Aging of Polyurethane Foam Insulation in Simulated Refrigerator Panels–Three-Year Results with Third-Generation Blowing Agents

Autor:	Kenneth E. Wilkes, David W. Yarbrough, W. A. Gabbard, Gary E. Nelson, J. Richard Booth
Rok vydání:	2002
Předmět:	020401 chemical engineering Polymers and Plastics Materials Chemistry 02 engineering and technology General Chemistry 0204 chemical engineering 021001 nanoscience & nanotechnology 0210 nano-technology
Zdroj:	Journal of Cellular Plastics. 38:317-339
ISSN:	1530-7999 0021-955X
Popis:	Laboratory data are presented on the effect of constant temperature aging on the apparent thermal conductivity of polyurethane foam insulation for refrigerators and freezers. The foam specimens were blown with HCFC-141b and with three of its potential replacements—HFC-134a, HFC-245fa, and cyclopentane. Specimens were aged at constant temperatures of 90 F, 40 F, and-10 F. Thermal conductivity measurements were made on two types of specimens: full-thickness simulated refrigerator panels containing foam enclosed between solid plastic sheets, and thin slices of core foam cut from similar panels. Results are presented for the first three years of a multi-year aging study. Preliminary comparisons of measured data with predictions of a mathematical aging model are presented.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6b6dad4476b65812fdc95b99289b2ed4 https://doi.org/10.1177/0021955x02038004142 Zobrazit plný text záznamu