Conductive polymer nanocomposite incorporated with carbon nanotubes for effective electromagnetic interference shielding: A numerical study
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Published:2023-12-13
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Volume:
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ISSN:0272-8397
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Container-title:Polymer Composites
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language:en
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Short-container-title:Polymer Composites
Author:
Dubey Prakhar1,
Gupta Madhur1ORCID,
Kundalwal S. I.1ORCID
Affiliation:
1. Applied and Theoretical Mechanics (ATOM) Laboratory, Department of Mechanical Engineering Indian Institute of Technology Indore Indore India
Abstract
AbstractThis study presents a comprehensive numerical investigation of the electromagnetic interference (EMI) shielding capabilities of a conductive polymer nanocomposite incorporated with carbon nanotubes (CPNC) in the X‐band. The investigation is conducted using a commercial finite element simulation package, Ansys HFSS. The study focuses on analyzing the EMI shielding effectiveness (SE) of CPNC by varying the weight percent (wt%) of carbon nanotubes (CNTs), thickness, and shape of the shielding material. Our outcomes show that the EMI SE of CPNC increases with the wt% of CNTs. Notably, a maximum EMI SE is observed around ~90 dB due to absorption (SEA) at a 4 mm pallet‐shaped CPNC and ~180 dB for a hollow cylindrical CPNC (22.86 mm outer diameter and 3 mm thickness) with 2 wt% of CNT. The EMI SE due to absorption (SEA) at a pallet thickness of 4 mm exhibits a significant improvement of ~107% compared to the SEA observed at a thickness of 1 mm. These findings highlight the exceptional absorption capabilities and lightweight nature of CPNC, rendering it a promising shielding material for aerospace and satellite communication applications.Highlights
EMI SE of CPNC increases with the wt% of CNT in the polypyrrole (PPy) matrix.
The percolation threshold is observed at a low 2 wt% concentration of CNT.
Thickness of the shielding material influences the EMI SE of CPNC.
CPNC provides absorption‐dominated shielding.
Funder
Indian Space Research Organisation
Indian Institute of Technology Indore
Subject
Materials Chemistry,Polymers and Plastics,General Chemistry,Ceramics and Composites
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