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Erschienen in: Cellulose 4/2024

02.02.2024 | Original Research

Multifunctional cellulose composite films with dual-continuous CNT/BN networks for synchronously enhanced electromagnetic interference shielding ability and thermal conductivity

verfasst von: Liang-Qing Zhang, Fang Zhou, Qin Shi, Zheng-Yang Zhang, Shu-Gui Yang, Ding-Xiang Yan, Long-Gui Peng, Xiao-Wei Zhai

Erschienen in: Cellulose | Ausgabe 4/2024

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Abstract

Multifunctional materials with high electromagnetic interference (EMI) shielding effectiveness and thermal conductivity (TC) are an essential guarantee for the rapid advancement of next-generation electronic products. Herein, the three-dimensional porous conductive/thermal network of carbon nanotubes (CNT)/cellulose is prefabricated by “solution-gelation-solvent exchange-freeze drying”. Using “impregnation and high-pressure compression molding”, CNT/cellulose-boron nitride/polyvinyl alcohol (CNT/cellulose-BN/PVA) composite films with three-dimensional dual-continuous network structure are constructed to provide a perfect pathway for both electrons and phonons transportation. Comprehensive performance of the composites before and after hot-pressing including the microstructure, electrical conductivity, EMI shielding and thermal conductivity is investigated. Benefiting from the high-pressure compression molding process, the composite is densified and a close contact between fillers is achieved, which effectively improves the electrical and thermal conductivity. The finally obtained CNT/cellulose-BN/PVA composite film exhibits satisfactory EMI shielding performance, high in-plane and cross-plane TC, as well as excellent Joule heating performance, demonstrating enormous potential as high-performance EMI shielding and thermal management materials in practical applications. The significance of this work is to give an inspiration for improving the comprehensive performance of electromagnetic shielding and thermal conductive materials.

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Literatur
Zurück zum Zitat Ghaffari-Mosanenzadeh S, Aghababaei Tafreshi O, Dammen-Brower E, Rad E, Meysami M, Naguib HE (2021) A review on high thermally conductive polymeric composites. Polym Compos 43:692CrossRef Ghaffari-Mosanenzadeh S, Aghababaei Tafreshi O, Dammen-Brower E, Rad E, Meysami M, Naguib HE (2021) A review on high thermally conductive polymeric composites. Polym Compos 43:692CrossRef
Zurück zum Zitat Zhang LQ, Yang B, Teng J, Lei J, Yan DX, Zhong GJ, Li ZM (2017) Tunable electromagnetic interference shielding effectiveness via multilayer assembly of regenerated cellulose as a supporting substrate and carbon nanotubes/polymer as a functional layer. J Mater Chem C 5:3130–3138. https://doi.org/10.1039/c6tc05516hCrossRef Zhang LQ, Yang B, Teng J, Lei J, Yan DX, Zhong GJ, Li ZM (2017) Tunable electromagnetic interference shielding effectiveness via multilayer assembly of regenerated cellulose as a supporting substrate and carbon nanotubes/polymer as a functional layer. J Mater Chem C 5:3130–3138. https://​doi.​org/​10.​1039/​c6tc05516hCrossRef
Metadaten
Titel
Multifunctional cellulose composite films with dual-continuous CNT/BN networks for synchronously enhanced electromagnetic interference shielding ability and thermal conductivity
verfasst von
Liang-Qing Zhang
Fang Zhou
Qin Shi
Zheng-Yang Zhang
Shu-Gui Yang
Ding-Xiang Yan
Long-Gui Peng
Xiao-Wei Zhai
Publikationsdatum
02.02.2024
Verlag
Springer Netherlands
Erschienen in
Cellulose / Ausgabe 4/2024
Print ISSN: 0969-0239
Elektronische ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-024-05767-2

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