Preparation of visible-infrared compatible stealth composite fabrics and all-weather multi-scenario military camouflage applications

To address the urgent demand for multispectral compatible stealth materials in dynamic battlefield environments and focusing on the thermal radiation peak of ground-based targets in the 8-14 mu m band, this study designed and fabricated a series of camouflage composite fabrics with bionic green and soil colors. These fabrics achieve effective compatible stealth in both the visible light and infrared (8-14 mu m) bands, along with excellent flame-retardant performance. By incorporating infrared-reflective aluminum powder, multi-color pigments, and a resin matrix through a precise scraping-coating technique, a multifunctional layered structure with variable chromaticity and emissivity was constructed. This synergistic design allows the fabrics to match vegetation and soil chromaticity in the visible band and achieve multi-level emissivity regulation within a single color in the infrared band. Furthermore, the materials exhibit outstanding flame retardancy (self-extinguishing immediately after removal of the ignition source following 10 s of burning), moisture-heat resistance (stable performance at 60 degrees C, 95% RH), and abrasion resistance (>20 friction cycles). The fabrics are also flexible, lightweight, foldable, and low-gloss. Leveraging their camouflage coloration, tunable emissivity, and double-sided structure, these fabrics can be rapidly flipped in mobile battlefield scenarios, enabling all-weather camouflage and fast switching between vegetation and desert environments.