Polymer-Assisted Fabrication of Silver Nanowire Cellular Monoliths: Towards Hydrophobic and Ultraflexible High-Performance Electromagnetic Interference Shielding Materials
Online Publication Date2020-08-03
Print Publication Date2020-08-26
Embargo End Date2021-08-03
Permanent link to this recordhttp://hdl.handle.net/10754/664591
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AbstractMetal nanofibers with excellent electrical conductivity and superior mechanical flexibility have great potentials for fabrication of lightweight, flexible and high-performance electromagnetic interference (EMI) shielding architectures. The weak interactions and large contact resistance among the wires, however, hinder their assembly into robust and high-performance EMI shielding monoliths. In this work, we used low fractions of polymers to assist the construction of lightweight, flexible, and highly conductive silver nanowire (AgNW) cellular monoliths with significantly enhanced mechanical strength and EMI shielding effectiveness (SE). The normalized surface specific SE of our AgNW-based cellular monoliths can reach up to 20522 dB·cm2/g, outracing that of most shielding materials ever reported. Moreover, this robust conductive framework enabled the successful fabrication of hydrophobic, ultraflexible and highly stretchable aerogel/polymer composites with outstanding EMI SE even at an extremely low AgNW content. Thus, this work demonstrated a facile and efficient strategy for assembling metal nanofiber-based functional high-performance EMI shielding architectures.
CitationZeng, Z., Li, W., Wu, N., Zhao, S., & Lu, X. (2020). Polymer-Assisted Fabrication of Silver Nanowire Cellular Monoliths: Towards Hydrophobic and Ultraflexible High-Performance Electromagnetic Interference Shielding Materials. ACS Applied Materials & Interfaces. doi:10.1021/acsami.0c10492
SponsorsZ.Z. and X.L. thank Nanyang Technological University, Singapore, for providing funding in the course of this work. Z.Z. and W.L. contributed equally to this work.
PublisherAmerican Chemical Society (ACS)