A Method for evaluating the effect of blowing agent condensation on sprayed polyurethane foams

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Pages8490; # of pages: 7
Subjectcfc; chloroflorocarbons; Cellular plastics (plastic foam); Foam
AbstractAn experimental procedure for the determination of temperature dependence of thermal conductivity of foam insulations blown with condensable gases is presented. The procedure is used to investigate the effect of the blowing agent on thermal conductivty of a polyurethane system blown with CFC-11 or HCFC-123, at various stages of its aging. A method to calculate the partial pressure of the blowing agent in the cell gas mixture of the test specimens, from the data on thermal conductivity, is also presented.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number31112
NPARC number20375975
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Record identifier4dd2c524-cca1-4e5d-8664-207d19106d4d
Record created2012-07-23
Record modified2016-05-09
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