Continuous Fabrication of Bioinspired All-Biomass Aerogel Fibers for Thermal Insulation

IF 36.3 1区材料科学 Q1 Engineering

Nano-Micro Letters Pub Date : 2026-08-10 DOI:10.1007/s40820-026-02332-3

Meiling Zhou, Qiaoling Xue, Lulu Fu, Beini Zeng, Shengnan Ouyang, Shouwei Zhang, Jinming Zhang, Qingtao Liu, Xungai Wang, Jinfeng Wang

引用次数: 0

Abstract

Highlights

A scalable continuous method was established for fabricating all-biomass aerogel fibers.
Hydrogen-bond-driven cellulose shrinkage and alcohol-cured silk fibroin collaboratively enabled the formation of a core-shell aerogel fiber with aligned lamellar pores in the core.
The hierarchical aerogel fibers exhibit low thermal conductivity (52.4 ± 4.2 mW m⁻¹ K⁻¹), low density (0.193 ± 0.01 g cm⁻³), excellent mechanical flexibility, wash stability, and effective thermal protection.

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保温用全生物质气凝胶纤维的连续制备。

气凝胶纤维由于其高孔隙率和低导热性而被认为是一种很有前途的热防护纺织品解决方案。然而，可持续和机械强度的气凝胶纤维的规模化生产仍然是一个关键的挑战。在这里，受北极熊毛发多孔核壳结构的启发，我们报告了一种连续的策略，以丝素蛋白为核心，纤维素为外壳，制造具有封装核壳结构的全生物质气凝胶纤维。这种可调节的结构，具有径向排列的片状孔隙和可调节的外壳厚度，是通过氢键驱动的纤维素收缩和酒精诱导的片状丝素固化来实现的。这种多孔结构有效地抑制了对流换热，促进了红外辐射的多重反射效应。所得纤维表现出良好的机械坚固性，单个气凝胶纤维的拉伸载荷高达200g而不加筋。同时，气凝胶纤维保持了高孔隙率（79.78%）、低导热系数（52.4±4.2 mW m-1 K-1）和低密度（0.193±0.01 g cm-3）。此外，由这些纤维制成的气凝胶手套具有良好的隔热性能。这些结果为设计具有核壳结构的仿生气凝胶纤维提供了新的见解，为先进的可穿戴热管理提供了可扩展和环保的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nano-Micro Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

32.60

自引率

4.90%

发文量

981

审稿时长

1.1 months

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary, and open-access journal published under the SpringerOpen brand. Nano-Micro Letters focuses on the science, experiments, engineering, technologies, and applications of nano- or microscale structures and systems in various fields such as physics, chemistry, biology, material science, and pharmacy.It also explores the expanding interfaces between these fields. Nano-Micro Letters particularly emphasizes the bottom-up approach in the length scale from nano to micro. This approach is crucial for achieving industrial applications in nanotechnology, as it involves the assembly, modification, and control of nanostructures on a microscale.