FACTORS INFLUENCING ACCELERATED OZONE TESTING AND WEATHERING OF CABLE COMPOSITIONS

Abstract

The ozone resistance of a number of SBR specimens containing different sunproofing waxes was studied under various conditions in the ozone chamber and in outdoor weathering. Information obtained from the study showed that: (1) In outdoor exposure, the temperature at the time of initial exposure has a decided effect on the rate of cracking of SBR compositions containing different waxes. (2) Specimens containing certain waxes that did not crack at the higher temperatures cracked quickly when exposed at low temperatures. (3) The geometry of the specimen and the manner of exposure appear to affect the rate of cracking. (4) The type of recipe employed has a definite influence on stability when exposed to weathering and ozone. On the basis of these results, satisfactory correlation with outdoor exposure may only be obtained by evaluating ozone test data at at least two temperatures, e.g., 40 and 100F.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1961
Accession Number
AD0656172

Entities

People

  • P. B. Stickney
  • S. Palinchak
  • W. J. Yurgen

Organizations

  • Battelle Memorial Institute

Tags

DTIC Thesaurus Topics

  • Accelerated Testing
  • Diameters
  • Electrical Insulation
  • Elongation
  • Fatty Acids
  • High Temperature
  • Laboratory Tests
  • Low Temperature
  • Materials
  • Physical Properties
  • Plastic Explosives
  • Resistance
  • Stearic Acid
  • Stress Concentration
  • Stresses
  • Weather
  • Weathering

Fields of Study

  • Environmental science

Readers

  • Materials Science and Engineering.
  • Polymer Science and Engineering.