Study on Chicken Feather as Acoustical Absorptive Material

Abstract

Green materials for building insulations, specifically for noise prevention applications are on demands and attract researchers to contribute. This research seeks utilization prospects of chicken feathers (CF) as alternative of noise absorption materials through understanding of its absorption coefficient characteristics for acoustical material applications. Common absorptive material glass wool (GW) is used in measurement as counterparts. Clean and dried CF is compacted in cylindrical mesh prior to measurement for absorption coefficient using impedance tube method in anechoic room. The typical specimen made to diameter 100 mm by 25, 50 and 75 mm thicknesses, all in similar density of 48kg/m3. Respond of specimen are taken within frequency range of 100 Hz - 1600 Hz for absorption coefficient measurements and averaging. Result shows that the absorption coefficients are relatively increase on all specimen thickness throughout the frequency ranges, reaching maximum value of 0.99 at frequencies 1600 Hz, 950 Hz, and 650 Hz for CF thickness 25, 50 and 75 mm, respectively. Both chicken feathers (CF) and glass wool (GW) response comparably during experiment frequency ranges, confirm the possibility of chicken feathers as acoustical absorptive material.

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