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Article

Complex Permittivity and Electromagnetic Interference Shielding Effectiveness of OPEFB Fiber-Polylactic Acid Filled with Reduced Graphene Oxide

1
Department of Physics, Faculty of Science, University Putra Malaysia (UPM), Serdang 43400, Malaysia
2
Material Synthesis and Characterization Laboratory, Institute of Advanced Technology (ITMA), University Putra Malaysia (UPM), Serdang 43400, Malaysia
*
Author to whom correspondence should be addressed.
Materials 2020, 13(20), 4602; https://doi.org/10.3390/ma13204602
Received: 22 June 2020 / Revised: 31 July 2020 / Accepted: 5 August 2020 / Published: 16 October 2020
(This article belongs to the Section Carbon Materials)
This study was aimed at fabricating composites of polylactic acid (PLA) matrix-reinforced oil palm empty fruit bunch (OPEFB) fiber filled with chemically reduced graphene oxide (rGO). A total of 2–8 wt.% rGO/OPEFB/PLA composites were characterized for their complex permittivity using an open-ended coaxial probe (OEC) technique. The shielding efficiency properties were calculated using the measured transmission (S21) and the reflection (S11) coefficient results. All the measurements and calculations were performed in the 8–12 GHz frequency range. The morphological and microstructural study included X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and Fourier transform infrared spectroscopy (FTIR). The results indicated that the incorporation of rGO as filler into the composites enhanced their complex permittivity properties. The composites showed a total shielding efficiency (SET) of about 31.2 dB at a frequency range of 8–12 GHz, which suggests their usefulness for microwave absorption. View Full-Text
Keywords: fiber; polymer; dielectric properties; reduced graphene oxide; EMI shielding effectiveness fiber; polymer; dielectric properties; reduced graphene oxide; EMI shielding effectiveness
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MDPI and ACS Style

Ibrahim Lakin, I.; Abbas, Z.; Azis, R.S.; Abubakar Alhaji, I. Complex Permittivity and Electromagnetic Interference Shielding Effectiveness of OPEFB Fiber-Polylactic Acid Filled with Reduced Graphene Oxide. Materials 2020, 13, 4602. https://doi.org/10.3390/ma13204602

AMA Style

Ibrahim Lakin I, Abbas Z, Azis RS, Abubakar Alhaji I. Complex Permittivity and Electromagnetic Interference Shielding Effectiveness of OPEFB Fiber-Polylactic Acid Filled with Reduced Graphene Oxide. Materials. 2020; 13(20):4602. https://doi.org/10.3390/ma13204602

Chicago/Turabian Style

Ibrahim Lakin, Ismail, Zulkifly Abbas, Rabaah S. Azis, and Ibrahim Abubakar Alhaji. 2020. "Complex Permittivity and Electromagnetic Interference Shielding Effectiveness of OPEFB Fiber-Polylactic Acid Filled with Reduced Graphene Oxide" Materials 13, no. 20: 4602. https://doi.org/10.3390/ma13204602

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