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Article type: Research Article
Authors: Permata, Diaha; | Widyawati, Widyawati a | Sinaga, Herman H.a | Purwasih, Nininga | Widiarto, Sonnyb
Affiliations: [a] Electrical Engineering Department, Engineering Faculty, Lampung University, Lampung, Indonesia | [b] Chemistry Department, Faculty of Science and Mathematics, Lampung University, Lampung, Indonesia
Correspondence: [*] Corresponding author: Diah Permata, Electrical Engineering Department, Engineering Faculty, Lampung University, Jalan Sumantri Brojonegoro No. 1, Bandar Lampung, Lampung-Indonesia. Tel.: +62 81368371925; E-mail: diah.permata@eng.unila.ac.id
Abstract: Natural fiber composite becomes a necessity encountering the issue of eco-friendly materials. The application of natural fiber composite as electromagnetic interference (EMI) shielding enclosures has not been studied extensively. This study aims to investigate the performance of the coconut fiber composite as EMI shielding enclosure material. Enhancement of the electrical volume-conductivity of the composite was made by polymerization of coconut fiber with polyaniline and doping the multiwall carbon nanotubes to epoxy resin. Three types of composites were made with different weight percentages of coconut fiber: 5, 10, and 15 wt%. The highest volume-conductivity and shielding effectiveness of coconut fiber composite are 0,0458 S/m and −7.69 dB from the highest weight percentage of coconut fiber (15 wt%). While the highest tensile strength (26.78 MPa) resulted from the lowest weight percentage (5 wt%). This study shows the coconut fiber composite could potentially be the material of EMI shielding enclosure though their electrical conductivity and tensile strength should be increased.
Keywords: Coconut fiber, natural composite, enclosure, conductivity, shielding effectiveness
DOI: 10.3233/JAE-220295
Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 73, no. 2, pp. 73-80, 2023
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