3D cotton-like phase change fibers via electrospinning for thermal management of textile

Novel textile woven by phase change fibers (PCFs) has an extensive application in personal thermoregulation. Nevertheless, previous studies mainly focus on two-dimensional (2D) textiles with phase change fibers, which have suffered from many issues such as limited weak elasticity, poor comfort, and inferior thermal insulation property. Herein, we firstly prepared 2D textiles with PCFs by direct electrospinning. Phase change materials can be encapsulated in tiny holes in fiber and form a stable honeycomb structure. The 2D textiles with PCFs exhibit high melting enthalpy and low thermal conductivity. In addition, the PEG retention rate is still high after many cold and hot cycles. 2D textile has a significant delay in temperature change in the heating and cooling processes. Then, the 2D textiles are transformed into the three-dimensional (3D) textile with phase change cotton-like fibers (PCCFs) through multi-needle spinning. 3D textile with PCCFs has fluffy structure, small volume density, and high porosity. The 3D textile exhibits superior stretching ability and excellent compressive resilience, their thermal conductivity is less than that of the commercial cotton and eiderdown. Hence, this work provides a new vision for developing novel textiles as candidate instead of traditional warm filler.