Layered Structural PBAT Composite Foams for Efficient Electromagnetic Interference Shielding

Jianming Yang; Hu Wang; Yali Zhang; Hexin Zhang; Junwei Gu

doi:10.1007/s40820-023-01246-8

Nano-Micro Letters (Nov 2023)

Layered Structural PBAT Composite Foams for Efficient Electromagnetic Interference Shielding

Jianming Yang,
Hu Wang,
Yali Zhang,
Hexin Zhang,
Junwei Gu

Affiliations

Jianming Yang: School of Chemistry and Chemical Engineering, Anhui University of Technology
Hu Wang: School of Chemistry and Chemical Engineering, Anhui University of Technology
Yali Zhang: Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University
Hexin Zhang: School of Chemistry and Chemical Engineering, Anhui University of Technology
Junwei Gu: Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University

DOI: https://doi.org/10.1007/s40820-023-01246-8
Journal volume & issue: Vol. 16, no. 1
pp. 1 – 14

Abstract

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Highlights A layered segregated shielding network was organized in porous PBAT/Fe3O4@MWCNTs/Ag composite by scCO2 foaming and scraping techniques. The composite foam achieved an electromagnetic interference (EMI) shielding effectiveness (SE) of up to 68.0 dB and a reflectivity of as low as 23% due to the “absorption-reflection-re-absorption” shielding mechanism. The solid and foamed PBAT/Fe3O4@MWCNTs/Ag composites displayed superior retention (> 92%) of EMI SE even after peeling experiment of 500 times under 100 g weight pressure.

Published in Nano-Micro Letters

ISSN: 2311-6706 (Print); 2150-5551 (Online)
Publisher: SpringerOpen
Country of publisher: Germany
LCC subjects: Technology
Website: http://www.springer.com/40820

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