Large-Scale Nanofiber Manufacturing| Selective Emission Fabric for Indoor and OutdoorPassive Radiative Cooling in Personal ThermalManagement

Prof. Han Guangping et al. at Northeast Forestry University Nano-Micro Lett. (IF 31.6): Selective Emissivity Textile for Indoor-Outdoor Passive Radiative Cooling in Personal Thermal Management

Challenge: Radiative cooling textiles create thermally comfortable environments without energy input, offering sustainable personal thermal management. However, most reported fabrics focus solely on outdoor cooling while neglecting simultaneous indoor-outdoor cooling, compromising overall performance.

Method: Prof. Han Guangping, Cheng Wanli, Huan Siqi, Wang Dong et al. at Northeast Forestry University developed a full-scale structural textile with selective emissivity via electrospinning for concurrent indoor-outdoor passive radiative cooling.

Innovation 1: The textile achieves 94% solar reflectance (0.3-2.5 μm) to minimize heat absorption and 6% mid-infrared reflectance (2.5-25 μm) to enhance thermal radiation release.

Innovation 2: It demonstrates 81% emissivity in the atmospheric window (8-13 μm) and 25% mid-infrared transmittance, delivering 60 W/m² outdoor and 26 W/m² indoor net cooling power respectively.

Innovation 3: In practical applications, the textile achieves superior human cooling (1.4-5.5°C lower than PDMS films) in both indoor and outdoor environments.