Accession Number : ADA306052

Title :   Collector Sealants and Breathing.

Descriptive Note : Final rept. 25 Sep 78-31 Dec 79,

Corporate Author : WESTINGHOUSE ELECTRIC CORP PITTSBURGH PA

Personal Author(s) : Mendelsohn, M. A. ; Luck, R. M. ; Yeoman, F. A. ; Navish, F. W., Jr

PDF Url : ADA306052

Report Date : FEB 1980

Pagination or Media Count : 281

Abstract : An extensive literature survey followed by laboratory screening tests was used to select candidate Class PS (preformed rubber seals) and Class SC (sealing compounds or caulks) elastomers for more comprehensive laboratory testing to assess their performance capabilities under the harsh environment of a thermal solar collector cell. Tests employed included thermal aging in air, hydrolytic stability, weathering resistance, corrosion of metallic substrates, ozone resistance and fungal susceptibility. Since the most hostile factor in the solar collector cell environment is long-term exposure to elevated temperatures in air, the thermal stability testing was extended to the monitoring of change in several physical properties during thermal aging in air. These included compression set, tensile characteristics, hardness and weight loss. jg p15

Descriptors :   *SEALING COMPOUNDS, *SOLAR COLLECTORS, *RUBBER SEALS, TEST AND EVALUATION, COMPRESSION, THERMAL PROPERTIES, METALS, STABILITY, LABORATORY TESTS, AGING(MATERIALS), CORROSION, EXPOSURE(GENERAL), LITERATURE SURVEYS, PERFORMANCE(ENGINEERING), PHYSICAL PROPERTIES, HIGH TEMPERATURE, RESISTANCE, TENSILE PROPERTIES, ELASTOMERS, THERMAL STABILITY, SUBSTRATES, FUNGI, HEAT, HYDROLYSIS, OZONE, WEIGHT REDUCTION, WEATHERING, MATERIAL FORMING, SOLID ELECTROLYTES, RESERVE BATTERIES.

Subject Categories : Adhesives, Seals and Binders
      Physical Chemistry
      Electric Power Production and Distribution

Distribution Statement : APPROVED FOR PUBLIC RELEASE