Novel Nanoparticle Modification Strategy Enhances UV Protection and Mechanical Strength in Textiles

Strategic Insights -

Researchers from Soochow University have developed a two-step surface modification strategy to enhance the dispersion of titanium dioxide nanoparticles within polyacrylonitrile fibers. This innovative approach has resulted in textiles with improved UV shielding performance, mechanical strength, and antibacterial properties. The modified fibers have shown a remarkable increase in break tensile strength and elongation, making them suitable for high-performance applications.

Key Takeaways:

  • The two-step surface modification strategy, using ODA-KH570 and ECH-KH590, successfully enhanced the dispersion of TiO2 nanoparticles within PAN fibers.
  • Incorporating 1% ECH-KH590-TiO2/PAN fibers via wet spinning resulted in a significant improvement in mechanical properties, with break tensile strength reaching 7.49 MPa and elongation at 21.0%.
  • The modified fibers exhibited excellent UV shielding performance, with a UPF value of 45.21, and remarkable antibacterial properties, with E. coli and S. aureus inhibition rates of 92.57% and 90.77%, respectively.
  • The two-step modification strategy demonstrates its effectiveness in achieving superior dispersion and reinforcement, paving the way for the development of high-performance UV-protective textiles.
  • The researchers believe that this technology has potential for applications in multifunctional textiles.

Statistics:

  • Break tensile strength of modified ECH-KH590-TiO2/PAN fibers: 7.49 MPa
  • Elongation of modified ECH-KH590-TiO2/PAN fibers: 21.0%
  • UV shielding performance (UPF value): 45.21
  • E. coli inhibition rate: 92.57%
  • S. aureus inhibition rate: 90.77%

Sources:

  • NewsRx. Investigators at Soochow University Detail Findings in Nanoparticles (A Novel Two-step Modification of Tio 2 Nanoparticles for Pan Fibers With Enhanced Mechanical Strength, Uv Shielding and Antibacterial Properties). Nanotechnology Weekly. August 18, 2025; p 392.
  • Applied Surface Science. 2025;700.