Development and investigation of protective properties of the electromagnetic and soundproofing screen
DOI:
https://doi.org/10.15587/1729-4061.2018.150778Keywords:
electromagnetic screen, soundproofing screen, iron ore dust, shielding coefficient, foam-latex, foam-polystyreneAbstract
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.
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 industryReferences
- Grinchenko, V. S. (2018). Mitigation of three-phase power line magnetic field by grid electromagnetic shield. Tekhnichna Elektrodynamika, 2018 (4), 29–32. doi: https://doi.org/10.15407/techned2018.04.029
- Li, M., Xiao, S., Bai, Y.-Y., Wang, B.-Z. (2012). An Ultrathin and Broadband Radar Absorber Using Resistive FSS. IEEE Antennas and Wireless Propagation Letters, 11, 748–751. doi: https://doi.org/10.1109/lawp.2012.2206361
- Singh, J. (2015). Computer Generated Energy Effects on Users and Shielding Interference. International Journal of Innovative Research in Computer and Communication Engineering, 3 (10), 10022–10027.
- Glyva, V. A., Podoltsev, A. D., Bolibrukh, B. V., Radionov, A. V. (2018). A thin electromagnetic shield of a composite structure made on the basis of a magnetic fluid. Tekhnichna Elektrodynamika, 2018 (4), 14–18. doi: https://doi.org/10.15407/techned2018.04.014
- Mondal, S., Ganguly, S., Das, P., Khastgir, D., Das, N. C. (2017). Low percolation threshold and electromagnetic shielding effectiveness of nano-structured carbon based ethylene methyl acrylate nanocomposites. Composites Part B: Engineering, 119, 41–56. doi: https://doi.org/10.1016/j.compositesb.2017.03.022
- Glyva, V., Podkopaev, S., Levchenko, L., Karaieva, N., Nikolaiev, K., Tykhenko, O. et. al. (2018). Design and study of protective properties of electromagnetic screens based on iron ore dust. Eastern-European Journal of Enterprise Technologies, 1 (5 (91)), 10–17. doi: https://doi.org/10.15587/1729-4061.2018.123622
- Castiñeira-Ibañez, S., Rubio, C., Sánchez-Pérez, J. V. (2015). Environmental noise control during its transmission phase to protect buildings. Design model for acoustic barriers based on arrays of isolated scatterers. Building and Environment, 93, 179–185. doi: https://doi.org/10.1016/j.buildenv.2015.07.002
- Korotchenko, M. V., Shevchenko, Yu. S. (2012). Doslidzhennia efektyvnosti akustychnykh ekraniv na avtomobilnykh dorohakh Ukrainy. Naukovo-vyrobnychyi zhurnal, 6, 40–42.
- Lu, J., Qiu, C., Ye, L., Fan, X., Ke, M., Zhang, F., Liu, Z. (2016). Observation of topological valley transport of sound in sonic crystals. Nature Physics, 13 (4), 369–374. doi: https://doi.org/10.1038/nphys3999
- Abid, M., Abbes, M. S., Chazot, J. D., Hammemi, L., Hamdi, M. A., Haddar, M. (2012). Acoustic response of multilayer with viscoelastic material. The International Journal of Acoustics and Vibration, 17 (2). doi: https://doi.org/10.20855/ijav.2012.17.2300
- Edelstein, W. A., Kidane, T. K., Taracilla, V. et. al. (2004). Pat. No. US 7,141,974 B2 USA. Active-passive electromagnetic shielding to reduce MRI acoustic noise. Int. C. GOI/3/00. No. 10/925,691; declareted: 25.08.2004; published: 28.11.2006, Bul. No. 1. Available at: https://patents.google.com/patent/US7141974B2/en
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Copyright (c) 2018 Valentyn Glyva, Jaroslav Lyashok, Iryna Matvieieva, Valerii Frolov, Larysa Levchenko, Oksana Tykhenko, Olena Panova, Oleksiy Khodakovskyy, Batyr Khalmuradov, Kyrylo Nikolaiev
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