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Aging of polyurethane foam insulation in simulated refrigerator walls.

Author(s) : WILKES K. E., YARBROUGH D. W., WEAVER F. J.

Summary

Laboratory data are presented on the thermal conductivity of polyurethane foam insulation in composite test panels that simulate refrigerator walls. The test panels consisted of a steel skin, an ABS plastic liner, and a polyurethane foam core. Foam cores were produced with three different blowing agents (CFC-11, HCFC-141b, and a HCFC-142/22 blend). Periodic thermal measurements have been made on these panels over a three and one-half year period in an effort to detect aging processes. The data show that the encapsulation of the foam in the solid boundary materials greatly reduces the aging rate. Aging of foams blown with HCFC-141b, HFC-134a, HFC-245fa, and cyclopentane will be studied.

Details

  • Original title: Aging of polyurethane foam insulation in simulated refrigerator walls.
  • Record ID : 1998-3532
  • Languages: English
  • Source: International Conference on Ozone Protection Technologies. Conference proceedings.
  • Publication date: 1997/11/12
  • Document available for consultation in the library of the IIR headquarters only.

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