Processing of thermoplastic elastomers (TPE) by in-situ ground tire rubber (GTR) vulcanization using waste ethylene-vinyl-acetate (wEVA) and dicumyl peroxide (DCP)
Tire rubber waste (TRW) is a complex mixture of materials, such as rubbers, steel, textile fibers, carbon black, and other additives. Its polluting capacity is a severe environmental problem, especially in landfills and waste management processes. As a practical solution to mitigate TRW’s environmen...
- Autores:
-
Suarez Loor, J.
Lazo, M.
Rigail, A.
Adrian, E.
Vera, J.
- Tipo de recurso:
- Conferencia (Ponencia)
- Fecha de publicación:
- 2024
- Institución:
- Universidad de los Andes
- Repositorio:
- Séneca: repositorio Uniandes
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.uniandes.edu.co:1992/76055
- Acceso en línea:
- https://hdl.handle.net/1992/76055
https://doi.org/10.51573/Andes.PPS39.GS.RE.2
https://repositorio.uniandes.edu.co/
- Palabra clave:
- Thermoplastic Elastomers, , ,
Vulcanization
Waste Plastic
Ground Tire Rubber
Ingeniería
- Rights
- openAccess
- License
- https://repositorio.uniandes.edu.co/static/pdf/aceptacion_uso_es.pdf
| Summary: | Tire rubber waste (TRW) is a complex mixture of materials, such as rubbers, steel, textile fibers, carbon black, and other additives. Its polluting capacity is a severe environmental problem, especially in landfills and waste management processes. As a practical solution to mitigate TRW’s environmental impact, thermoplastic elastomers (TPE) commonly reuse the ground tire rubber (GTR). This work presents an in-situ devulcanization of ground tire rubber (DGTR) and re-vulcanization of devulcanized ground tire rubber using dicumyl peroxide (DCP) and waste ethylene-vinyl-acetate (wEVA). The GTR was devulcanized through thermo-mechanical action and then blended with waste ethylene-vinyl-acetate (wEVA) and dicumyl peroxide (DCP) to produce the thermoplastic elastomer (TPE). This blending process was monitored using a torque rheometer and analyzed with differential scanning calorimetry (DSC) to evaluate the crosslinking reactions and kinetic behavior. The results indicated that in-situ vulcanization took place within the rheometer mixing chamber, evidenced by an increase in torque. DSC analysis of the DGTR-DCP-wEVA system confirmed the curing reaction prior to vulcanization. The resulting in-situ vulcanized TPE ensures improved component adhesion. This research offers practical insights into a scalable, non-advanced process for local plastics industries in developing countries to incorporate vulcanized TPEs, thereby enhancing their knowledge and understanding of this innovative approach. |
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