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Researchers developed a core-sheath yarn (CSY) from wool fibers to eliminate static electricity and generate triboelectric energy. This innovative textile offers a sustainable solution for clothing comfort and wearable power sources.

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Area of Science:

  • Textile Engineering
  • Materials Science
  • Energy Harvesting

Background:

  • Wool fibers in clothing generate static electricity, causing discomfort and safety issues.
  • Developing effective anti-static solutions for wool textiles remains a significant industry challenge.

Purpose of the Study:

  • To introduce a core-sheath yarn (CSY) for wool to convert static electricity into usable energy.
  • To create a functional textile with both anti-static properties and energy-harvesting capabilities.

Main Methods:

  • Large-scale production of CSY using wrap spinning technology.
  • Knitting CSY into a fabric (CSYF) for comprehensive property evaluation.
  • Assessing static elimination, energy conversion efficiency, flexibility, and power output.

Main Results:

  • CSYF achieved a rapid static elimination half-life of approximately 0.21 seconds.
  • Demonstrated efficient energy conversion with high voltage (≈430 V) and current (≈2.7 µA).
  • Exhibited excellent flexibility (≈200% stretchability) and high output power (≈740 mW m⁻²).

Conclusions:

  • The developed CSYF offers a dual benefit of static elimination and triboelectric energy generation.
  • This innovation presents a sustainable approach for utilizing wool's static properties.
  • CSYF shows potential for applications in self-powered devices and wearable electronics.