On the electromagnetic shielding properties of carbon fiber materials
DOI:
https://doi.org/10.20998/2074-272X.2022.1.05Keywords:
carbon fiber, double TEM cell, electromagnetic shielding, graphite, shielded box method, shielding effectivenessAbstract
Introduction. Due to the good electrical and thermal properties of carbon, carbon-based materials represent a major trend is various applications, including electromagnetic compatibility. Among carbon-based materials, graphite-impregnated woven fabrics represent a new trend in the field of electromagnetic shielding, with the perspective of being used for protective clothing. The novelty of the proposed work consists in the exhaustive comparative analysis of various carbon-based sample shields by employing both simulation and experimental methods. The selected configurations included a simple graphite plate, a graphite powder strip network, and a graphite-impregnated fabric with 2´2 twill weave. Purpose. The main scope of the analysis is to prove the efficiency of the graphite-impregnated twill woven fabric in the field of electromagnetic shielding. Methods. Two main research methods were employed: simulation and experiment, both following the same protocol: the shield placed in the middle, with the excitation (transmitting antenna) on one side and the measurement / receiving antenna on the other. The experimental stage was thorough, being performed in two different laboratories and by applying the double transverse electromagnetic (TEM) cell method and the shielded box method. Results. A significant difference yielded from the comparison of the simulation and experimental results for the shielding effectiveness, probably due to the fact that the virtual model is an idealized version of the physical one, not taking into account its imperfections. The virtual analysis yielded the graphite plate shield as the most efficient, followed closely by the twill fabric. The graphite strip network had significantly poorer performance compared to the other two shields, probably due to the electrical contact imperfections between the graphite strips and the optical transparency of the shield. The main focus of the analysis was the twill woven graphite-impregnated fabric; therefore, its shielding effectiveness was determined through simulation and experiment. The experimental analysis was performed in two stages in two different electromagnetic compatibility laboratories, by employing the double TEM cell method and the shielded box method, respectively, both methods providing similar results and classifying the shielding performance as good. Practical value. The paper provides an accurate analysis of the graphite-impregnated 2´2 twill woven fabric in terms of electromagnetic shielding effectiveness, by employing both simulation and experimental methods, and comparing its performance to the one other graphite-based shields.
References
Gerstner E. Nobel Prize 2010: Andre Geim & Konstantin Novoselov. Nature Physics, 2010, vol. 6, no. 11, pp. 836-836. doi: https://doi.org/10.1038/nphys1836.
Abbasi H., Antunes M., Velasco J.I. Recent advances in carbon-based polymer nanocomposites for electromagnetic interference shielding, Progress in Materials Science, 2019, no. 103, pp. 319-373. doi: https://doi.org/10.1016/j.pmatsci.2019.02.003.
Jia H., Kong Q.-Q., Liu Z., Wei X.-X., Li X.-M., Chen J.-P., Li F., Yang X., Sun G.-H., Chen C.-M. 3D graphene/ carbon nanotubes/ polydimethylsiloxane composites as high-performance electromagnetic shielding material in X-band. Composites Part A: Applied Science and Manufacturing, 2020, vol. 129, pp. 105712. doi: https://doi.org/10.1016/j.compositesa.2019.105712.
Anju V.P., Manoj M., Mohanan P., Narayanankutty S.K. A comparative study on electromagnetic interference shielding effectiveness of carbon nanofiber and nanofibrillated cellulose composites. Synthetic Metals, 2019, vol. 247, pp. 285-297. doi: https://doi.org/10.1016/j.synthmet.2018.12.021.
Gupta S., Tai N.-H. Carbon materials and their composites for electromagnetic interference shielding effectiveness in X-band. Carbon, 2019, vol. 152, pp. 159-187. doi: https://doi.org/10.1016/j.carbon.2019.06.002.
Jou W.S. A Novel Structure of Woven Continuous-Carbon Fiber Composites with High Electromagnetic Shielding. Journal of Electronic Materials, 2004, vol. 33, no. 3, pp. 162-170. doi: https://doi.org/10.1007/s11664-004-0175-x.
Ucar N., Kayaoğlu B.K., Bilge A., Gurel G., Sencandan P., Paker S. Electromagnetic shielding effectiveness of carbon fabric/epoxy composite with continuous graphene oxide fiber and multiwalled carbon nanotube. Journal of Composite Materials, 2018, vol. 52, no. 24, pp. 3341-3350. doi: https://doi.org/10.1177/0021998318765273.
Jou W.S. The high electromagnetic shielding of woven carbon fiber composites applied to optoelectronic devices. CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on Lasers and Electro-Optics, 2003, vol. 2, pp. 755. doi: https://doi.org/10.1109/CLEOPR.2003.1277291.
Rea S.P., Wylie D., Linton D., Orr E., McConnell J. EMI shielding of woven carbon fibre composites. High Frequency Postgraduate Student Colloquium, 2004, pp. 205-210. doi: https://doi.org/10.1109/HFPSC.2004.1360389.
Pamuk G., Kayacan Ö., Kayacan O., Seçkin Uğurlu Ş. Electromagnetic shielding effectiveness of carbon yarn-based woven fabrics. Journal of Industrial Textiles, 2022, vol. 51, no. 7, pp. 1143-1160. doi: https://doi.org/10.1177/1528083719896769.
Keskin H.I., Ozen S., Ates K., Polat L.N. Analysis and Measurement of the Electromagnetic Shielding Efficiency of the Multi-Layered Carbon Fiber Composite Fabrics. 2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring), 2019, pp. 4354-4360. doi: https://doi.org/10.1109/PIERS-Spring46901.2019.9017787.
Baltag O., Rosu G. Applications of Graphite Materials in the Field of Electromagnetic Compatibility. Carbon-Related Materials, 2020, pp. 19-44. doi: https://doi.org/10.1007/978-3-030-44230-9_2.
Miclăuş S., Bechet P., Paljanos A., Aron A.M., Mihai G., Pătru I., Baltag O. Shielding Effectiveness of Some Conductive Textiles and Their Capability to Reduce the Mobile Phones Radiation. International Conference KNOWLEDGE-BASED ORGANIZATION, 2016, vol. 22, no. 3, pp. 524-530. doi: https://doi.org/10.1515/kbo-2016-0091.
Patel S.M., Patel K., Negi P.S., Ojha V.N. Shielding effectiveness measurements and uncertainty estimation for textiles by a VNA-based free space transmission method. International Journal of Metrology and Quality Engineering, 2013, vol. 4, no. 2, pp. 109-115. doi: https://doi.org/10.1051/ijmqe/2013042.
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