Fabrication and characterization of PVC based flexible nanocomposites for the shielding against EMI, NIR, and thermal imaging signals
Polypyrrole (PPy) and barium hexaferrite (BaFe) were prepared successfully by chemical polymerization and co-precipitation method, respectively. Nanocomposites based on polyvinyl chloride (PVC) matrix with different compositions of PPy and BaFe were fabricated by solution casting method with 0.5 mm...
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doaj-34287071ea564190b690947c67e407752021-05-06T04:24:12ZengElsevierResults in Physics2211-37972021-05-0124104183Fabrication and characterization of PVC based flexible nanocomposites for the shielding against EMI, NIR, and thermal imaging signalsSabahat Siddique0Muhammad Zahid1Rukhsar Anum2HM Fayzan Shakir3Z.A. Rehan4Department of Chemistry, University of Agriculture, Faisalabad, PakistanDepartment of Chemistry, University of Agriculture, Faisalabad, PakistanDepartment of Chemistry, University of Agriculture, Faisalabad, PakistanDepartment of Materials, School of Engineering and Technology, National Textile University, Faisalabad, Pakistan; Corresponding authors.Department of Materials, School of Engineering and Technology, National Textile University, Faisalabad, Pakistan; Corresponding authors.Polypyrrole (PPy) and barium hexaferrite (BaFe) were prepared successfully by chemical polymerization and co-precipitation method, respectively. Nanocomposites based on polyvinyl chloride (PVC) matrix with different compositions of PPy and BaFe were fabricated by solution casting method with 0.5 mm film thickness. The key application of these nanocomposites is the electromagnetic interference (EMI) shielding in microwave frequency (0.1 GHz-20 GHz) and infrared (IR) shielding in near-infrared (NIR) wavelength (700–2500 nm). The PPy effect on electrical conductivity was measured and the results showed an increase in electrical conductivity by increasing the PPy content while BaFe as electrically insulative has a negligible effect on electrical conductivity. Less than 0.2% transmission was observed in the NIR region and a maximum SE of 88.5 dB was achieved with absorption dominant mechanism. The main reason for enhanced EMI SE of nanocomposites is dispersion state, fillers interaction with the polymer matrix, and fillers nature.http://www.sciencedirect.com/science/article/pii/S2211379721003314EMI shieldingIR ShieldingPolypyrroleNanocompositesBarium HexaferritesPVC |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Sabahat Siddique Muhammad Zahid Rukhsar Anum HM Fayzan Shakir Z.A. Rehan |
spellingShingle |
Sabahat Siddique Muhammad Zahid Rukhsar Anum HM Fayzan Shakir Z.A. Rehan Fabrication and characterization of PVC based flexible nanocomposites for the shielding against EMI, NIR, and thermal imaging signals Results in Physics EMI shielding IR Shielding Polypyrrole Nanocomposites Barium Hexaferrites PVC |
author_facet |
Sabahat Siddique Muhammad Zahid Rukhsar Anum HM Fayzan Shakir Z.A. Rehan |
author_sort |
Sabahat Siddique |
title |
Fabrication and characterization of PVC based flexible nanocomposites for the shielding against EMI, NIR, and thermal imaging signals |
title_short |
Fabrication and characterization of PVC based flexible nanocomposites for the shielding against EMI, NIR, and thermal imaging signals |
title_full |
Fabrication and characterization of PVC based flexible nanocomposites for the shielding against EMI, NIR, and thermal imaging signals |
title_fullStr |
Fabrication and characterization of PVC based flexible nanocomposites for the shielding against EMI, NIR, and thermal imaging signals |
title_full_unstemmed |
Fabrication and characterization of PVC based flexible nanocomposites for the shielding against EMI, NIR, and thermal imaging signals |
title_sort |
fabrication and characterization of pvc based flexible nanocomposites for the shielding against emi, nir, and thermal imaging signals |
publisher |
Elsevier |
series |
Results in Physics |
issn |
2211-3797 |
publishDate |
2021-05-01 |
description |
Polypyrrole (PPy) and barium hexaferrite (BaFe) were prepared successfully by chemical polymerization and co-precipitation method, respectively. Nanocomposites based on polyvinyl chloride (PVC) matrix with different compositions of PPy and BaFe were fabricated by solution casting method with 0.5 mm film thickness. The key application of these nanocomposites is the electromagnetic interference (EMI) shielding in microwave frequency (0.1 GHz-20 GHz) and infrared (IR) shielding in near-infrared (NIR) wavelength (700–2500 nm). The PPy effect on electrical conductivity was measured and the results showed an increase in electrical conductivity by increasing the PPy content while BaFe as electrically insulative has a negligible effect on electrical conductivity. Less than 0.2% transmission was observed in the NIR region and a maximum SE of 88.5 dB was achieved with absorption dominant mechanism. The main reason for enhanced EMI SE of nanocomposites is dispersion state, fillers interaction with the polymer matrix, and fillers nature. |
topic |
EMI shielding IR Shielding Polypyrrole Nanocomposites Barium Hexaferrites PVC |
url |
http://www.sciencedirect.com/science/article/pii/S2211379721003314 |
work_keys_str_mv |
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