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Thermal performance of sprayed polyurethane foam insulation with alternative blowing agents

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
Subjectthermal insulation; cfc (chlorofluorocarbon); Cellular plastics (plastic foam); Foam; isolation thermique
Abstract
NA test methodology that uses thermal resistance-time curves determined on thin slices of the foam and the scaling technique to relate aging time to the specimen thickness, was applied to evaluate long-term thermal performance of six polyurethane foams manufactured with the same polymer but different blowing agents. The blowing agents employed were: CFC-11 with 0, 0.5, 1.0 or 1.5% water and HCFC-123 or HCFC-14 lb. Except for foams manufactured with CFC-11 and 1.0% or 1.5% of water, for which material inhomogeneity was higher than can be tolerated by the proposed test methodology, polyurethane foams manufactured with CFC-11 and 0.5% water, HCFC-123 and HCFC-14 lb showed long-term thermal performance similar to that of CFC-11 blown materials.
Publication date
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  • Journal of Thermal Insulation 14, no. July (July 1990): 43–57.
LanguageEnglish
Peer reviewedYes
IdentifierIRC-P-1695
NRC numberNRCC 32365
NRC-IRC-3129
NPARC number20375680
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Record identifier2ad99552-26e9-40dc-ad9b-7ab960a7ea5d
Record created2012-07-23
Record modified2020-06-06
Date modified: