NDLI: Improving sound absorption property of polyurethane foams doped with natural fiber

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Improving sound absorption property of polyurethane foams doped with natural fiber

Content Provider	Scilit
Author	Azahari, M. Shafiq M. Rus, Anika Zafiah M. Zaliran, M. Taufiq Kormin, Shaharuddin
Copyright Year	2017
Description	Journal: Iop Conference Series: Materials Science and Engineering This study investigates the acoustics behavior of wood fibre filler of Red Meranti - filled polyurethane foam as a sound absorbing material. Three different thicknesses have been selected which is 10 mm, 20 mm and 30 mm. By choosing percentage loading of Red Meranti (RM) wood fibre of 5%, 10%, 15% and 20% added with polymer foam is namely as polymer foam (PF) composites of $PF_{5%}$, $PF_{10%}$, $PF_{15%}$ and $PF_{20%}$. The sound absorption coefficient (α) and pore structure of the foam samples have been examined by using Impedance Tube test and Scanning Electron Microscopy (SEM). The results revealed that the highest thickness of highest filler loading $(PF_{20%)}$ gives higher sound absorption coefficient (α). The absorption frequency level is observed at 0.9922 and 0.99889 which contributed from low and high frequency absorption level respectively. The smallest pores size structure was observed with highest filler loading of PF. The higher the thickness and the higher the percentage loading of wood filler gives smaller pore structure, consequently, increased the sound absorption coefficient level.
Related Links	http://iopscience.iop.org/article/10.1088/1757-899X/226/1/012009/pdf
ISSN	17578981
e-ISSN	1757899X
DOI	10.1088/1757-899x/226/1/012009
Journal	Iop Conference Series: Materials Science and Engineering
Issue Number	1
Volume Number	226
Language	English
Publisher	IOP Publishing
Publisher Date	2017-08-14
Access Restriction	Open
Subject Keyword	Journal: Iop Conference Series: Materials Science and Engineering Paper and Wood Percentage Loading
Content Type	Text
Resource Type	Article

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