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Titre :
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Calculation model for the prediction of gas diffusion and ageing of CFC free pur rigid foam
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Auteurs :
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R. Walter ;
S. Wendel ;
UTECH'92 conference proceedings, Hague, 31 Mars-2 Avril 1992 (1992)
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Type de document :
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article/chapitre/communication
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Année de publication :
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1992
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Format :
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p.259-264
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Langues:
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= Anglais
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Catégories :
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MATERIAUX
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Mots-clés:
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VIEILLISSEMENT
;
REMPLACEMENT DES CFC
;
MOUSSE
;
CPG
;
CONDUCTIVITE THERMIQUE
;
GONFLEMENT
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Résumé :
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The cell gas diffusion in CFC free water/CO2 and pentane blown pur rigid foams for building application was investigated. Based on measurements of the cell gas composition by gaschromatograph the gas diffusion coefficients were determined and a calculation model was developed for predicting the longterm gas diffusion process.
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