Thermal stability and degradation of sound absorbing PUR based materials

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F09%3A63508073" target="_blank" >RIV/70883521:28110/09:63508073 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Thermal stability and degradation of sound absorbing PUR based materials
Original language description
Polyurethane (PUR) based open cell foams (Gumotex, Breclav, Czech Republic) and PUR based nonwoven nano-fabric (SPUR, Zlin, Czech Republic) produced by means of Nanospider technology (ELMARCO, Liberec, Czech Republic) thermal stabilities (DTA, TG analysis) in the temperature range of + 40 to + 500 °C were studied with respect to their application in automotive and aeronautic industry as sound damping materials. Correlation between PUR chemical structure, dimensions of the foam individual cells, nano-fabric air flow resistivity, mechanical, acoustic prop-erties and thermal stability were evaluated. For thermal degradation data evaluation the formal ki-netic model proposed by Ozawa, Flynn and Wall was applied (?T. Ozawa: Bull. Chem. Soc. Japan, 1965, 38,1881?). It was found, that the thermal degradation consists of two steps: 1.step in the temperature range 200 ? 310 °C, weight loss of 23 ? 58 % (activation energy 97 kJ/mol), 2. step in the temperature range 310 ? 450 °C, weight loss 33
Czech name
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Czech description
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Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 16th International Congress on Sound and Vibration. Recent Developments in Acoustics, Noise and Vibration
ISBN
978-83-60716-71-7
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
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Publisher name
International Institute of Acoustics and Vibration (PL)
Place of publication
Krakow
Event location
Krakow
Event date
Jul 9, 2009
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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