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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)
TA401-492 Materials of engineering and construction. Mechanics of materials
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
http://eprints.uthm.edu.my/2268/
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spelling my.uthm.eprints.22682021-10-31T04:57:34Z http://eprints.uthm.edu.my/2268/ Acoustic and durability performances of Arenga Pinnata panel 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 NonPeerReviewed text en http://eprints.uthm.edu.my/2268/1/24p%20LINDAWATI%20ISMAIL.pdf text en http://eprints.uthm.edu.my/2268/2/LINDAWATI%20ISMAIL%20COPYRIGHT%20DECLARATION.pdf text en http://eprints.uthm.edu.my/2268/3/LINDAWATI%20ISMAIL%20WATERMARK.pdf Ismail, Lindawati (2012) Acoustic and durability performances of Arenga Pinnata panel. Masters thesis, Universiti Tun Hussein Onn Malaysia.
institution Universiti Tun Hussein Onn Malaysia
building UTHM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tun Hussein Onn Malaysia
content_source UTHM Institutional Repository
url_provider http://eprints.uthm.edu.my/
language English
English
English
topic TA Engineering (General). Civil engineering (General)
TA401-492 Materials of engineering and construction. Mechanics of materials
spellingShingle TA Engineering (General). Civil engineering (General)
TA401-492 Materials of engineering and construction. Mechanics of materials
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
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
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
http://eprints.uthm.edu.my/2268/
_version_ 1738580968605745152
score 13.211869

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