Production of Acoustic Insulating Materials from Viscoelastic Mattress Waste

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Title: Production of Acoustic Insulating Materials from Viscoelastic Mattress Waste
Authors: Conesa, Juan A. | Tomás, Eugenio
Research Group/s: Residuos, Energía, Medio Ambiente y Nanotecnología (REMAN)
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Química | Universidad de Alicante. Instituto Universitario de Ingeniería de los Procesos Químicos
Keywords: Briquette | Mattress | Reduction index | Sound | Waste | Signal processing
Issue Date: 9-Dec-2022
Publisher: MDPI
Citation: Conesa JA, Tomás E. Production of Acoustic Insulating Materials from Viscoelastic Mattress Waste. Sci. 2022; 4(4):48.
Abstract: In this work, briquettes from mattress waste are manufactured and the acoustic properties of the materials produced are checked. Briquettes are made at temperatures between 170 and 185 °C using waste from viscoelastic memory foam (VMF) and applying pressures between 25 and 75 MPa. Later, the properties of the materials such as their bulk density, porosity, and compaction factor are measured. Afterwards, the materials are subjected to a test to determine the sound reduction index at different frequencies. This is completed with a home-made system in which the acoustic signal is compared in the presence and absence of the mattress briquettes using MATLAB® software (Mathworks, Natick, MA, USA) for signal computing. The results are also compared with a reference acoustic insulation material. The runs show that the materials produced from mattress waste are able to reduce the intensity of sound in a similar way to commercial materials. In fact, reduction indices with prepared briquettes are much higher in the frequencies that most affect the human ear, compared to a reference insulating material.
ISSN: 2413-4155
DOI: 10.3390/sci4040048
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (
Peer Review: si
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Appears in Collections:INV - REMAN - Artículos de Revistas

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