Abstract
As the rapid developing in infrared detection technology, infrared camouflage has attracted increasing attention in militarily. The two-dimensional transition metal carbide/nitride (MXene)-based film have been developed in IR stealth due to the low IR emissivity. However, the adjusting thermal camouflage is still a great challenge. In this study, we successfully fabricated a sandwich-structured MXene-ANF-MXene nanocomposite film by the vacuum-assisted filtration process. The composite film displayed remarkable infrared stealth performance of large reduction in radiation temperature. The lowest IR emissivity was 0.21. Additionally, adjusting infrared disguise and temperature modulation of the film were achieved by a stable and reliable Joule heating capability. The resulting composite film also exhibited multifunctionality including an impressively high electromagneticinterference(EMI) shielding efficiency of up to 56.2 dB, excellent mechanical properties, flame retardancy, and hydrophobicity. This work offers a simple avenue for preparing multifunctional sandwich-structured composite film by vacuum-assisted filtration method, demonstrating the great promise of MXene film for multifunctional application.
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