An electrospinning flexible textile integrating radiative cooling and solar heating for dynamic thermoregulation

Abstract

Radiative thermoregulation technologies provide a sustainable thermal management solution due to zero-energy consumption. However, there remains a lack of textiles capable of achieving dynamic thermoregulation in both indoor and outdoor environments. To mitigate this challenge, we developed a flexible textile by electrospinning to achieve dynamic thermoregulation from solar to mid-infrared spectra by flipping, which features a cooling side with high solar reflectance (R @#x0305;_solar = 0.969) and high thermal emittance (ε @#x0305;_LWIR = 0.939), and a heating side with high solar absorptance (α @#x0305;_solar = 0.687) and low thermal emittance (ε @#x0305;_LWIR = 0.055). Under outdoor conditions, compared with the cotton textile, the textile can achieve a temperature increase of 5.7 °C in heating mode and a temperature drop of 6.7 °C in cooling mode, resulting in an annual energy savings of 28.26 MJ m-2. These results demonstrate the textile’s strong potential for sustainable, adaptive thermal management in personal wear and building energy saving.