Electromagnetic Parameters of Composite Materials Based on Polyethylene and Multi-Walled Carbon Nanotubes Modified by Iron Oxide Nanoparticles


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Specific features are revealed of how composite materials are formed on the basis of polyethylene and multi-walled carbon nanotubes modified with iron oxide nanoparticles (Fe3O4/MWCNT–PE), produced by the mechanical mixing method from a polyethylene melt. The conditions in which the composite materials are obtained were optimized to provide a uniform distribution of the Fe3O4/MWCNT filler in the polyethylene matrix. The influence exerted by the Fe3O4/MWCNT filler on the electrical properties of the resulting composite materials was determined. Introduction of Fe3O4 nanoparticles gives rise to magnetic properties of a composite material in the frequency range from 1 kHz to 2 MHz. An analysis of the frequency dependences of reflectance, transmittance and absorbance demonstrated that an increase in the sample thickness leads to a higher reflectance and lower transmittance. The composite materials can be used to create coatings lowering the electromagnetic radiation intensity by up to 40%. It was shown that increasing the content of Fe3O4/MWCNT to more than 10 wt % leads to a decrease in both the electrical conductivity and the complex dielectric permittivity and magnetic permeability of the composite material. This occurs due to the decrease in the flowability of the polymer material and to the resulting nonuniform distribution of the filler in the bulk of polyethylene.

作者简介

M. Kazakova

Novosibirsk State University; Boreskov Institute of Catalysis, Siberian Branch

编辑信件的主要联系方式.
Email: mas@catalysis.ru
俄罗斯联邦, Novosibirsk, 630090; Novosibirsk, 630090

E. Korovin

Tomsk State University

Email: mas@catalysis.ru
俄罗斯联邦, Tomsk, 634050

S. Moseenkov

Boreskov Institute of Catalysis, Siberian Branch

Email: mas@catalysis.ru
俄罗斯联邦, Novosibirsk, 630090

A. Kachalov

Tomsk State University

Email: mas@catalysis.ru
俄罗斯联邦, Tomsk, 634050

D. Sergeenko

Tomsk State University

Email: mas@catalysis.ru
俄罗斯联邦, Tomsk, 634050

A. Shuvaev

Siberian State Transport University

Email: mas@catalysis.ru
俄罗斯联邦, Novosibirsk, 630049

V. Kuznetsov

Novosibirsk State University; Tomsk State University

Email: mas@catalysis.ru
俄罗斯联邦, Novosibirsk, 630090; Tomsk, 634050

V. Suslyaev

Tomsk State University

Email: mas@catalysis.ru
俄罗斯联邦, Tomsk, 634050

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