Volume 219, Issue 15 2100516
Research Article

Design of Electromagnetic Shielding Textiles Based on Industrial-Grade Multiwalled Carbon Nanotubes and Graphene Nanoplatelets by Dip-Pad-Dry Process

Ana R. Sousa

Ana R. Sousa

IFIMUP - Institute of Physics for Advanced Materials, Nanotechnology and Photonics, Physics and Astronomy Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal

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Renata Matos

Renata Matos

REQUIMTE/LAQV, Chemistry and Biochemistry Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal

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José R. M. Barbosa

José R. M. Barbosa

LSRE-LCM, Laboratory of Separation and Reaction Engineering – Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal

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João Ferreira

João Ferreira

CITEVE – Technological Centre for the Textile and Clothing Industry of Portugal, Rua Fernando Mesquita, 2785, 4760-034 Vila Nova de Famalicão, Portugal

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Gilda Santos

Gilda Santos

CITEVE – Technological Centre for the Textile and Clothing Industry of Portugal, Rua Fernando Mesquita, 2785, 4760-034 Vila Nova de Famalicão, Portugal

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Augusta Silva

Augusta Silva

CITEVE – Technological Centre for the Textile and Clothing Industry of Portugal, Rua Fernando Mesquita, 2785, 4760-034 Vila Nova de Famalicão, Portugal

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José Morgado

José Morgado

CITEVE – Technological Centre for the Textile and Clothing Industry of Portugal, Rua Fernando Mesquita, 2785, 4760-034 Vila Nova de Famalicão, Portugal

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Patrícia Soares

Patrícia Soares

Cottonanswer, Rua dos Combatentes do Ultramar, 50, 4750-047 Lijó, Barcelos, Portugal

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Sergey A. Bunyaev

Sergey A. Bunyaev

IFIMUP - Institute of Physics for Advanced Materials, Nanotechnology and Photonics, Physics and Astronomy Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal

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Gleb N. Kakazei

Gleb N. Kakazei

IFIMUP - Institute of Physics for Advanced Materials, Nanotechnology and Photonics, Physics and Astronomy Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal

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Rui Vilarinho

Rui Vilarinho

IFIMUP - Institute of Physics for Advanced Materials, Nanotechnology and Photonics, Physics and Astronomy Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal

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Olívia Salomé Soares

Olívia Salomé Soares

LSRE-LCM, Laboratory of Separation and Reaction Engineering – Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal

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Manuel Fernando Pereira

Manuel Fernando Pereira

LSRE-LCM, Laboratory of Separation and Reaction Engineering – Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal

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Cristina Freire

Cristina Freire

REQUIMTE/LAQV, Chemistry and Biochemistry Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal

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Clara Pereira

Corresponding Author

Clara Pereira

REQUIMTE/LAQV, Chemistry and Biochemistry Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal

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André M. Pereira

Corresponding Author

André M. Pereira

IFIMUP - Institute of Physics for Advanced Materials, Nanotechnology and Photonics, Physics and Astronomy Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal

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First published: 29 November 2021
Citations: 4

Abstract

Textile-based shields are one of the most used solutions for electromagnetic interference (EMI) shielding in the radiofrequency range for several applications, such as personal protection, military, and aircraft. Herein, EMI textile shields are produced based on knitted cotton textile substrates (Jersey and American Fleece) coated with industrial-grade multiwalled carbon nanotubes (MWCNTs) and graphene nanoplatelets (GNPs). An easy and scalable dip-pad-dry process is used to fabricate the textile-based shields. The shielding effectiveness (SE) is evaluated over the frequency range of 5.85–18 GHz. The MWCNT-coated American Fleece fabric presents the highest EMI shielding, with an average SE of ≈35.6 dB, which corresponds to an excellent classification for general use applications. Additionally, the electrical properties of the carbon nanomaterials and the thickness of the shields reveal to be correlated with an EMI shielding process mostly through radiation absorption mechanism. Numerical simulations are used to further assist in a thorough investigation regarding the influence of the electrical properties of the nanomaterials on the SE of the resulting coated fabrics.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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