Integration of photo‐driven rapid self‐healing and environmental robustness for durable electromagnetic wave absorbing elastomers

Abstract Poor environmental robustness, especially physical damage and chemical corrosion, has remained a primary challenge in practical applications of electromagnetic (EM) wave absorbing materials. The core obstacle involves coupled trade‐offs: increasing EM filler loading enhances EM attenuation but restricts polymer healing kinetics needed for rapid self‐healing, while also increasing the susceptibility of fillers to oxidation and corrosion. This work proposes a novel photothermally driven MXene/self‐healing polyurethane (SPU) elastomer that reconciles these competing requirements. Under xenon lamp (simulated sunlight, 1000 W m −2 ), MXene's photothermal conversion effectively accelerates the reversible…