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A High Temperature Resistant and Sewable Aromatic Multiscale Fiber for Rapid Identification in Fire Rescue.

Junyao Guo1, Yuanyuan Shang1,2,3, Hao Zhang1

  • 1Shandong Key Laboratory of Medical and Health Textile Materials, Collaborative Innovation Center for Eco-textiles of Shandong Province and the Ministry of Education, Research Center for Intelligent and Wearable Technology, College of Textiles & Clothing, Qingdao University, Qingdao 266071, China.

Nano Letters
|April 4, 2025
PubMed
Summary
This summary is machine-generated.

Researchers developed high-temperature resistant, long-lasting luminescent fibers using microfluidic wet-spinning. These fibers offer excellent flame retardancy and sewability, suitable for fire rescue applications.

Keywords:
high temperature warning fabriclong persistent luminescence luminescent fibermicrofluidicssheath−core fiberwet-spinning

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Area of Science:

  • Materials Science
  • Photonic Materials
  • Textile Engineering

Background:

  • High temperature resistant luminous fibers with extended glow duration and superior sewing properties are crucial for advanced applications.
  • Existing methods often struggle to meet the demands for continuous production and high performance.

Purpose of the Study:

  • To introduce a continuous manufacturing strategy for high temperature resistant and long persistent luminescent fibers.
  • To evaluate the performance characteristics of these novel luminescent fibers.

Main Methods:

  • Utilized microfluidic wet-spinning technology for continuous fiber fabrication.
  • Characterized luminescence duration, quantum yield, thermal stability, flame retardancy, and mechanical properties.

Main Results:

  • Fibers exhibit continuous luminescence for 3 hours with a quantum yield of 42.8%.
  • High luminescence intensity maintained at temperatures ranging from 50-200 °C.
  • Demonstrated excellent flame retardancy (limiting oxygen index near 30%) and a tensile strength of 18.9 MPa.
  • Confirmed good sewability for practical textile integration.

Conclusions:

  • The microfluidic wet-spinning strategy offers a viable method for producing high-performance, high-temperature resistant luminescent fibers.
  • These fibers show significant potential for wearable applications in demanding environments, such as fire rescue.
  • The developed process addresses the need for continuous, scalable manufacturing of functional luminescent textiles.