Effect of Ultraviolet Irradiation on Selected Plastic Films in Vacuum.

Abstract

Selected plastic films which had possible application as encapsulants for thin-film cadmium sulfide solar cells were irradiated in vacuum by ultraviolet light below 3000 angstroms for various lengths of time up to 5266 hours. The light intensity was between 0.67 and 1 times the integrated solar intensity below 3000 angstroms at 1 astronomical unit. The change in optical trans-mission with irradiation time was measured from 0.35 to 2.7 microns, and changes in percent elongation and breaking strength were measured at room temperature. Of the films tested, the most resistant to damage was H-film, a polyimide, and weather-durable Mylar was the next most resistant.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1965
Accession Number
ADA307677

Entities

People

  • Evelyn Anagnostou

Organizations

  • Glenn Research Center

Tags

DTIC Thesaurus Topics

  • Composite Materials
  • Compound Semiconductors
  • Dielectric Polymers
  • Electromagnetic Radiation
  • Environment
  • Films
  • Lamps
  • Light Sources
  • Mechanical Properties
  • Metal Plates
  • Optical Properties
  • Plastics
  • Radiation
  • Solar Cells
  • Solar Spectrum
  • Space Environments
  • Tensile Strength

Fields of Study

  • Physics

Readers

  • Polymer Science and Engineering.
  • Spectroscopy.