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Dielectric, electrical conductivity, and thermal stability studies of cellulosic fibers reinforced polylactic acid composites


A., N. Azaharia and M. J., M. Ridzuan and M. S., Abdul Majid and A. B., Maslinda and Cheng, E. M. and Khor, S. F. and M. T., A. Rahman and M. H., Sulaiman (2022) Dielectric, electrical conductivity, and thermal stability studies of cellulosic fibers reinforced polylactic acid composites. Journal of Natural Fibers, 19 (16). pp. 14146-14157. ISSN 1544-0478; ESSN: 1544-046X


In this study, biodegradable polylactic acid (PLA) composites were reinforced with three different natural fibers, were bamboo (BF), sugarcane (SF), and banana pseudostem (BPF) fibers, and prepared at different loadings (10, 20, and 30 wt.%). The solvent casting particulate leaching method was implemented to produce porous composites, and salt was used as the particulate material. The dielectric properties of the PLA/BF, PLA/SF, and PLA/BF composites were studied for different loadings of cellulosic fibers. The composites were observed using scanning electron microscopy (SEM), and the PLA composites with 30 wt.% filler content were analyzed using Fourier transform infrared (FTIR) and thermogravimetric analysis (TGA). According to the dielectric tests, all PLA/BF, PLA/SF, and PLA/BPF composites have low dielectric constants and dielectric loss. The PLA/BF composites exhibited the highest dielectric constant, dielectric loss, and electrical conductivity, followed by the PLA/BF and PLA/SF composites. The morphology of the composites showed their porous structure. The FTIR spectra showed the main constituents presented in the composites, and the PLA/BF showed higher thermal stability than the other composites.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1080/15440478.2022.2116625
Publisher: Taylor and Francis
Keywords: Polylactic acid; Bamboo; Sugarcane; Banana pseudostem; Dielectric properties; Electrical conductivity
Depositing User: Ms. Nur Faseha Mohd Kadim
Date Deposited: 14 Jul 2023 03:29
Last Modified: 14 Jul 2023 03:29
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1080/15440478.2022.2116625
URI: http://psasir.upm.edu.my/id/eprint/100950
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