• • Achieved 70 dB EMI shielding effectiveness in the X-band with only 0.0004% reflection using a 3.5-mm ML-Ti3C2Tx/PTFE-25 wt% film, addressing secondary electromagnetic pollution in sensitive electronics.
• • The roll-to-roll fabrication method enables scalable production of flexible composite films, with impedance matching tunable via thickness and ML-Ti3C2Tx content, facilitating adaptation to diverse device geometries.
• • The films maintain performance after deformation and exposure to −200°C, demonstrating exceptional environmental stability critical for aerospace and automotive applications.
• • The brick-mortar network and cavity structure of ML-Ti3C2Tx microparticles enhance multiple reflections and scattering, providing a design strategy for absorption-dominant shielding without compromising flexibility.