Fig. 3: Radiative cooling properties of FT-fabric.

a Reflectance and emissivity testing of FT-fabric and T fabric. b Scattering mechanism of foamed fiber and traditional ordered foamed fiber. c FTIR-ATR tests for FT-fabric and T-fabric. d The emissivity and transmittance ratio of FT-fabric in the MIR band. Radiant cooling power (e) daytime (f) night time. g Schematic diagram of device for radiative cooling test. h FT-fabric, sunproof cloth and swimwear practical testing of radiative cooling (Data were recorded on August 5th in Guangzhou, China). i Average temperature change for FT-fabric, sunproof cloth and swimwear.