Measurements of the rate of gas diffusion in rigid cellular plastics

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TypeArticle
Journal titleJournal of Thermal Insulation
ISSN0148-8287
Volume13
Pages4861; # of pages: 14
Subjectthermal insulation; polymeric materials; cellular plastics; air flow; gas diffusion; extruded polystyrene board; chlorofluorocarbons; Cellular plastics (plastic foam); Foam; isolation thermique; materiau polymérique; plastique alvéolaire; ecoulement de l'air
AbstractThis 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
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierIRC-P-1620
NRC number30906
3105
NPARC number20375845
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Record identifiere4b50363-f537-40b5-bf83-c295b8c0302b
Record created2012-07-23
Record modified2016-05-09
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