Core-shell structured fiber textile with both optical performance and mechanical robustness and a preparation method thereof

Core-shell structured fiber textiles prepared by coaxial electrospinning have a flexible core layer and a rigid shell layer cross-linked by hydrogen bonds, which solves the contradiction between the optical properties and mechanical robustness of radiation-cooled textiles. This achieves efficient radiation cooling, mechanical stability, and lightweight breathability, making them suitable for complex environments.

CN122189944APending Publication Date: 2026-06-12NAT UNIV OF DEFENSE TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NAT UNIV OF DEFENSE TECH
Filing Date
2026-03-26
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing radiation-cooled textiles present a contradiction between optical performance and mechanical robustness, as well as lightweight and breathable properties. Furthermore, their reliance on inorganic fillers leads to structural failure and poor environmental stability.

Method used

Filler-free core-shell structured fiber textiles were prepared using coaxial electrospinning technology. The flexible core layer and rigid shell layer were cross-linked by hydrogen bonds, simulating the stress transfer mechanism of spider silk, forming a hydrogen bond network to transfer and dissipate stress, thereby achieving synergistic enhancement of optical properties and mechanical toughness.

Benefits of technology

At extremely thin thicknesses, textiles achieve ultra-high solar reflectivity, excellent mechanical stability, and self-healing capabilities, maintaining stable optical and mechanical properties and adapting to large-scale deformation and harsh environments.

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Abstract

The present application belongs to the technical field of functional textiles, and discloses a core-shell structure fiber textile with optical performance and mechanical robustness and a preparation method thereof. The textile is a film composed of composite fibers, with a thickness of 50-250 microns and no inorganic fillers; the composite fibers are prepared by coaxial electrospinning and have a core-shell structure, wherein the core layer contains a flexible polymer and the shell layer contains a rigid polymer; an interface cross-linking is formed between the core layer and the shell layer through hydrogen bonds. The present application realizes the synergistic enhancement of ultrahigh solar reflectance and excellent mechanical robustness of electrospun non-woven fabrics in the field of radiative cooling, and the optical and mechanical properties remain stable even after severe washing and exposure to harsh conditions. The prepared textile not only has excellent cooling performance, but also has the advantages of extremely thin thickness, high elasticity, high strength, excellent fatigue resistance, self-repairing ability, environmental stability, and good air and moisture permeability and liquid repellency, with excellent comprehensive performance.
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Citation Information

Patent Citations

  • CN119777072A

  • CN121023750A

  • CN121110216A