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Title: Acoustic Properties of a New Composite Material Obtained from Feather Flour and Recycled Polypropylene
Authors: Constantin, Mirela Alina 
Constantin, Lucian Alexandru 
Aradoaei, Sebastian 
Aradoaei, Mihaela 
Bratu, Mihai 
Vasile, Ovidiu 
Affiliations: National Research and Development Institute for Industrial Ecology, ECOIND 
National Research and Development Institute for Industrial Ecology, ECOIND 
SC Innovative Green Materials SRL 
Gheorghe Asachi Technical University of Iasi 
National Research and Development Institute for Industrial Ecology, ECOIND 
University Politehnica of Bucharest, Romania 
Keywords: Noise pollution;Feather flour;Recycled polypropylene;Wastes;Sound absorption coefficient
Issue Date: Jun-2021
Publisher: Materiale plastice
Sustainable materials made from recycled materials are an alternative to traditional materials (synthetic ones) and present a lower environmental impact. Due to the fact that natural fibers were successfully used to produce environmentally friendly sound adsorbing materials, biocomposites made from recycled polypropylene (PPR), feathers flour (FF) with / without compatibilizers (C) were obtained and characterized from the point of view of their acoustical behavior. Obtained materials were characterized also from the morphological and compositional point of view by scanning electron microscopy and thermal gravimetric analysis. All tested samples presented sound adsorption properties but the best results were obtained for the biocomposites with FF content of 10%-20%.
Matereriale Plastice, vol. 58, no. 4, 2021, 84-93,
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