Sound absorption of tropical woods and their radiation-induced composites

This is a preliminary study on the sound absorption properties of two tropical hardwoods, Light Red Meranti and Ramin, and their wood-polymer composites. Sound absorption is measured using a standing wave apparatus. The samples are of one thickness (7mm) and cut longitudinally. Wood-polymer composit...

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Bibliographic Details
Published in:International journal of radiation applications and instrumentation. Part C, Radiation physics and chemistry Radiation physics and chemistry, 1988, Vol.32 (5), p.677-682
Main Authors: Chia, L.H.L., Teoh, S.H., Tharmaratnam, K., Tan, L.C.
Format: Article
Language:English
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Summary:This is a preliminary study on the sound absorption properties of two tropical hardwoods, Light Red Meranti and Ramin, and their wood-polymer composites. Sound absorption is measured using a standing wave apparatus. The samples are of one thickness (7mm) and cut longitudinally. Wood-polymer composites are made by impregnating the samples with methyl methacrylate which is polymerized in situ through γ-irradiation. Both woods and their composites are better sound absorbers at higher sound frequencies. With partial impregnation, the absorption coefficients are improved upon particularly in the region between 1–3 kHz.
ISSN:1359-0197
1878-1020
DOI:10.1016/1359-0197(88)90087-2