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Current Chinese Engineering Science


ISSN (Print): 2665-9980
ISSN (Online): 2665-9999

Research Article

Computational Study of Treated and Untreated Corn Husk Powder and Polycaprolactone for Microwave Shielding Using Finite Element Method

Author(s): Abubakar Yakubu*, Sirajo Abdullahi, Suleiman Sahabi and Garba Danjuma Sani

Volume 2, Issue 1, 2022

Published on: 13 July, 2022

Article ID: e300422204302 Pages: 11

DOI: 10.2174/2665998002999220430124428

Price: $65


Introduction: Microwave devices and communication devices produce electric fields, which may be dangerous to nearby applications. These fields can be shielded using conductive shells that are closed on all sides. These close conductive shells are often designed using thin metal foils. However, for many applications, these enclosures can add significantly high cost and weight to a product, and a minute gap in the enclosure can completely damage the benefits of the enclosure. Moreso, the metal foil is not flexible to complex geometry. The solution to the gap identified is to use a light, flexible and durable material that can shield unwanted electromagnetic (EM) waves. For this work, treated and untreated corn husk powder (CHP) was produced from agricultural waste residues by grinding into powder form, while polycaprolactone (PCL) was commercially obtained.

Methods: The composites of the materials were synthesized using the melt blending technique. The dielectric property of the produced materials was investigated using the open-ended coaxial probe technique. Moreover, the dielectric constant values were used in the composites' computational study using the finite element method.

Results: Results indicate that the treated dielectric property was greater than the untreated composites. The alkali treatment affected the value of the dielectric constant, shielding effectiveness, and transmission coefficients of the composites. The highest dielectric property obtained was 3.42 for the 30 % filler with a loss factor of 0.47. The filler played a significant role in the values of shielding effectiveness (SE) obtained, where the highest filler was able to shield radiation by up to -4.21 dB at the frequency range measured.

Conclusion: The electric field intensity observed that the highest filler had a minimum transmitted intensity of 2185.87 v/m. The high loss factor of 0.47 obtained for the 30% filler content can produce waveguide terminators and other microwave components from this composite.

Keywords: Shielding, electric field intensity, finite element method, loss factor, dielectric constant, rectangular waveguide.

Graphical Abstract
Y.L. Chan, K.Y. You, M.Z.H. Mayzan, M.A. Jusoh, Z. Abbas, and F. Esa, "Investigation into return loss characteristic of graphene Ox-ide/Zinc Ferrite/epoxy composite at X-band frequency", J. Appli. Sci. Eng., vol. 23, no. 4, pp. 593-602, 2020.
L.L. Adebayo, H. Soleimani, N. Yahya, Z. Abbas, M. Sabet, F.A. Wahaab, and R.T. Ayinla, "Facile preparation and enhanced electromagnetic wave absorption properties of Fe3O4@PVDF nanocomposite", J. Mater. Res. Technol., vol. 9, no. 2, pp. 2513-2521, 2020.
A. Yakubu, Z. Abbas, O. Olugbenga, and S. Sahabi, "Influence of nano particle size on attenuation and dielectric properties of plantain husk powder using microwave techniques at x-band frequency", Phy. Sci. Int. J., pp. 41-51, 2020.
A. Yakubu, Z. Abbas, and A. Sirajo, "Attenuation and shielding performance of wood-polymer composites synthesized via melt-blend technique", OAlib, vol. 7, no. 2, pp. 1-11, 2020.
A. Włodarczyk-Fligier, and M. Polok-Rubiniec, "Studies of resistance of pp/natural filler polymer composites to decomposition caused by fungi", Materials (Basel), vol. 14, no. 6, p. 1368, 2021.
[] [PMID: 33799838]
J.R. Robledo-Ortíz, M.E. González-López, D. Rodrigue, J.F. Gutiérrez-Ruiz, F. Prezas-Lara, and A.A. Pérez-Fonseca, "Improving the compatibility and mechanical properties of natural fibers/green polyethylene biocomposites produced by rotational molding", J. Polym. Environ., vol. 28, no. 3, pp. 1040-1049, 2020.
L. Ammayappan, "Eco-friendly surface modifications of wool fiber for its improved functionality: An overview", Asian J. Text., vol. 3, no. 1, pp. 15-28, 2013.
Z.M. Ghermezgoli, M. K. Moghaddam, and M. Moezzi, "Chemical, morphological and structural characteristics of crossbred wool fibers", J. Textile Insti., vol. 111, no. 5, pp. 709-717, 2020.
M. Hemath, S. Mavinkere Rangappa, V. Kushvaha, H.N. Dhakal, and S. Siengchin, "A comprehensive review on mechanical, electromagnetic radiation shielding, and thermal conductivity of fibers/inorganic fillers reinforced hybrid polymer composites", Polym. Compos., vol. 41, no. 10, pp. 3940-3965, 2020.
D. Abdalhadi, Z. Abbas, A. Fahad, and N.A. Ibrahim, "Permittivity of oil palm empty fruit bunch", BioResources, vol. 12, no. 2, pp. 3976-3991, 2017.
H Hirane, MO Belarbi, MS Houari, and A Tounsi, "On the layerwise finite element formulation for static and free vibration analysis of functionally graded sandwich plates", Eng. Comput., pp. 1-29, 2021.
S Alimirzaei, M Mohammadimehr, and A Tounsi, "Nonlinear analysis of viscoelastic micro-composite beam with geometrical imperfection using FEM: MSGT electro-magneto-elastic bending, buckling and vibration solutions", Struct. Eng. Mech., vol. 71, no. 5, pp. 485-502, 2019.
J. Ma, H. Ren, Z. Liu, J. Zhou, Y. Wang, and B. Hu, "Embedded MoS2-PANI nanocomposites with advanced microwave absorption performance", Compos. Sci. Technol., p. 108239, 2020.
A.D. Meli, "The effects of sls on structural and complex permittivity of sls-hdpe composites", Adv. Poly. Techn, p. 3420925, 2020.
E. Chung, and S.M. Pun, "Computational multiscale methods for first-order wave equation using mixed CEM-GMsFEM", J. Comput. Phys., vol. 409, p. 109359, 2020.
F. Delzendehrooy, M.R. Ayatollahi, A. Akhavan-Safar, and L.F. da Silva, "Strength improvement of adhesively bonded single lap joints with date palm fibers: Effect of type, size, treatment method and density of fibers", Compos., Part B Eng., vol. 188, p. 107874, 2020.
T.L. Ko, S.W. Phyo, and K.T. Ni, "Effectiveness of prepared corn husk activated carbon on the abatement of sodium chloride content in fish sauce", Univers. J. Agric. Res., vol. 6, no. 2, pp. 91-97, 2018.
A. Yakubu, A. Zulkifli, and A. Sirajo, "Microwave absorption properties of unripe plantain husk, polycaprolactone and charcoal powder hybrid nanocomposites using numerical simulation at x-band frequency", J. Natu. Sci. Techno., vol. 1, no. 2, pp. 62757-67783, 2021.
B.M. Reddy, R.M. Reddy, B.C.M. Reddy, P.V. Reddy, H.R. Rao, and Y.M. Reddy, "The effect of granite powder on mechanical, structural and water absorption characteristics of alkali treated cordia dichotoma fiber reinforced polyester composite", Polym. Test., vol. 91, p. 106782, 2020.
D.M. Pozar, Microwave Engineering., John Wiley & Sons: USA, 2012.
F. Zhang, W. Cui, B. Wang, B. Xu, X. Liu, X. Liu, Z. Jia, and G. Wu, "Morphology-control synthesis of polyaniline decorative porous carbon with remarkable electromagnetic wave absorption capabilities", Compos., Part B Eng., vol. 204, p. 108491, 2021.
M. Qin, D. Lan, G. Wu, X. Qiao, and H. Wu, "Sodium citrate assisted hydrothermal synthesis of nickel cobaltate absorbers with tunable morphology and complex dielectric parameters toward efficient electromagnetic wave absorption", Appl. Surf. Sci., vol. 504, p. 144480, 2020.

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