A PRELIMINARY STUDY OF SOME METHODS FOR FOLLOWING THE ACCELERATED AGING AND LIFE PREDICTION OF RUBBERS

Authors
  1. Hiltz, J.A.
  2. Hattie, S.C.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
Forty three rubber samples aged at temperatures between 70C and 150C for periods up to three hundred days were investigated using hardness tests, dynamic mechanical analysis and pyrolysis-gas chromatography-mass spectrometry to determine if these techniques might be useful in monitoring the aging of the samples. The samples were formulated and aged at ARE Holton Heath and included twenty seven acrylonitrile-butadiene rubber samples, twelve polychloroprene rubber samples, and four polyisoprene rubber samples. All three techniques were capable of monitoring changes in the rubbers which correlated with the time and temperature of exposure of the samples. However, successful application of these techniques to the quantitative prediction of lifetime of elastomers from accelerated tests will require further experimentation.
Report Number
DREA-TM-89-205 — Technical Memorandum
Date of publication
15 Mar 1989
Number of Pages
45
DSTKIM No
89-01602
CANDIS No
59532
Format(s):
Hardcopy;Originator's fiche received by DSIS

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