Characterization of polyurethan skin agglomerates for acoustic insulation from impact noise

Polymeric materials are greatly used in industry due to their versatility in application generating therefore, large quantities of solid waste. Population growth in urban areas, with living quarters mainly in residential buildings, face discomfort caused by noise, particularly by impact noise. Aimin...

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Bibliographic Details
Published in:Materials research (São Carlos, São Paulo, Brazil) São Paulo, Brazil), 2014-08, Vol.17 (suppl 1), p.210-215
Main Authors: Ribeiro, W. B., Rizzo, M. V., Bortoluz, N., Zeni, M., Nunes, M. F. O., Grisa, A. M. C.
Format: Article
Language:English
Subjects:
Acoustic insulation
Agglomerates
Coarsening
ENGINEERING, CHEMICAL
MATERIALS SCIENCE, MULTIDISCIPLINARY
METALLURGY & METALLURGICAL ENGINEERING
Noise
Noise levels
Particle size
Polyurethane resins
polyurethane skin
recycling
Urban areas
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Summary:Polymeric materials are greatly used in industry due to their versatility in application generating therefore, large quantities of solid waste. Population growth in urban areas, with living quarters mainly in residential buildings, face discomfort caused by noise, particularly by impact noise. Aiming at reducing the amount of polymeric material disposed of in the environment and at providing alternatives of reuse, together with the possibility of reducing noise impact from construction works, agglomerates of polyurethane skin (PUs) have been developed. The recycling process of PUs was developed through variations in particle size and pressing temperature of agglomerates. PU agglomerates of coarse particle size, hot pressing process and close cell structure presented reductions in noise level up to 20 dB, showing that it is suitable for acoustic insulation.
ISSN:1516-1439
1980-5373
1516-1439
1980-5373
DOI:10.1590/1516-1439.226513