Staff View: The potential of napier grass leaf fibres as an acoustic absorber

The potential of napier grass leaf fibres as an acoustic absorber

Acoustic absorbers are introduced to treat poor acoustic enviroment in rooms. However, many available acoustic absorbers in the market are composed of hazardous materials. Therefore, there are demands for the use of sustainable materials in the production of acoustic absorbers. This research investi...

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Main Authors:	Haron, Zaiton, Yahya, Khairulzan, Mohd. Fasli, Nurathirah, Darus, Nadirah, Galib, Suhaida, Halim, Herni, Tuan Mat, Tuan Nor Farazila
Format:	Article
Language:	English
Published:	Dorma Journals 2020
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/90445/1/ZaitonHaron2020_ThePotentialofNapierGrassLeafFibres.pdf http://eprints.utm.my/id/eprint/90445/ http://jett.dormaj.com/Volume8_Issue2.html
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spelling	my.utm.904452021-04-30T14:41:42Z http://eprints.utm.my/id/eprint/90445/ The potential of napier grass leaf fibres as an acoustic absorber Haron, Zaiton Yahya, Khairulzan Mohd. Fasli, Nurathirah Darus, Nadirah Galib, Suhaida Halim, Herni Tuan Mat, Tuan Nor Farazila TA Engineering (General). Civil engineering (General) Acoustic absorbers are introduced to treat poor acoustic enviroment in rooms. However, many available acoustic absorbers in the market are composed of hazardous materials. Therefore, there are demands for the use of sustainable materials in the production of acoustic absorbers. This research investigated the sound absorption potential of grass leaf fibres, i.e. Napier grass, as material for acoustic absorbers. Various bound Napier grass fibre samples, with and without binder under normal press with different thickness, were prepared and tested by using an impedance tube test for sound absorption coefficient (SAC) determination. Samples with binder under hot press with thickness of 10mm were also prepared. The results revealed that 5mm and 20mm fibres, respectively, when bonded with urea formaldhyde (UF) under normal press and with thickness of 30mm, produced a relatively high SAC for frequencies at 500 Hz, 1000 Hz and 2500 Hz, and thus resulted in a high average NRC value of 0.59. This exceeded the value for synthetic fibre-glass and was similar to rockwool. Moreover, the sound absorption performance of 20 mm fibre size hot pressed samples were better than hot pressed 5mm fibre size at 500 Hz frequency until 1000 Hz, as well as the bulk and fibre bonded with UF samples for all frequencies. This study concluded that non-toxic Napier grass fibres can be used in the production of sustainable acoustic absorbers. Dorma Journals 2020 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/90445/1/ZaitonHaron2020_ThePotentialofNapierGrassLeafFibres.pdf Haron, Zaiton and Yahya, Khairulzan and Mohd. Fasli, Nurathirah and Darus, Nadirah and Galib, Suhaida and Halim, Herni and Tuan Mat, Tuan Nor Farazila (2020) The potential of napier grass leaf fibres as an acoustic absorber. Journal of Environmental Treatment Techniques, 8 (2). pp. 797-803. ISSN 2309-1185 http://jett.dormaj.com/Volume8_Issue2.html
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Haron, Zaiton Yahya, Khairulzan Mohd. Fasli, Nurathirah Darus, Nadirah Galib, Suhaida Halim, Herni Tuan Mat, Tuan Nor Farazila The potential of napier grass leaf fibres as an acoustic absorber
description	Acoustic absorbers are introduced to treat poor acoustic enviroment in rooms. However, many available acoustic absorbers in the market are composed of hazardous materials. Therefore, there are demands for the use of sustainable materials in the production of acoustic absorbers. This research investigated the sound absorption potential of grass leaf fibres, i.e. Napier grass, as material for acoustic absorbers. Various bound Napier grass fibre samples, with and without binder under normal press with different thickness, were prepared and tested by using an impedance tube test for sound absorption coefficient (SAC) determination. Samples with binder under hot press with thickness of 10mm were also prepared. The results revealed that 5mm and 20mm fibres, respectively, when bonded with urea formaldhyde (UF) under normal press and with thickness of 30mm, produced a relatively high SAC for frequencies at 500 Hz, 1000 Hz and 2500 Hz, and thus resulted in a high average NRC value of 0.59. This exceeded the value for synthetic fibre-glass and was similar to rockwool. Moreover, the sound absorption performance of 20 mm fibre size hot pressed samples were better than hot pressed 5mm fibre size at 500 Hz frequency until 1000 Hz, as well as the bulk and fibre bonded with UF samples for all frequencies. This study concluded that non-toxic Napier grass fibres can be used in the production of sustainable acoustic absorbers.
format	Article
author	Haron, Zaiton Yahya, Khairulzan Mohd. Fasli, Nurathirah Darus, Nadirah Galib, Suhaida Halim, Herni Tuan Mat, Tuan Nor Farazila
author_facet	Haron, Zaiton Yahya, Khairulzan Mohd. Fasli, Nurathirah Darus, Nadirah Galib, Suhaida Halim, Herni Tuan Mat, Tuan Nor Farazila
author_sort	Haron, Zaiton
title	The potential of napier grass leaf fibres as an acoustic absorber
title_short	The potential of napier grass leaf fibres as an acoustic absorber
title_full	The potential of napier grass leaf fibres as an acoustic absorber
title_fullStr	The potential of napier grass leaf fibres as an acoustic absorber
title_full_unstemmed	The potential of napier grass leaf fibres as an acoustic absorber
title_sort	potential of napier grass leaf fibres as an acoustic absorber
publisher	Dorma Journals
publishDate	2020
url	http://eprints.utm.my/id/eprint/90445/1/ZaitonHaron2020_ThePotentialofNapierGrassLeafFibres.pdf http://eprints.utm.my/id/eprint/90445/ http://jett.dormaj.com/Volume8_Issue2.html
_version_	1698696937111289856
score	13.211869

The potential of napier grass leaf fibres as an acoustic absorber

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