Issue 38, 2022

Time-difference blow-spinning to a flexible dual-scale multilayer fabric for highly efficient electromagnetic interference shielding

Abstract

A new kind of pollution known as electromagnetic interference (EMI) caused by the ubiquitous usage of integrated electronic devices and communication systems is attracting increasing attention. The design and mass-production of functional materials for large-scale, flexible, and curved surface EMI shielding remains a challenge. In this study, we have developed a time-difference blow-spinning technology to continuously fabricate multilayer polyacrylonitrile (MLPAN) nanofibers; on combining with roll-to-roll dip-coating post-processing, a flexible Ti3C2Tx/MLPAN hybrid fabric was obtained. It shows a special dual-scale multilayer structure, including a primary multilayer structure from MLPAN, and a secondary nanoscale multilayer structure from Ti3C2Tx. The hybrid fabric is lightweight (639.0 mg cm−3), with high conductivity (23327.40 S m−1) and good mechanical stability. Moreover, this hybrid fabric exhibits a remarkable EMI shielding property with a shielding efficiency of 61.8 dB, which is attributed to the synergistic effect of surface reflection, internal multiple scattering and multiple reflections.

Graphical abstract: Time-difference blow-spinning to a flexible dual-scale multilayer fabric for highly efficient electromagnetic interference shielding

Supplementary files

Article information

Article type
Paper
Submitted
17 jun. 2022
Accepted
11 ago. 2022
First published
12 ago. 2022

J. Mater. Chem. C, 2022,10, 14141-14150

Time-difference blow-spinning to a flexible dual-scale multilayer fabric for highly efficient electromagnetic interference shielding

W. Song, S. Hu, J. Lu, L. Su, Z. Li, J. Liu, Y. Wu, J. Song, Z. Liu, S. Xu and S. Lin, J. Mater. Chem. C, 2022, 10, 14141 DOI: 10.1039/D2TC02532A

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