From MXene to Multimodal-Responsive Smart, Durable Electromagnetic Interference Shielding Textiles

Achieving wearable, multifunctional e-textiles with high mechanical properties, exceptional environmental durability, and intelligent, responsive capabilities remains a significant challenge. Here, novel high-strength, environmentally adaptable, and intelligent electromagnetic interference (EMI) shielding fibers/e-textiles composed of polyvinyl alcohol-assisted multiple crosslinking MXene nanosheets are prepared through a facile, scalable wet spinning approach. The synergistic effect of hydrogen, ionic, and covalent bonds significantly enhances the mechanical properties, hydrophobicity, waterproof capability, and oxidation resistance of MXene-embedded fibers/textiles, contributing to the reliability and durability of wearable textiles even in harsh environments. Moreover, through the high-efficiency utilization of PVA and MXene, the textiles can achieve dynamic, wide-ranging control of EMI SE with multimodal response involving orientation, humidity, and light/electric stimuli. The novel type of textiles acting as intelligent, smart EMI shielding “On/Off” or “High/Low” switches are demonstrated. Combined with the multifunctionalities of thermal therapy, deicing, and antibacterial implemented, the high-strength, environmentally adaptive, and multimodal-responsive MXene-embedded smart EMI shielding e-textiles show great promise for advancing the development of next-generation, wearable, smart electronics.