Record Display for the EPA National Library Catalog


Main Title Aging of polyurethane foam insulation in simulated refrigerator walls.
Author Wilkes, K. E. ; Yarbrough, D. W. ; Weaver, F. J. ;
CORP Author USDOE, Washington, DC. USDOE Assistant Secretary for Energy Efficiency and Renewable Energy, Washington, DC. ;Environmental Protection Agency, Washington, DC.
Publisher 31 Oct 1997
Year Published 1997
Report Number ORNL/CP-94345 ;CONF-971151; AC05-96OR22464;
Stock Number DE98000332
Additional Subjects Refrigerators ; Thermal Insulation ; Polyurethanes ; Aging ; Thermal Conductivity ; Meetings ; EDB/320106
Library Call Number Additional Info Location Last
NTIS  DE98000332 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 16p
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. Data obtained on foam encased in the panels were compared with measurements on thin foam slices that were removed from similar panels. The data show that the encapsulation of the foam in the solid boundary materials greatly reduces the aging rate. The plan is presented for a follow-on project that is being conducted on the aging of foams blown with HCFC-141b, HFC- 134a, HFC-245fa, and cyclopentane.