng Ning; Gui Yang; Duo Pan; Youxin Ji; Yuezhan Feng; Fengmei Su; Chuntai Liu
• Keywords: Thermoplastic polyurethane; Photothermal effect

Stretchability and multifunctional heating abilities are highly desired for wearable electromagnetic interference (EMI) shielding fabrics to tackle the growing pollution special crowd, such as pregnant women. Herein, we fabricated stretchable MXene-coated thermoplastic polyurethane (TPU) by simple uniaxial prestretching spraying methods. The obtained unique wrinkled structure endowed film with effective strain-invariant electrical conductivity EMI properties. Specifically, prepared an extremely low MXene loading (0.417 mg cm-2) exhibited a stable effectiveness of approximately 30 dB under 50% tensile strain durability during stretching bending cycles. More importantly, owing high localized surface plasmon resonance (LSPR) effect layer, excellent Joule (up 104 °C at voltage 5 V) superior photothermal conversion abilities. Moreover, MXene-coating layer not only endows heat but also enhances performance increasing light absorption area travel path. We believe that this study offers novel strategy versatile design fabrics.