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Rubber Compounds from Devulcanized Ground Tire Rubber: Recipe Formulation and Characterization.
- Source :
- Polymers (20734360); Feb2024, Vol. 16 Issue 4, p455, 19p
- Publication Year :
- 2024
-
Abstract
- In this study, our focus was on developing and investigating rubber recipes that are suitable for devulcanized ground tire rubber (dGTR). Devulcanized rubber has a powdery or sticky uncured rubber-like appearance depending on the extent of main-chain degradation that occurs with selective crosslinking scission. Still, it has a significantly shorter scorch time than a new rubber compound. Therefore, our primary goal was to slow down the vulcanization process of dGTR and improve its mechanical properties via recipe development. We formulated several recipes (sulfur-, peroxide-, and phenolic resin-based) and studied the vulcanization process and the main properties of the revulcanized rubber sheets. We observed that the vulcanization process could be altered with different vulcanization methods: using peroxide and vulcanizing resin extended the process significantly. Peroxide vulcanization also provided enhanced elongation compared to sulfuric systems. With a balance of properties in mind, we selected a semi-efficient sulfur-based recipe and studied the characteristics of natural rubber/dGTR mixtures with the help of plasticizer oils. We successfully replaced a notable portion of natural rubber with dGTR, maintaining its properties without much compromise. [ABSTRACT FROM AUTHOR]
- Subjects :
- RUBBER
PEROXIDES
VULCANIZATION
TIRES
CIRCULAR economy
SOY oil
Subjects
Details
- Language :
- English
- ISSN :
- 20734360
- Volume :
- 16
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Polymers (20734360)
- Publication Type :
- Academic Journal
- Accession number :
- 175651564
- Full Text :
- https://doi.org/10.3390/polym16040455