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Crosslink formation during aging of natural rubber vulcanizates
Author(s) -
Maisey L. J.,
Scanlan J.
Publication year - 1963
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/app.1963.070070327
Subject(s) - natural rubber , stress relaxation , swelling , vulcanization , relaxation (psychology) , materials science , sulfur , polymer chemistry , antioxidant , accelerated aging , composite material , chemistry , organic chemistry , psychology , social psychology , creep
The effect of antioxidant on the crosslinking reaction occurring during the oxidation of sulphur vulcanizates of natural rubber was investigated by using both continuous and intermittent stress relaxation measurements. Similarly, by means of continuous stress relaxation and equilibrium swelling measurements the crosslinking reaction in vacuum was followed. The presence of antioxidant or removal of air reduced considerably both continuous and intermittent relaxation and also the difference between them, which measures the crosslinking. The crosslink formation must therefore form part of the sequence of oxidative reactions.