Electromagnetic Interference Shielding Performance of Ag/multi-walled Carbon Nanotubes-poly(methyl methacrylate) Composites | Sciact - CRIS-system of Boreskov Institute of Catalysis

Electromagnetic Interference Shielding Performance of Ag/multi-walled Carbon Nanotubes-poly(methyl methacrylate) Composites Full article

Journal

Materials Chemistry and Physics
ISSN: 0254-0584 , E-ISSN: 1879-3312

Output data

Year: 2023, Volume: 307, Article number : 128176, Pages count : 14 DOI: 10.1016/j.matchemphys.2023.128176

Tags

Multi-walled carbon nanotubes, Ag nanoparticles, Hybrid structures, Polymer composite, Electromagnetic interference shielding

Authors

Kazakova Mariya A. ¹ , Golubtsov Georgiy V. ^1,2 , Selyutin Alexander G. ^1,3 , Ishchenko Arcady V. ^1,2 , Serkova Alexandra N. ¹ , Gorokhov Gleb V. ⁴ , Misiyuk Philip Y. ⁴ , Valynets Nadzeya I. ⁴

Affiliations

1	Boreskov Institute of Catalysis SB RAS, Novosibirsk, 630090, Russia
2	Novosibirsk State University, Pirogova 2, Novosibirsk, 630090, Russia
3	Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis SB RAS, Nikol’skiy Prospekt 1, Kol’tsovo, 630559, Russia
4	Laboratory of Nanoelectromagnetics, Institute for Nuclear Problems Belarusian State University, Bobruiskaya str. 11, Minsk, 220006, Belarus

Funding (2)

1	Ministry of Science and Higher Education of the Russian Federation	0239-2021-0010
2	Russian Foundation for Basic Research	20-53-04008 (121062300010-4)

An efficient strategy for synthesizing Ag/multi-walled carbon nanotubes-poly(methyl methacrylate) (Ag/MWCNT-PMMA) composites has been proposed. The synthesis concept is based on the modification of oxidized MWCNT with Ag nanoparticles and subsequent distribution of the obtained Ag/MWCNT-Ox hybrids in a PMMA matrix. Herein, Ag/MWCNT-Ox hybrids with various size and content of Ag nanoparticles serve as a tool for tuning the electrical conductivity of the two series of Ag/MWCNT-PMMA composites with MWCNT-Ox content before (4 wt%) and after (10 wt%) the percolation threshold. Adding 0.2 wt% of Ag to the first composite series with nanotubes content of 4 wt% leads to a decrease in the percolation threshold in a three-component system. In the case of the second composite series, the introduction of Ag up to 1 wt% leads to a monotonic increase in the conductivity within one order of magnitude. Ag/MWCNT-PMMA demonstrates high shielding efficiency for incident radiation in the frequency range of 26–37 GHz, most of which is absorbed due to the conductive nature of the material. The improved electromagnetic properties of the Ag/MWCNT-PMMA composites are explained by the uniform distribution of fillers in the polymer, which ensures the formation of a 3D conducting network inside the composite, and by the synergistic interaction between MWCNT and Ag. Thus, Ag/MWCNT-PMMA composites have broad application prospects in the field of electromagnetic compatibility.

Kazakova M.A. , Golubtsov G.V. , Selyutin A.G. , Ishchenko A.V. , Serkova A.N. , Gorokhov G.V. , Misiyuk P.Y. , Valynets N.I.
Electromagnetic Interference Shielding Performance of Ag/multi-walled Carbon Nanotubes-poly(methyl methacrylate) Composites
Materials Chemistry and Physics. 2023. V.307. 128176 :1-14. DOI: 10.1016/j.matchemphys.2023.128176 WOS Scopus РИНЦ AN OpenAlex publication_identifier_short.sciact_skif_identifier_type

Submitted:	Mar 28, 2023
Accepted:	Jul 10, 2023
Published online:	Jul 11, 2023
Published print:	Oct 1, 2023

Web of science:	WOS:001046886100001
Scopus:	2-s2.0-85165167224
Elibrary:	54372671
Chemical Abstracts:	2023:1494831
OpenAlex:	W4383878246
publication_identifier.sciact_skif_identifier_type:	2229

DB	Citing
OpenAlex	5
Scopus	3
Web of science	3
Elibrary	2