The use of graphene in a form of discontinuous flakes in polymer composites limits the full exploitation of the unique properties of graphene, thus requiring high filler loadings for achieving- for example- satisfactory electrical and mechanical properties. Herein centimetre-scale CVD graphene/polymer nanolaminates have been produced by using an iterative ‘lift-off/float-on’ process and have been found to outperform, for the same graphene content, state-of-the-art flake-based graphene polymer composites in terms of mechanical reinforcement and electrical properties. Most importantly these thin laminate materials show a high electromagnetic interference (EMI) shielding effectiveness, reaching 60 dB for a small thickness of 33 μm, and an absolute EMI shielding effectiveness close to 3·105 dB cm2 g−1 which is amongst the highest values for synthetic, non-metallic materials produced to date.

Effective EMI shielding behaviour of thin graphene/PMMA nanolaminates in the THz range / Pavlou, C.; Pastore Carbone, M. G.; Manikas, A. C.; Trakakis, G.; Koral, C.; Papari, G.; Andreone, A.; Galiotis, C.. - In: NATURE COMMUNICATIONS. - ISSN 2041-1723. - 12:1(2021), p. 4655. [10.1038/s41467-021-24970-4]

Effective EMI shielding behaviour of thin graphene/PMMA nanolaminates in the THz range

Pastore Carbone M. G.;Koral C.;Papari G.;Andreone A.;
2021

Abstract

The use of graphene in a form of discontinuous flakes in polymer composites limits the full exploitation of the unique properties of graphene, thus requiring high filler loadings for achieving- for example- satisfactory electrical and mechanical properties. Herein centimetre-scale CVD graphene/polymer nanolaminates have been produced by using an iterative ‘lift-off/float-on’ process and have been found to outperform, for the same graphene content, state-of-the-art flake-based graphene polymer composites in terms of mechanical reinforcement and electrical properties. Most importantly these thin laminate materials show a high electromagnetic interference (EMI) shielding effectiveness, reaching 60 dB for a small thickness of 33 μm, and an absolute EMI shielding effectiveness close to 3·105 dB cm2 g−1 which is amongst the highest values for synthetic, non-metallic materials produced to date.
2021
Effective EMI shielding behaviour of thin graphene/PMMA nanolaminates in the THz range / Pavlou, C.; Pastore Carbone, M. G.; Manikas, A. C.; Trakakis, G.; Koral, C.; Papari, G.; Andreone, A.; Galiotis, C.. - In: NATURE COMMUNICATIONS. - ISSN 2041-1723. - 12:1(2021), p. 4655. [10.1038/s41467-021-24970-4]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/857782
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