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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Lightweight multi-walled carbon nanotube buckypaper/glass fiber-epoxy composites for strong electromagnetic interference shielding and efficient microwave absorption

Full text
Author(s):
Ribeiro, Bruno [1] ; Santos Gomes, Newton Adriano [1] ; Rezende, Mirabel Cerqueira [1]
Total Authors: 3
Affiliation:
[1] Univ Fed Sao Paulo UNIFESP, Inst Ciencia & Tecnol, Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS; v. 32, n. 11, p. 14494-14508, JUN 2021.
Web of Science Citations: 0
Abstract

Multi-walled carbon nanotube buckypaper (BP) reinforced glass fiber-epoxy (GF/EP) composites were selected to fabricate electromagnetic interference (EMI) shielding and microwave absorbing materials. Six different composite configurations with 3.0 mm thick have been conceived and tested over the X-band (8.2-12.4 GHz). Flexible and low-density (0.29 g/cm(3)) BP provided a high specific EMI SE of 76 dB with controlled electrical conductivity. GF/EP/BP111 and GF/EP/BP101 composites possess EMI SE as high as of 50-60 dB, which can be attributed to the number of BP inserted and variation in the wave-transmitting layer of the laminates. Furthermore, the shielding mechanism was discussed and suggested that the absorption was the dominant contribution to EMI SE. GF/EP/BP110 laminate demonstrated suitable EMI performance (similar to 20 dB), whereas GF/EP/BP011 composite revealed excellent microwave performance, achieving an effective - 10 dB bandwidth of 3.04 GHz and minimum reflection loss (RL) value of - 21.16 dB at 10.37 GHz. On the basis of these results, GF/EP/BP composites prepared in this work have potential applications as both EMI shielding and microwave absorber materials given their facile preparation and lightweight use. (AU)

FAPESP's process: 18/09531-2 - DEVELOPMENT OF MULTIFUNCTIONAL NANOESTRUCTURED GREEN COMPOSITES BASED ON POLY(FURFURYL ALCOHOL)/GRAFITE NANOSHEETS FOR AEROSPACE APPLICATIONS
Grantee:Mirabel Cerqueira Rezende
Support Opportunities: Regular Research Grants
FAPESP's process: 17/04740-0 - PREPARATION AND CHARACTERIZATION OF MULTIFUNCTIONAL NANOSTRUCTURED COMPOSITES BASED ON GLASS FIBER/EPOXI RESIN/CARBON NANOTUBE BUCKYPAPER LAMINATE
Grantee:Bruno Ribeiro
Support Opportunities: Scholarships in Brazil - Post-Doctoral