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Thermal stability and degradation of sound absorbing PUR based materials

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dc.title Thermal stability and degradation of sound absorbing PUR based materials en
dc.contributor.author Lapčíková, Barbora
dc.contributor.author Lapčík, Lubomír
dc.contributor.author Juřička, Martin
dc.contributor.author Vašina, Martin
dc.relation.ispartof 16th International Congress on Sound and Vibration 2009, ICSV 2009
dc.identifier.isbn 9781615677368
dc.date.issued 2009
utb.relation.volume 4
dc.citation.spage 2507
dc.citation.epage 2514
dc.event.title 16th International Congress on Sound and Vibration 2009, ICSV 2009
dc.event.location Krakow
utb.event.state-en Poland
utb.event.state-cs Polsko
dc.event.sdate 2009-07-05
dc.event.edate 2009-07-09
dc.type conferenceObject
dc.language.iso en
dc.description.abstract 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 properties and thermal stability were evaluated. For thermal degradation data evaluation the formal kinetic 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 - 71 % (activation energy 132 kJ/mol). At the temperature of 265 °C an endothermal peak was found from DTA data. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1004900
utb.identifier.scopus 2-s2.0-84871425206
utb.source d-scopus
dc.date.accessioned 2015-06-04T12:55:56Z
dc.date.available 2015-06-04T12:55:56Z
utb.contributor.internalauthor Lapčíková, Barbora
utb.contributor.internalauthor Lapčík, Lubomír
utb.contributor.internalauthor Juřička, Martin
utb.contributor.internalauthor Vašina, Martin
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