Improved aging CO2 blown foam for refrigerators-freezers.


An industrial trial has been conducted to evaluate aging and energy consumption performance of a new, slow-aging CO2 blown polyurethane foam. A polyethylene film barrier laminated on the liner sheet and plastic encapsulated powder vacuum panels were included in the trial matrix to measure their impact on energy consumption and aging, respectively. The CO2 foams produced at 2.31 pounds per cubic foot minimum fill density (37 kg/m3 in metric units) showed excellent structure, lower K-factor and a 10-fold retarded aging effect with respect to conventional CO2 foams. Using current R141b technology as a reference, initial energy consumption was 15 to 20% higher without vacuum panels but nearly 10% lower with vacuum panels. Within the one year measurement period available so far, aging effects are virtually negligible for the new CO2 foam.


  • Original title: Improved aging CO2 blown foam for refrigerators-freezers.
  • Record ID : 1997-0201
  • Languages: English
  • Source: Stratospheric Ozone Protection for the 90's. 1995 International CFC and Halon Alternatives Conference & Exhibition. Conference proceedings.
  • Publication date: 1995/10/23
  • Document available for consultation in the library of the IIR headquarters only.


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