Bioinspired Hierarchical Multi‐Protective Membrane for Extreme Environments via Co‐Electrospinning‐Electrospray Strategy

Abstract Extreme environments can cause severe harm to human health, and even threaten life safety. Lightweight, breathable clothing with multi‐protective functions would be of great application value. However, integrating multi‐protective functions into nanofibers in a facile way remains a great challenge. Here, a one‐step co‐electrospinning‐electrospray strategy is developed to fabricate a superhydrophobic multi‐protective membrane (S‐MPM). The water contact angle of S‐MPM can reach up to 164.3°. More importantly, S‐MPM can resist the skin temperature drop (11.2 °C) or increase (17.2 °C) caused by 0 °C cold or 70 °C hot compared with pure electrospun membrane. In the cold climate (−5 °C), the anti‐icing time of the S‐MPM is extended by 2.52 times, while the deicing time is only 1.45 s due to the great photothermal effect. In a fire disaster situation, the total heat release and peak heat release rate values of flame retarded S‐MPM drop sharply by 24.2% and 69.3%, respectively. The S‐MPM will serve as the last line of defense for the human body and has the potential to trigger a revolution in the practical application of next‐generation functional clothing.