Premium
Aging of vulcanizates of formulations for rubber seals
Author(s) -
Subramanian V.,
Ganapathy S.
Publication year - 1998
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19981031)70:5<985::aid-app19>3.0.co;2-s
Subject(s) - natural rubber , acrylonitrile , epdm rubber , materials science , neoprene , ultimate tensile strength , composite material , elongation , elastomer , chloroprene , monomer , diene , accelerated aging , mooney viscosity , activation energy , polymer chemistry , polymer , copolymer , chemistry , organic chemistry
Typical formulations based on NBR (acrylonitrile butadiene rubber), EPDM (ethylene propylene diene monomer rubber), and a NBR–CR (polychloroprene rubber) blend were studied for various properties under accelerated air aging conditions. The trend in tensile properties indicated the propensity of these formulations to oxidative degradation. The derivatives of these properties, such as their retention indices, strain energy, and Mooney–Rivlin constants also showed similar trends. Some of the observations correlate to shelf‐aging data, but the time to rupture data derived from ultimate elongation values did not provide tangible conclusions. © 1998 John Wiley & Sons, Inc. J. Appl. Polym. Sci. 70: 985–994, 1998