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Synthesis, UV-shielding and electromagnetic wave absorbing properties of polyvinylpyrrolidone-\(\hbox {TiO}_{2}\)/polyacrylonitrile-\(\hbox {SiO}_{2}\) nanofibre nanocomposites

  • Omolfajr NakhaeiEmail author
  • Nasser Shahtahmassebi
  • Mahmood Rezaee Roknabadi
  • Mohammad Behdani
Article
  • 6 Downloads

Abstract

This paper reports electromagnetic interference (EMI) shielding effectiveness (SE) and UV-shielding performance of polyvinylpyrrolidone (PVP)–\(\hbox {TiO}_{2}\)/polyacrylonitrile (PAN)–\(\hbox {SiO}_{2}\) nanofibre nanocomposites synthesized via the single nozzle co-electrospinning method. Herein, three samples with different average diameters were fabricated using 0.3, 0.4 and 0.5 ml h\(^{-1}\) flow rates during the electrospinning process. Morphological characterization confirmed that a core–shell structure of nanofibre nanocomposites was formed successfully. The EMI SE of the as-prepared nanofibre nanocomposites was studied using a vector network analyser over the full X-band (8–12 GHz) frequency at room temperature. The experimental results demonstrate excellent microwave absorption properties for all samples. PVP–\(\hbox {TiO}_{2}\)/PAN–\(\hbox {SiO}_{2}\) nanofibres with 596.67 nm average diameter show maximum total EMI (110 dB at about 9 GHz) and 98% UV-shielding performance.

Keywords

Nanocomposites carbon nanofibres polymers electrospinning electromagnetic shielding properties. 

Notes

Acknowledgements

The authors truly appreciate Dr Mehdi Forouzanfar, Dr Javad Baseri and Dr Mojtaba Joodaki for their help in EMI shielding measurements performed at RF research Lab of the Department of Electrical Engineering at Ferdowsi University of Mashhad.

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Copyright information

© Indian Academy of Sciences 2019

Authors and Affiliations

  • Omolfajr Nakhaei
    • 1
    • 2
    Email author
  • Nasser Shahtahmassebi
    • 1
    • 2
  • Mahmood Rezaee Roknabadi
    • 1
  • Mohammad Behdani
    • 1
  1. 1.Department of PhysicsFerdowsi University of MashhadMashhadIran
  2. 2.Nano Research CenterFerdowsi University of MashhadMashhadIran

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