One-Step Synthesis of Polar-Bear-Hair-Inspired Nanofibers for Multimodal Thermal Regulation; ACS Nano; Vol. 20, iss. 15

One-Step Synthesis of Polar-Bear-Hair-Inspired Nanofibers for Multimodal Thermal Regulation; ACS Nano; Vol. 20, iss. 15

Bibliografische gegevens
Parent link:ACS Nano.— .— Washington: ACS Publications
Vol. 20, iss. 15.— 2026.— P. 11908–11920
Andere auteurs: Fengjin Yang, Sai Wang, Ping Gao, Surmenev R. A. Roman Anatolievich, Chenhao Li, Xiaoyan Liu, Jianyong Yu, Yi-Tao Liu, Bin Ding
Samenvatting:Title screen
High-performance thermal regulators are essential for human survival in cold environments. However, conventional fibrous materials suffer from large diameters and low porosity, resulting in heavy weight and limited insulation. While aerogels are renowned for their low density and high porosity, their brittleness and poor mechanical properties severely hinder practical application. Herein, a porous-core/dense-shell nanofiber inspired by polar bear hair is engineered for multimodal thermal regulation via coaxial electrospinning based on fast-slow phase separation. Controlling polymer–solvent–water interactions within the coaxial jet induces rapid phase separation in the core and delayed phase separation in the shell, yielding porous-core/dense-shell nanofibers that self-assemble into aerogels (CSNA). The core/shell nanofibers and bonding networks endow CSNA with mechanical robustness, withstanding 20,000 times its weight without fracture. Meanwhile, the polar-bear-hair-inspired structure, featuring nanoscale fiber diameter, small pore size, and high porosity, synergistically achieves an ultralight density (5.5 mg cm–3) and low thermal conductivity (26.45 mW m–1 K–1), enabling warmth retention that matches down at one-third the thickness. Furthermore, carbon-black-doped CSNA exhibits efficient Joule heating and photothermal conversion, enabling on-demand switching between passive and active warming modes under cold conditions. This strategy offers a promising approach for fabricating high-strength nanofibrous aerogels, showing great potential for next-generation thermal-regulation textiles
Taal:Engels
Gepubliceerd in: 2026
Onderwerpen:
труды учёных ТПУ
электронный ресурс
one-step synthesis
biomimetic nanofibers
nanofibrous aerogels
porous-core/dense-shell structure
multimodal thermal regulation
Online toegang:https://doi.org/10.1021/acsnano.6c01278
Formaat: Elektronisch Hoofdstuk
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=687879

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