Acoustic and durability performances of Arenga Pinnata panel

This study aims to investigate the feasibility of Arenga Pinnata fiber to be applied for acoustical material component. There different binders namely polyurethane, urea formaldehyde and latex were employed as binder. The weight percentages of binder used were 10%, 15%, 20%, 25%, and 30%. Hand...

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Main Author:	Ismail, Lindawati
Format:	Thesis
Language:	English English English
Published:	2012
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.uthm.edu.my/2268/1/24p%20LINDAWATI%20ISMAIL.pdf http://eprints.uthm.edu.my/2268/2/LINDAWATI%20ISMAIL%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/2268/3/LINDAWATI%20ISMAIL%20WATERMARK.pdf
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id	my-uthm-ep.2268
record_format	uketd_dc
spelling	my-uthm-ep.22682021-10-31T04:57:34Z Acoustic and durability performances of Arenga Pinnata panel 2012-02 Ismail, Lindawati TA Engineering (General). Civil engineering (General) TA401-492 Materials of engineering and construction. Mechanics of materials This study aims to investigate the feasibility of Arenga Pinnata fiber to be applied for acoustical material component. There different binders namely polyurethane, urea formaldehyde and latex were employed as binder. The weight percentages of binder used were 10%, 15%, 20%, 25%, and 30%. Hand layup process was used in specimens production. The physical, acoustical and durability properties of the panels were investigated experimentally. The result shows that panel with high percentages of binder tends to have high density and tortuosity, but less porosity. The optimum porosity of 0.94 was obtained from panel that added with 10% Latex. In general, Arenga Pinnata panels show good sound absorption from mid to high frequency that is from 2000 Hz to 5000 Hz. The best sound absorption is performed by panel added with 10 % Latex with a maximum absorption coefficient (α) of 0.96 at 3000 Hz. The average Noise Reduction Coefficient (NRC) for all panels is 0.40. The value indicates that Arenga Pinnata panels are highly absorptive material. However, Arenga Pinnata panel is poor insulator since the optimum sound transmission loss (STL) is only 9.37 dB from panel added with 15% polyurethane at 5000 Hz. Thus, Arenga Pinnata panel is applicable to reduce echo caused by reflection effects within a room. Sound absorption increases as porosity increase and decrease as density-tortuosity increase. Hence, Arenga pinnata fiber is applicable for acoustical component panel. Moreover, Arenga Pinnata panels are durable that resist in water, heat, and fire. It is applicable for heat insulation 2012-02 Thesis http://eprints.uthm.edu.my/2268/ http://eprints.uthm.edu.my/2268/1/24p%20LINDAWATI%20ISMAIL.pdf text en public http://eprints.uthm.edu.my/2268/2/LINDAWATI%20ISMAIL%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/2268/3/LINDAWATI%20ISMAIL%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Fakulti Kejuruteraan Mekanikal dan Pembuatan
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TA Engineering (General) Civil engineering (General) TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) TA Engineering (General) Civil engineering (General) Ismail, Lindawati Acoustic and durability performances of Arenga Pinnata panel
description	This study aims to investigate the feasibility of Arenga Pinnata fiber to be applied for acoustical material component. There different binders namely polyurethane, urea formaldehyde and latex were employed as binder. The weight percentages of binder used were 10%, 15%, 20%, 25%, and 30%. Hand layup process was used in specimens production. The physical, acoustical and durability properties of the panels were investigated experimentally. The result shows that panel with high percentages of binder tends to have high density and tortuosity, but less porosity. The optimum porosity of 0.94 was obtained from panel that added with 10% Latex. In general, Arenga Pinnata panels show good sound absorption from mid to high frequency that is from 2000 Hz to 5000 Hz. The best sound absorption is performed by panel added with 10 % Latex with a maximum absorption coefficient (α) of 0.96 at 3000 Hz. The average Noise Reduction Coefficient (NRC) for all panels is 0.40. The value indicates that Arenga Pinnata panels are highly absorptive material. However, Arenga Pinnata panel is poor insulator since the optimum sound transmission loss (STL) is only 9.37 dB from panel added with 15% polyurethane at 5000 Hz. Thus, Arenga Pinnata panel is applicable to reduce echo caused by reflection effects within a room. Sound absorption increases as porosity increase and decrease as density-tortuosity increase. Hence, Arenga pinnata fiber is applicable for acoustical component panel. Moreover, Arenga Pinnata panels are durable that resist in water, heat, and fire. It is applicable for heat insulation
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Ismail, Lindawati
author_facet	Ismail, Lindawati
author_sort	Ismail, Lindawati
title	Acoustic and durability performances of Arenga Pinnata panel
title_short	Acoustic and durability performances of Arenga Pinnata panel
title_full	Acoustic and durability performances of Arenga Pinnata panel
title_fullStr	Acoustic and durability performances of Arenga Pinnata panel
title_full_unstemmed	Acoustic and durability performances of Arenga Pinnata panel
title_sort	acoustic and durability performances of arenga pinnata panel
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Fakulti Kejuruteraan Mekanikal dan Pembuatan
publishDate	2012
url	http://eprints.uthm.edu.my/2268/1/24p%20LINDAWATI%20ISMAIL.pdf http://eprints.uthm.edu.my/2268/2/LINDAWATI%20ISMAIL%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/2268/3/LINDAWATI%20ISMAIL%20WATERMARK.pdf
_version_	1747830932394475520

Acoustic and durability performances of Arenga Pinnata panel

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