Development and investigation of protective properties of the electromagnetic and soundproofing screen

Abstract

<p>We have developed a technology for manufacturing an universal electromagnetic and soundproofing screen based on foam-latex and foam-polystyrene. The dispersity and physical characteristics of components in a material for shielding electromagnetic field and noise have been investigated. The designed material consists of latex and iron ore dust with dominating dispersion of 12 µm. In order to improve the soundproofing properties, latex was supplemented during fabrication with a foam-forming agent − synthetic oleic acid. To reduce the weight, we added granulated foam-polystyrene with the size of granules 1−3 mm to the material. We examined screens with a thickness of 5 mm and 10 mm with a different content of the metallic substance. It was determined that the shielding coefficients of the material 5 mm think containing 5‒20 % of iron ore content are as follows: for electromagnetic field of frequency 2.4‒2.6 GHz ‒ 1.8−44; for the magnetic field of industrial frequency ‒ 1.2−15.0. For the material with a thickness of 10 mm they are 2.9−52.0 and 2.3‒38.4, respectively. The noise reduction index of 41−44 dB is achieved at noise frequencies of 6−8 kHz, which is the most critical for humans. The structural study of the materials' surface was performed. It has been established that at the content of the metallic substance above 15 %, its distribution in the bulk of the material becomes non-homogenous. In order to improve the efficiency of electromagnetic protection, it is expedient to produce a magnetic or rheological fluid from iron dust in advance, to apply it in the technological process for foam-latex fabrication.</p>It has been proven that the combined electromagnetic and soundproofing (acoustic) screens, that are small in thickness and low in weight, could provide reduction of the levels of electromagnetic fields and noise to match the norms, which is especially important when they are applied in the transportat industry

Authors and Affiliations

Valentyn Glyva, Jaroslav Lyashok, Iryna Matvieieva, Valerii Frolov, Larysa Levchenko, Oksana Tykhenko, Olena Panova, Oleksiy Khodakovskyy, Batyr Khalmuradov, Kyrylo Nikolaiev

Keywords

Related Articles

Analysis of the piston engine operation on ethanol with the synthesis-gas additives

<p><em>We have conducted experimental study into parameters of the piston engine 1Ch 6.8/5.4 with forced ignition operated on ethanol with different additives of the synthesis-gas in the amount to 10 %. </em></p><p><em>W...

Study of the method for assessing atmospheric turbulence by the envelope of sodar signals

<p class="a">The method for measuring the intensity of atmospheric turbulence based on assessment of statistical characteristics of the sodar signal envelope was investigated. This method requires no changes to the sodar...

Effect of technological camber in the facets of a cellular filler on its physical and mechanical characteristics

<p>Among a variety of technological defects of a cellular filler affecting its physical and mechanical characteristics, one of the most essential is believed to be the initial technological camber of facets in its cell....

Development of test operations of different duration in terms of input for the verification of efficiency formula

<p>Determining an indicator for the estimation of effectiveness of system operations is an important stage for optimization of technological processes of any enterprise. This step predetermines the established mode of fu...

Determining additional power losses in the electricity supply systems due to current's higher harmonics

The paper reports results of research into the influence of higher harmonics of the power source voltage and the load current on power losses in an electric network. The relevance of this study is predetermined by the ev...

Download PDF file
  • EP ID EP528276
  • DOI 10.15587/1729-4061.2018.150778
  • Views 80
  • Downloads 0

How To Cite

Valentyn Glyva, Jaroslav Lyashok, Iryna Matvieieva, Valerii Frolov, Larysa Levchenko, Oksana Tykhenko, Olena Panova, Oleksiy Khodakovskyy, Batyr Khalmuradov, Kyrylo Nikolaiev (2018). Development and investigation of protective properties of the electromagnetic and soundproofing screen. Восточно-Европейский журнал передовых технологий, 6(5), 54-61. https://europub.co.uk/articles/-A-528276