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Comparative Study of Dielectric Properties of Hybrid Natural Fiber Composites

The dielectric properties, such as dielectric constant, dissipation factor and dielectric loss factor of jute/bamboo natural fibers reinforced with polypropylene and unsaturated polyester hybrid composites were studied with different fiber loadings, fiber ratios, frequencies and chemical modificat...

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Main Authors:	Elammaran, Jayamani, Sinin, Hamdan, Md Rezaur, Rahman, Muhammad Khusairy, Bin Bakri
Format:	E-Article
Language:	English
Published:	Elsevier 2014
Subjects:	TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://ir.unimas.my/id/eprint/9181/1/Comparative%20Study%20of%20Dielectric%20Properties%20of%20Hybrid%20Natural%20Fiber%20Composites%20%28abstract%29.pdf http://ir.unimas.my/id/eprint/9181/
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spelling	my.unimas.ir.91812015-10-20T01:31:42Z http://ir.unimas.my/id/eprint/9181/ Comparative Study of Dielectric Properties of Hybrid Natural Fiber Composites Elammaran, Jayamani Sinin, Hamdan Md Rezaur, Rahman Muhammad Khusairy, Bin Bakri TK Electrical engineering. Electronics Nuclear engineering The dielectric properties, such as dielectric constant, dissipation factor and dielectric loss factor of jute/bamboo natural fibers reinforced with polypropylene and unsaturated polyester hybrid composites were studied with different fiber loadings, fiber ratios, frequencies and chemical modifications of natural fibers. The dielectric constant, dissipation factor and loss factor increased with an increase in the fiber content for the entire range of frequencies than the pure polypropylene and pure unsaturated polyester materials. This increase was high at low frequencies, low at medium frequencies, and very low at high frequencies. Dielectric constant values were observed to decrease in frequency due to the decreased interfacial and orientation polarization at higher frequencies. Whereas, dielectric constant increased with an increase in the fiber loading, due to the increase in the number of polar groups, after the addition of hydrophilic lignocellulose fibers. Sodium hydroxide treatment was carried out on jute and bamboo fibers to improve the adhesion between fibers and matrix. The dielectric constant was lower for composites consisting of fibers subjected to alkaline treatment due to the increased hydrophobicity of fibers. When the weight percentage of jute fiber was increased in the total fiber content of the hybrid composites, the dielectric constant, dissipation factor and loss factor were found to increase. It is evident that types of polymer have little influence on the dielectric properties of the hybrid composites. Elsevier 2014 E-Article NonPeerReviewed text en http://ir.unimas.my/id/eprint/9181/1/Comparative%20Study%20of%20Dielectric%20Properties%20of%20Hybrid%20Natural%20Fiber%20Composites%20%28abstract%29.pdf Elammaran, Jayamani and Sinin, Hamdan and Md Rezaur, Rahman and Muhammad Khusairy, Bin Bakri (2014) Comparative Study of Dielectric Properties of Hybrid Natural Fiber Composites. Procedia Engineering, 97. pp. 536-544. ISSN 1877-7058 doi: 10.1016/j.proeng.2014.12.280
institution	Universiti Malaysia Sarawak
building	Centre for Academic Information Services (CAIS)
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Sarawak
content_source	UNIMAS Institutional Repository
url_provider	http://ir.unimas.my/
language	English
topic	TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	TK Electrical engineering. Electronics Nuclear engineering Elammaran, Jayamani Sinin, Hamdan Md Rezaur, Rahman Muhammad Khusairy, Bin Bakri Comparative Study of Dielectric Properties of Hybrid Natural Fiber Composites
description	The dielectric properties, such as dielectric constant, dissipation factor and dielectric loss factor of jute/bamboo natural fibers reinforced with polypropylene and unsaturated polyester hybrid composites were studied with different fiber loadings, fiber ratios, frequencies and chemical modifications of natural fibers. The dielectric constant, dissipation factor and loss factor increased with an increase in the fiber content for the entire range of frequencies than the pure polypropylene and pure unsaturated polyester materials. This increase was high at low frequencies, low at medium frequencies, and very low at high frequencies. Dielectric constant values were observed to decrease in frequency due to the decreased interfacial and orientation polarization at higher frequencies. Whereas, dielectric constant increased with an increase in the fiber loading, due to the increase in the number of polar groups, after the addition of hydrophilic lignocellulose fibers. Sodium hydroxide treatment was carried out on jute and bamboo fibers to improve the adhesion between fibers and matrix. The dielectric constant was lower for composites consisting of fibers subjected to alkaline treatment due to the increased hydrophobicity of fibers. When the weight percentage of jute fiber was increased in the total fiber content of the hybrid composites, the dielectric constant, dissipation factor and loss factor were found to increase. It is evident that types of polymer have little influence on the dielectric properties of the hybrid composites.
format	E-Article
author	Elammaran, Jayamani Sinin, Hamdan Md Rezaur, Rahman Muhammad Khusairy, Bin Bakri
author_facet	Elammaran, Jayamani Sinin, Hamdan Md Rezaur, Rahman Muhammad Khusairy, Bin Bakri
author_sort	Elammaran, Jayamani
title	Comparative Study of Dielectric Properties of Hybrid Natural Fiber Composites
title_short	Comparative Study of Dielectric Properties of Hybrid Natural Fiber Composites
title_full	Comparative Study of Dielectric Properties of Hybrid Natural Fiber Composites
title_fullStr	Comparative Study of Dielectric Properties of Hybrid Natural Fiber Composites
title_full_unstemmed	Comparative Study of Dielectric Properties of Hybrid Natural Fiber Composites
title_sort	comparative study of dielectric properties of hybrid natural fiber composites
publisher	Elsevier
publishDate	2014
url	http://ir.unimas.my/id/eprint/9181/1/Comparative%20Study%20of%20Dielectric%20Properties%20of%20Hybrid%20Natural%20Fiber%20Composites%20%28abstract%29.pdf http://ir.unimas.my/id/eprint/9181/
_version_	1644510668800393216
score	13.211869

Comparative Study of Dielectric Properties of Hybrid Natural Fiber Composites

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