Effect Of Antioxidants And The Structure O:F Vulcanizates On Tension Set
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Date
1981-03
Authors
ABU BAKAR, MOHD OTHMAN
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Abstract
The oxidative ageing of unpurified natural rubber vulcanizates
were investi gated by tension set measurements, carried out under
accelerated heat ageing condition. Vulcanizate,s with and without the
addition of conventional antioxidants were used and the results were
compared with that obtained from oxygen absorption and stress relaxation
measurements. It was found that, the order of oxidisibility, for the ,
unprotected vUlcanizates cured with various vulcanizing systems was the
same as that obtained from oxygen absorption and stress relaxation studies
carried out on protected vulcanizates (i.e.: CV system >EV system>
TMTD> Peroxide). When mixtures of antioxidants were used, no synergism
were observed, even though synergistic effect between thiocarbamate and
the amine or phenol antioxi dants were reported.
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Keywords
Effect Of Antioxidants And , The Structure O:F Vulcanizates On Tension Set