Details
| Original language | English |
|---|---|
| Pages (from-to) | 2809-2820 |
| Number of pages | 12 |
| Journal | Journal of applied polymer science |
| Volume | 130 |
| Issue number | 4 |
| Publication status | Published - 20 Aug 2013 |
| Externally published | Yes |
Abstract
In this study, a new approach to reduce the environmental effects of end of life and waste rubber and, at the same time, to minimize the ZnO levels in rubber compounds is presented. The use of tire crumb as activator for sulfur vulcanization is investigated. To give an insight into the reaction mechanism, the approach is tested using model compound vulcanization (MCV) with squalene as a model molecule. The results showed that the use of the new recipe does not alter the kinetics of the vulcanization and that the cross-link degree achieved is nearly equivalent to using ZnO. However, in real rubber mixtures [natural rubber (NR), butadiene rubber (BR), and styrene-butadiene rubber (SBR)], there is not a correlation between the promising characteristics seen in MCV and the actual performance of tire crumb. The extent of cross-linking is significantly lower and the mechanical properties are worst in most of the cases. In spite of that, the results found in MCV suggest that further research should be carried out in order to take advantage of the features observed by improving or facilitating the interaction between the chemicals present in the tire crumb and the ingredients added to the rubber matrix.
Keywords
- elastomers, recycling, rubber
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Materials Science(all)
- Surfaces, Coatings and Films
- Materials Science(all)
- Polymers and Plastics
- Materials Science(all)
- Materials Chemistry
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In: Journal of applied polymer science, Vol. 130, No. 4, 20.08.2013, p. 2809-2820.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Exploring tire crumb as activator for sulfur vulcanization
AU - Guzmán, Manuel
AU - Agullõ, Núria
AU - Giese, Ulrich
AU - Borrõs, Salvador
PY - 2013/8/20
Y1 - 2013/8/20
N2 - In this study, a new approach to reduce the environmental effects of end of life and waste rubber and, at the same time, to minimize the ZnO levels in rubber compounds is presented. The use of tire crumb as activator for sulfur vulcanization is investigated. To give an insight into the reaction mechanism, the approach is tested using model compound vulcanization (MCV) with squalene as a model molecule. The results showed that the use of the new recipe does not alter the kinetics of the vulcanization and that the cross-link degree achieved is nearly equivalent to using ZnO. However, in real rubber mixtures [natural rubber (NR), butadiene rubber (BR), and styrene-butadiene rubber (SBR)], there is not a correlation between the promising characteristics seen in MCV and the actual performance of tire crumb. The extent of cross-linking is significantly lower and the mechanical properties are worst in most of the cases. In spite of that, the results found in MCV suggest that further research should be carried out in order to take advantage of the features observed by improving or facilitating the interaction between the chemicals present in the tire crumb and the ingredients added to the rubber matrix.
AB - In this study, a new approach to reduce the environmental effects of end of life and waste rubber and, at the same time, to minimize the ZnO levels in rubber compounds is presented. The use of tire crumb as activator for sulfur vulcanization is investigated. To give an insight into the reaction mechanism, the approach is tested using model compound vulcanization (MCV) with squalene as a model molecule. The results showed that the use of the new recipe does not alter the kinetics of the vulcanization and that the cross-link degree achieved is nearly equivalent to using ZnO. However, in real rubber mixtures [natural rubber (NR), butadiene rubber (BR), and styrene-butadiene rubber (SBR)], there is not a correlation between the promising characteristics seen in MCV and the actual performance of tire crumb. The extent of cross-linking is significantly lower and the mechanical properties are worst in most of the cases. In spite of that, the results found in MCV suggest that further research should be carried out in order to take advantage of the features observed by improving or facilitating the interaction between the chemicals present in the tire crumb and the ingredients added to the rubber matrix.
KW - elastomers
KW - recycling
KW - rubber
UR - http://www.scopus.com/inward/record.url?scp=84883054962&partnerID=8YFLogxK
U2 - 10.1002/app.39508
DO - 10.1002/app.39508
M3 - Article
AN - SCOPUS:84883054962
VL - 130
SP - 2809
EP - 2820
JO - Journal of applied polymer science
JF - Journal of applied polymer science
SN - 0021-8995
IS - 4
ER -