2026-09-19T11:55:22Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/1502732023-04-01T03:07:49Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Olsen, Bradley D.
Troyano-Valls, Clara
Massachusetts Institute of Technology. Department of Chemical Engineering
2023-03-31T14:44:19Z
2023-03-31T14:44:19Z
2023-02
2023-01-27T18:24:37.079Z
https://hdl.handle.net/1721.1/150273
https://orcid.org/0000-0002-4535-1942
Tire waste management is a significant and unsolved issue that continues to threaten human and environmental health. Here, a single component adhesive developed by our group is further optimized to produce rubber composites containing 40 wt% recycled rubber crumb and an unused polybutadiene matrix. The best-performing 40 wt% samples outperform those produced in the previous study, and which only contain 15 wt% recycled content. To push the recycled content in the composite even further, the single component adhesive was combined with devulcanization to produce a 95 wt% sample that also outperforms the 15 wt% samples from the predecessor study. Finally, scanning electron microscopy and elemental mapping enabled a new understanding of the architecture of the composites, and shows that the adhesive is not acting as a coating to the rubber crumb, but is instead shearing off substantially and distributing itself in the composite.
S.M.
Massachusetts Institute of Technology
In Copyright - Educational Use Permitted
Copyright MIT
http://rightsstatements.org/page/InC-EDU/1.0/
Advances in single component adhesive enable the production of high-performance rubber composites containing 40 wt% rubber waste and 95 wt% rubber waste when supplemented with devulcanization
Thesis
application/pdf
Master
Master of Science in Chemical Engineering
Publication
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<Abstract>Tire waste management is a significant and unsolved issue that continues to threaten human and environmental health. Here, a single component adhesive developed by our group is further optimized to produce rubber composites containing 40 wt% recycled rubber crumb and an unused polybutadiene matrix. The best-performing 40 wt% samples outperform those produced in the previous study, and which only contain 15 wt% recycled content. To push the recycled content in the composite even further, the single component adhesive was combined with devulcanization to produce a 95 wt% sample that also outperforms the 15 wt% samples from the predecessor study. Finally, scanning electron microscopy and elemental mapping enabled a new understanding of the architecture of the composites, and shows that the adhesive is not acting as a coating to the rubber crumb, but is instead shearing off substantially and distributing itself in the composite.</Abstract>
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