Thermal stability and degradation of sound absorbing PUR based materials

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Thermal stability and degradation of sound absorbing PUR based materials

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Thermal stability and degradation of sound absorbing PUR based materials

Popis výsledku anglicky

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

Druh

D - Stať ve sborníku

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

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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Počet stran výsledku

8

Strana od-do

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Název nakladatele

International Institute of Acoustics and Vibration (PL)

Místo vydání

Krakow

Místo konání akce

Krakow

Datum konání akce

9. 7. 2009

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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