Enhanced EMI shielding performance of CNT incorporated PVDF/ZnO and PVDF/BaTiO3 nanocomposites

The demand for electromagnetic interference (EMI) shielding applications emphasizes the importance of lightweight and flexible materials that possess low thickness along with high conductivity. Flexible lightweight films were fabricated using hybrid polymer nanocomposites composed of polyvinylidene...

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Bibliographic Details
Main Authors: Joshi, Rita, Yadav, Siddharth, Lahiri, Indranil
Format: Conference Proceeding
Language:English
Subjects:
Barium titanates
Carbon nanotubes
Electromagnetic interference
Electromagnetic shielding
Fillers
Frequency ranges
Lightweight
Nanocomposites
Polyvinylidene fluorides
Superhigh frequencies
Thickness
Weight reduction
Zinc oxide
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Summary:The demand for electromagnetic interference (EMI) shielding applications emphasizes the importance of lightweight and flexible materials that possess low thickness along with high conductivity. Flexible lightweight films were fabricated using hybrid polymer nanocomposites composed of polyvinylidene fluoride (PVDF) as the matrix material, carbon nanotubes (CNTs) as the primary conductive filler, and either Zinc Oxide (ZnO) or Barium Titanate (BaTiO3) as the secondary fillers. This paper discusses the preparation methods of nanocomposites, their morphological, and structural studies, and concludes with a study on EMI shielding in the X band frequency range (8-12 GHz) in a brief. The maximum EMI shielding effectiveness (SE) of around 12 dB is obtained for the PVDF/BaTiO3/CNT nanocomposite having a thickness of 0.5 mm. Given their better EMI shielding capabilities, the nanocomposites demonstrate significant potential for applications in modern day electronics and flexible devices.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0216734