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    Epiphyte-inspired multifunctional biocomposites for electromagnetic interference shielding

    Year: 2023

    Journal: Chemical Engineering Journal, Volume 469, 2023-08-01, page 143960

    Authors: Hong, Gonghua; Qu, Qing; Rojas, Orlando J.; Li, Lei; Xie, Delong; Liu, Yuxin

    Keywords: Eco-material; Electromagnetic interference shielding; Highly branch structure; Multifunctionality; Nature-inspired tailor

    With the development of advanced communication systems, paralleled with recent efforts to adopt lightweight, low-carbon footprint materials, there is an urgent demand for green electromagnetic interference (EMI) shielding materials. However, this is challenged by the shielding effectiveness of bio-based EMI and their capacity to eliminate radiation pollution while meeting the demands of diverse application environments. Learning from the strategies used by epiphytes, we introduce a highly efficient and multi-functional bio-based EMI shielding eco-material. We developed 3D hybrid network structures incorporating coordination-driven silver nanoparticles to achieve excellent shielding effectiveness, ∼30.8 dB, while simultaneously meeting mechanical demands, multi-functionality, water resistance, flame retardancy, and antibacterial properties. Overall, this work provides a novel but practical pathway to implement bio-based materials conferred with EMI protection, applicable in next-generation electronics.
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