Accession Number : ADA301819

Title :   Development of 400 deg. F Sealants for Flat Plate Solar Collector Construction and Installation.

Descriptive Note : Final rept. 1 Oct 78-30 Sep 79,

Corporate Author : PRODUCTS RESEARCH AND CHEMICAL CORP GLENDALE CA

Personal Author(s) : Morris, Lester ; Schubert, R. J.

PDF Url : ADA301819

Report Date : MAR 1980

Pagination or Media Count : 71

Abstract : Twenty candidate sealants representing ten different polymer types were evaluated as potential solar collector sealants. Polymer types tested included epichlorohydrin rubber, EPDM rubber, silicone, polysulfide, acrylate rubber, and a fluoroelastomer. Initial screening of sealants consisted of measuring high temperature stability and adhesion retention. Several sealant compositions exhibited satisfactory performance in these tests and were selected for further evaluation. These materials were based on an EPDM rubber, a Viton fluoroelastomer, and silicone polymers. Further testing of these candidate materials included determination of adhesion retention under UV/water/heat conditions, fogging temperature, low temperature flexibility, and physical properties. Four silicone-based materials appeared to be suitable candidates for sealing solar collectors. These include Dow Corning 90-006-02 and 3120, General Electric 1200, and PR-1939 from Products Research and Chemical Corporation. (MM)

Descriptors :   *POLYMERS, *ELASTOMERS, *RUBBER, *POLYSULFIDES, *SEALING COMPOUNDS, *SOLAR COLLECTORS, *SILICONE PLASTICS, TENSILE STRENGTH, AGING(MATERIALS), PHYSICAL PROPERTIES, HIGH TEMPERATURE, ADHESION, THERMAL STABILITY, STRENGTH(MECHANICS), POLYPROPYLENE, INSTALLATION, SILANES, EPOXY COMPOSITES, EPOXY RESINS, ACRYLATES, FLUOROPOLYMERS, HARDNESS, ELONGATION, SILICONES, FLAT PLATE MODELS, NITRILE RUBBER, TEARING, FORMICIDAE, RUBBER SEALS.

Subject Categories : Electric Power Production and Distribution
      Adhesives, Seals and Binders
      Elastomers and Rubber

Distribution Statement : APPROVED FOR PUBLIC RELEASE