Accession Number : ADA302531

Title :   Solar Collectors.

Descriptive Note : Technical rept. no. 1, 5 Sep 78-5 Mar 79,

Corporate Author : SPRINGBORN LABS INC ENFIELD CT

Personal Author(s) : Baum, B. ; Gage, M.

PDF Url : ADA302531

Report Date : 27 APR 1979

Pagination or Media Count : 55

Abstract : A broad information search was carried out in four areas: glazings, housing materials, acrylic coatings, etching processes and AR coatings. An extensive list of all (known) U. S. transparent polymers was developed as well as tables of plastic, ceramic and metallic materials that could conceivably function as a housing. In addition, a compilation was made of commercially available solvent and water base acrylic coatings for use as a UV protective coating for the glazing. Eighteen transparent polymers were chosen as possible glazings and twelve materials (plastic and wood) as possible housings and exposed in the Weather Ometer as tensile bars and for the glazings as disks for optical transmission.These same materials were also exposed on our roof to monitor soiling. A variety of solvent and water base acrylics were selected as protective coatings and ordered. Two commercial films - Tedlar 20 and Halar 500 - with strong absorption in the Uv and two commercial films containing UV absorbers - Tedlar UT and Korad 2OlR - were laminated by several different processes to four promising glazing materials: polyvinyl fluoride (Tedlar), polymethyl methacrylate (Plexiglass), cross linked ethylene/vinyl acetate and thermoplastic polyester (Lumar). A variety of etching processes were briefly explored and AR coating studies started on the above four glazing films.

Descriptors :   *HOUSINGS, *SOLAR COLLECTORS, METALS, ULTRAVIOLET RADIATION, MONITORING, POLYMERS, TENSILE PROPERTIES, POLYMETHYL METHACRYLATE, ACRYLIC RESINS, TRANSPARENCE, ETCHING, CERAMIC MATERIALS, ABSORBERS(MATERIALS), POLYMERIC FILMS, LIGHT TRANSMISSION, PROTECTIVE COATINGS, COMMERCIAL EQUIPMENT, THERMOPLASTIC RESINS, PLASTICS, POLYESTER PLASTICS, VINYL PLASTICS, PLASTIC COATINGS, GLAZES.

Subject Categories : Electric Power Production and Distribution
      Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE