Issue 65, 2019, Issue in Progress

Preparation and microwave absorption performance of a flexible Fe3O4/nanocarbon hybrid buckypaper and its application in composite materials

Abstract

Graphene oxide (GO) and carbon nanotubes are promising microwave-absorbing materials. Herein, ferroferric oxide (Fe3O4)/multiwall carbon nanotube (MWCNT) and Fe3O4/GO hybrid buckypapers with excellent flexibility and manoeuvrability were coated on the surface of an epoxy substrate to fabricate microwave-absorbing composites. Fe3O4/GO buckypapers show a unique layered structure that differs from the complex network structure of Fe3O4/MWCNT buckypapers. Therefore, the Fe3O4/GO buckypapers exhibit lower tensile strength and toughness than the Fe3O4/MWCNT buckypapers, and the minimum electromagnetic reflection loss of Fe3O4/GO buckypapers is higher than that of Fe3O4/MWCNT buckypapers. Further, Fe3O4/GO buckypapers have a wider effective absorption-frequency band than Fe3O4/MWCNT buckypapers at 2.0–18.0 GHz. Although the mechanical properties of epoxy resin composites coated with Fe3O4/MWCNT or Fe3O4/GO buckypapers show a slight deterioration in comparison with those of the epoxy resin substrate, both buckypapers exhibit improved microwave-absorption performance compared with the epoxy resin substrate.

Graphical abstract: Preparation and microwave absorption performance of a flexible Fe3O4/nanocarbon hybrid buckypaper and its application in composite materials

Supplementary files

Article information

Article type
Paper
Submitted
14 Sep 2019
Accepted
11 Nov 2019
First published
21 Nov 2019
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2019,9, 37870-37881

Preparation and microwave absorption performance of a flexible Fe3O4/nanocarbon hybrid buckypaper and its application in composite materials

J. Wang, J. Jiao, G. Sun, K. Yuan, Z. Guan and X. Wei, RSC Adv., 2019, 9, 37870 DOI: 10.1039/C9RA07406F

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