Nanomaterials (Oct 2020)

EMI Shielding of the Hydrophobic, Flexible, Lightweight Carbonless Nano-Plate Composites

  • Kanthasamy Raagulan,
  • Jin Soo Ghim,
  • Ramanaskanda Braveenth,
  • Moon Jai Jung,
  • Sang Bok Lee,
  • Kyu Yun Chai,
  • Bo Mi Kim,
  • Joonsik Lee

DOI
https://doi.org/10.3390/nano10102086
Journal volume & issue
Vol. 10, no. 10
p. 2086

Abstract

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The cost-effective spray coated composite was successfully synthesis and characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, and X-ray diffraction techniques. The one step synthetic strategy was used for the synthesis of nanoplates that have a crystalline nature. The composites are amorphous and hydrophobic with micron thickness (−1, spreading coefficient −122.12 mN m−1, and work of adhesion 23.48 mN m−1. The minimum thickness of synthesized nanoplate is 3 nm while the maximum sheet resistance, resistivity, and electrical conductivity of the composites are 11.890 ohm sq−1, 0.4399 Ω.cm−1, and 8.967 S.cm−1, respectively. The cobalt nanoplate coated non-woven carbon fabric (CoFC) possesses excellent sheet resistance, hydrophobic nature, and EMI shielding efficiency of 99.99964%. The composite can block above 99.9913% of incident radiation (X band). Hence, the composite can be utilized in application areas such as medical clothes, mobile phones, automobiles, aerospace, and military equipment.

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