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

• Type: Article in International Scientific Journal
• Date: 2022

Authors

Sousa, AR (Author) Other; Matos, R (Author) Other; Barbosa, JRM (Author) Other; Gomes, JANF (Author) FCUP; Santos, G (Author) Other; Silva, A (Author) Other; Morgado, J (Author) Other; Soares, P (Author) FCUP; Bunyaev, SA (Author) Other; G.N. Kakazei (Author) FCUP; Vilarinho, R (Author) Other; Susana Soares (Author) FCUP; Manuel Fernando R Pereira (Author) FEUP; Cristina Freire (Author) FCUP; Clara Pereira (Author) FCUP; pereira, a. m. (Author) FCUP

Journal

Title: Physica Status Solidi (A) Applications and Materials

Vol. 219

ISSN: 1862-6300

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 2 Citations

Other information

Authenticus ID: P-00V-ZV6

DOI: 10.1002/pssa.202100516

Abstract (EN): 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 approximate to 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11