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

Abstract

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

Air-permeable and flexible multifunctional cellulose-based textiles for bio-protection, thermal heating conversion, and electromagnetic interference shielding

“…When CNs-P is soaked in the MXene solution, the Ti 3 C 2 T x nanosheets may be in situ formed on the fiber surface via the van Der Waals force and hydrogen bonding, leading to an evenly wrinkled structure (Fig. 2f), 16 which could facilitate the absorption of the electromagnetic wave 60,61 and improvement of the photothermal 61 and electrothermal 62 performance of fiber materials. The EDS mapping also illustrates the uniform dispersion of MXene on the fiber surface (Fig.…”

Highly Flexible Fabrics/Epoxy Composites with Hybrid Carbon Nanofillers for Absorption-Dominated Electromagnetic Interference Shielding

“…We identified the EMI-shielding performances of electrically conductive nanofillers-loaded polymeric composites (CPCs), as summarized in Fig. 5d [21,30,[67][68][69][70][71][72][73][74][75][76][77]. Owing to efficient EMI-shielding performances, the CPCs exhibit advantages of lightweight, high flexibility, and ease of processing with the benefit of low cost [78].…”

Two-dimensional ultrathin Ti3C2 MXene nanosheets coated intraocular lens for synergistic photothermal and NIR-controllable rapamycin releasing therapy against posterior capsule opacification

“…It has been coated on the surface of commercial IOL to form an accommodating IOL with an easy two-step spin coating method without affecting the optical performance or quality of IOL ( Ward et al, 2020 ). Furthermore, MXene is suitable as the photothermal transducer for NIR-controllable drug release, which is attributed to the localized surface plasma resonance effect ( Beckers et al, 2021 ; Dong et al, 2021 ). However, the biocompatibility of MXenes remains controversial, which inhibits the further application of MXenes in biomedicine.…”