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Title: Research on the sound-absorbing properties of new composite materials with some wastes
Other Titles: Cercetari privind proprietatile fonoabsorbante ale unor noi materiale compozite cu deseuri
Authors: Bratu, Mihai 
Dumitrescu, Ovidiu 
Vasile, Ovidiu 
Constantin, Mirela Alina 
Muntean, Marcela 
Keywords: Sound-absorbing properties;Wastes;Absorbing coefficients;Porosity;Interface
Issue Date: 2014
Publisher: Foundation for Materials Science and Engineering “Serban Solacolu”
Noise is a ‘non-periodic sounds’ complex which affects biological and psychological state of people and
other natural organisms. The present paper is dedicated to some new polymeric composites with sound-absorbing properties. The originality consists in obtaining new polymeric composites from formaldehyde resin and various waste types used as reinforcing agents. The sound absorbing capacity of the new composites varies depending on the proportion of waste used. The absorbing coefficient is presented for each sample; it depends on the porosity of the composite material obtained at the interface between
the matrix and reinforcing agent.
Romanian Journal of Materials Volume 44 Issue 2
ISSN: 2457-502X
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