International Journal For Multidisciplinary Research

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Acoustic Properties of Rigid Polyurethane Foam Mixed with Pet Bottle Wastes

Author(s) Cyril George Thottumkal
Country India
Abstract Rigid closed-cell polyurethane foam is renowned for its outstanding sound absorption properties and its application as sound insulation panels. Studies show that mixing of rigid polyurethane foam with non-reactive filler materials during fabrication improves the sound absorption properties of the composite material. In this composite, foam was fabricated from polyol and isocyanate monomers with shredded pet bottle waste as a filler component. The percentages of pet wastes mixed with the polyurethane foam composites were varied by 0%, 10%, 15%, 20% and 25% of total weight. The measurement of sound absorption coefficient has been done using impedance tube technique. The results showed that the rigid polyurethane foam with 0% pet waste has poor acoustic absorption. Also, sound absorption coefficient results showed that a sample with higher amount of upto 20%pet bottle waste had better sound absorption even at higher frequencies. From this research it is clear that mixing of pet waste as a filler material upto 20% is ideal for fabricating sound absorption panels with better sound absorption average.
Keywords Sound Absorption, Acoustics, Insulation, Impedence Tube, Sound Absorption Average, PET waste, Rigid Polyurethane Foam
Field Physics > Civil Engineering
Published In Volume 4, Issue 5, September-October 2022
Published On 2022-10-06
Cite This Acoustic Properties of Rigid Polyurethane Foam Mixed with Pet Bottle Wastes - Cyril George Thottumkal - IJFMR Volume 4, Issue 5, September-October 2022. DOI 10.36948/ijfmr.2022.v04i05.849
DOI https://doi.org/10.36948/ijfmr.2022.v04i05.849
Short DOI https://doi.org/grb58p
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