Hierarchical structured epoxy/reduced graphene oxide/Ni-chains microcellular composite foam for high-performance electromagnetic interference shielding

Ultra‐Low Loading of Ultra‐Small Fe3O4 Nanoparticles on Nonmodified CNTs to Improve Green EMI Shielding Capability of Rubber Composites

“…Gratifyingly, the 0.5 mm thick 1‐MC 11.1 /NR composite film exhibited a super high SSE (531 dB cm −1 ) and a low R value (0.24), which implies an outstanding green‐shielding property. Importantly, compared with previously reported CNT/polymer, [ 29 ] graphene/polymer, [ 38 ] carbon black/polymer, [ 39 ] and magnetic particle/polymer composites, [ 40 ] such as carbon black‐CNT/isoprene rubber (SSE = 330 dB cm −1 ; R = 0.5) [ 41 ] and Fe 3 O 4 /reduced graphene oxide/PU (SSE = 55 dB cm −1 ; R = 0.9), [ 42 ] our materials are more adaptable and can be applied in green shielding.…”

Advancements in 3D-printed architectures for electromagnetic interference shields

“…28–33 As research progressed, it became increasingly evident to scholars that beyond the inherent properties of electromagnetic shielding materials, the optimization of the structural aspects of electromagnetic shields could substantially enhance their electromagnetic shielding performance. This changes the structural design of electromagnetic shields from a flat structure to a simple three-dimensional structure and then to a complex three-dimensional structure 34–37 via hydrothermal methods, 38 foaming methods, 39 or freeze-drying methods. 40 Unfortunately, traditional preparation methods can no longer meet the requirements of a complex structure; thus, the introduction of a novel electromagnetic shield preparation methodology has become imperative.…”

Lightweight, Highly Efficient, and Recyclable Absorption-Dominated Electromagnetic Interference Shielding Foams Based on Molecularly Designed Polyamide Elastomer/Carbon Nanotube Nanocomposites

“…As a rapidly expanding field of research, EMI shielding composite foam systems fabricated using sc-CO 2 still require considerable improvement, especially in terms of the effective integration of the matrix material and foaming process, which strongly dominates the overall performance of foam products. − Despite their excellent mechanical and foaming properties, few studies have explored the use of thermoplastic polyamide elastomers as matrix candidates. − Wang et al used biaxial-stretching-assisted sc-CO 2 microcellular foaming to fabricate flexible and conductive polyether block amide (PEBA)/multi-walled carbon nanotube (MWCNT) composite foams. The composite foams had superior electrical and EMI shielding properties compared with unformed materials .…”