Nanoporous aerogel fibers enjoy the luxury of being one of the most attractive nanomaterials. However, the representative fabrication pathways have faced up with low production rates due to significant speed mismatch between slow sol–gel transition and as fast as possible spinning in the same period. Herein, a novel gas‐blows‐liquid spinning (GS) strategy with a spinning speed of 300–700 m s−1 is developed to get the high‐speed and high‐efficiency production of aerogel fibers/fabrics. The spinning speed of the GS strategy is 900 times higher than various techniques reported for aerogel fibers. The resulting aerogel fibers exhibit a high specific surface area (180 m2 g−1). In comparison, the aerogel fiber possesses the highest tensile strength (58.7±3.9 MPa) among its counterparts and aerogel fabric with surprising water‐absorption and microparticle‐blocking performances exhibits the application prospect for better hemostasis than that of commercial gauze and cotton ball. Besides, the GS aerogel fabrics with hierarchical aligned structures show better thermal insulation (≈0.035 Wm−1K−1) than wet spinning aerogel fabric and commercial insulation felts. This work has provided inspiration for fast fabricating more aerogel fibers/fabrics with this GS strategy, and the resulting aerogel fibers/fabrics may find significant application in the fields of 5G smart phones, wound hemostasis, etc.

中文翻译：

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气吹液纺丝策略实现机械强度高、热防护、高效止血的气凝胶纤维/织物

纳米多孔气凝胶纤维是最具吸引力的纳米材料之一。然而，由于缓慢的溶胶-凝胶转变和同一时期尽可能快的旋转之间的速度显着不匹配，代表性的制造途径面临着低生产率。本文提出了一种新型气吹液纺丝 (GS) 策略，纺丝速度为 300–700 ms−1旨在实现气凝胶纤维/织物的高速、高效生产。 GS策略的纺丝速度比报道的气凝胶纤维的各种技术高900倍。所得气凝胶纤维表现出高比表面积（180 m2G−1）。相比之下，气凝胶纤维具有同类产品中最高的拉伸强度（58.7±3.9 MPa），气凝胶织物具有令人惊讶的吸水和微粒阻挡性能，展现出比商用纱布和棉球更好的止血应用前景。此外，具有分层排列结构的GS气凝胶织物表现出更好的隔热性能（≈0.035 Wm）−1K−1）优于湿纺气凝胶织物和商用隔热毡。这项工作为利用这种GS策略快速制造更多气凝胶纤维/织物提供了灵感，所得气凝胶纤维/织物可能在5G智能手机、伤口止血等领域有重要应用。