Bioinspired Reprocessable Dual Crosslinked Solid-Solid Phase Change Material for Solar-Assisted Thermal Energy Storage and Multi-Scenario Thermal Camouflage

• • The FTSPCM achieves a high latent heat of 102.9 J g−1, enabling substantial thermal energy storage per unit mass, which is critical for compact thermal management systems. • • Under 2 Suns irradiation, the material reaches a surface temperature of 62 °C with a solar-thermal conversion efficiency of 96.85%, demonstrating exceptional photothermal performance for solar-assisted heating applications. • • The material maintains its thermal performance after three reprocessing cycles at 120 °C, confirming its reprocessability and potential for sustainable, circular manufacturing. • • The dual crosslinked structure, combining dynamic phenol–carbamate bonds and Fe3+@TA coordination, provides both reprocessability and photothermal responsiveness, enabling multi-scenario thermal camouflage.