<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>This article reports on impedance tube measurements of the sound absorption coefficient α (-) of selected recycled foam plastics, i.e., ethylene-vinyl acetate (EVA), polyvinyl chloride (PVC), polystyrene (PS), and polypropylene (PP), in different mixtures with a binding adhesive. The effect of the thickness of the sample on the sound absorption spectrum as well as the variability in absorption across the different samples of the same composition and thickness are discussed. For the EVA/ PP and PS/PP mixtures, the spectrum is characterized by two peaks that shift as the thickness is changing. These mixtures were also found to be the most absorbent across the whole audible frequency range.</p>
</abstract>

This article reports on impedance tube measurements of the sound absorption coefficient α (-) of selected recycled foam plastics, i.e., ethylene-vinyl acetate (EVA), polyvinyl chloride (PVC), polystyrene (PS), and polypropylene (PP), in different mixtures with a binding adhesive. The effect of the thickness of the sample on the sound absorption spectrum as well as the variability in absorption across the different samples of the same composition and thickness are discussed. For the EVA/ PP and PS/PP mixtures, the spectrum is characterized by two peaks that shift as the thickness is changing. These mixtures were also found to be the most absorbent across the whole audible frequency range.

Sound Absorption Properties of Materials Based on Recycled Plastic Granule Mixtures

Dept. of Building Materials, Faculty of Civil Engineering

Slovak Journal of Civil Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

This article reports on impedance tube measurements of the sound absorption coefficient α (-) of selected recycled foam plastics, i.e., ethylene-vinyl acetate...

Sound Absorption Properties of Materials Based on Recycled Plastic Granule Mixtures

Pubblicato online: 13 apr 2021

Pagine: 15 - 19

DOI: https://doi.org/10.2478/sjce-2021-0003

Parole chiave
Soundabsorption, Recycling, Metamaterials

© 2021 Andrea Biskupičová et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Sound Absorption Properties of Materials Based on Recycled Plastic Granule Mixtures

Pubblicato online: 13 apr 2021

Pagine: 15 - 19

DOI: https://doi.org/10.2478/sjce-2021-0003

Parole chiaveSoundabsorption, Recycling, Metamaterials

© 2021 Andrea Biskupičová et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Parole chiave
Soundabsorption, Recycling, Metamaterials