Recycling of natural rubber latex waste and its interaction in epoxidised natural rubber
Metadata of CSIR Papers
View Archive Info| Field | Value | |
| Title |
Recycling of natural rubber latex waste and its interaction in epoxidised natural rubber
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| Creator |
Mathew, G
Singh, RP Nair, NR Thomas, S |
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| Subject |
Polymer Science
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| Description |
The waste rubber formed in latex-based industries is around 10-15% of the rubber consumed. The formation of a higher percentage of waste latex rubber (WLR) in latex Factories is due to the unstable nature of the latex compound and the strict specifications in the quality of latex products. These latex rejects contain about 95% rubber hydrocarbon of very high quality, which is only lightly cross-linked. These rejects, if not properly used, can create serious ecological and environmental problems. The authors have developed a cost-effective technique for the reuse of WLR in epoxidised natural rubber (ENR). The effect of powdered rejects on the curing behaviour, mechanical performance and swelling nature has been investigated. The cure characteristics such as optimum cure time, rheometric scorch time and induction time, are found to decrease with increasing concentration of latex waste filler. When the vulcanisation system is conventional, the finest size filler shows superior mechanical performance while the order of performance is reversed when the vulcanisation mode changes to efficient. The applications and limitations of several theoretical models in describing the tensile modulus of the samples have been demonstrated. A three-layer model has been used to study the migration of sulphur from ENR to the latex filler phase. The extent of sulphur migration in the case of different particle sizes of latex waste filler in two different vulcanisation systems has been analysed. The failure behaviour of the samples was analysed using scanning electron microscopy. The study shows that waste latex rubber can be used as filler in ENR economically. (C) 2000 Elsevier Science Ltd. All rights reserved.
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| Publisher |
ELSEVIER SCI LTDOXFORDTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
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| Date |
2011-09-24T09:33:44Z
2011-09-24T09:33:44Z 2001 |
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| Type |
Article
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| Identifier |
POLYMER
0032-3861 http://hdl.handle.net/123456789/24171 |
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| Language |
English
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