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Measurements of the rate of gas diffusion in rigid cellular plastics

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
SubjectCellular plastics (plastic foam); Foam; thermal insulation; polymeric materials; cellular plastics; air flow; gas diffusion; extruded polystyrene board; chlorofluorocarbons
Abstract
This paper describes a method for measuring gas diffusion through cellular plastics. A specimen is placed in a chamber, which is then sealed and pressurized with the test gas. The pressure increase causes some gas to enter the specimen, and this entry results in a reduction of the chamber pressure. By following the change in chamber pressure with time an appropriate transport characteristic for the material is determined. An application of this method to a core specimen of an extruded polystyrene board is presented.
Publication date
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  • Journal of Thermal Insulation 13 (July 1989): 48–61.
LanguageEnglish
Peer reviewedYes
IdentifierIRC-P-1620
NRC numberNRCC 30906
NRC-IRC-3105
NPARC number20375845
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Record identifiere4b50363-f537-40b5-bf83-c295b8c0302b
Record created2012-07-23
Record modified2023-12-01
Date modified: