In this work, we propose the preparation of foamed TPU fibers and foamed fabrics (FT-fabric) with anisotropic cell structure using TPU as substrate by micro-extrusion foaming techniques. Thanks to the multistage cell distribution of FT-fabric and the vibrational absorption of the polymer in the MIR band, the prepared FT-fabric has a near-infrared reflectance of more than 97%, which enables effective radiative cooling. The porous structure of the FT-fabric endows it with an ultra-low density, which is able to provide additional buoyancy in water.
- Yushu Wang
- Hanyi Huang
- Wentao Zhai
