Setting relationships between structure and devulcanization of ground tire rubber and their effect on self-healing elastomers

Producción Científica

Detalles Bibliográficos
Autores: Pastor Barajas, José María, Alonso Pastor, Luis Eduardo, Nuñez Carrero, Karina Carla, Araujo Morera, Javier, Hernández Santana, Marianella
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universidad de Valladolid
Repositorio:UVaDOC. Repositorio Documental de la Universidad de Valladolid
OAI Identifier:oai:uvadoc.uva.es:10324/59093
Acceso en línea:https://doi.org/10.3390/polym14010011
https://uvadoc.uva.es/handle/10324/59093
Access Level:acceso abierto
Palabra clave:Reciclaje (Residuos, etc.)
Mechanics
End-of-life tires (ELTs)
Ground tire rubber (GTR)
Grinding process
Devulcanization
Neumáticos fuera de uso (ELT)
Caucho de neumáticos molido (GTR)
Proceso de trituración
Desvulcanización
2210.28-1 Preparación y Caracterización de Materiales Inorgánicos
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spelling Setting relationships between structure and devulcanization of ground tire rubber and their effect on self-healing elastomersPastor Barajas, José MaríaAlonso Pastor, Luis EduardoNuñez Carrero, Karina CarlaAraujo Morera, JavierHernández Santana, MarianellaReciclaje (Residuos, etc.)MechanicsEnd-of-life tires (ELTs)Ground tire rubber (GTR)Grinding processDevulcanizationNeumáticos fuera de uso (ELT)Caucho de neumáticos molido (GTR)Proceso de trituraciónDesvulcanización2210.28-1 Preparación y Caracterización de Materiales InorgánicosProducción CientíficaThe use of devulcanized tire powder as an effective reinforcement in self-healing styrene-butadiene rubber (SBR) compounds has been investigated for the first time in this work. For this purpose, the evolution of the microstructure of the rubber from end-of-life tires (ELTs) was studied during granulation, grinding and devulcanization through an exhaustive characterization work in order to relate the final microstructure with the mechanical response of the repaired systems. Different morphologies (particle size distribution and specific surface area) obtained by cryogenic and water jet grinding processes, as well as different devulcanization techniques (thermo-mechanical, microwave, and thermo-chemical), were analyzed. The results demonstrated the key influence of the morphology of the ground tire rubber (GTR) on the obtained devulcanized products (dGTR). The predictions of the Horikx curves regarding the selectivity of the applied devulcanization processes were validated, thereby; a model of the microstructure of these materials was defined. This model made it possible to relate the morphology of GTR and dGTR with their activity as reinforcement in self-healing formulations. In this sense, higher specific surface area and percentage of free surface polymeric chains resulted in better mechanical performance and more effective healing. Such a strategy enabled an overall healing efficiency of more than 80% in terms of a real mechanical recovery (tensile strength and elongation at break), when adding 30 phr of dGTR. These results open a great opportunity to find the desired balance between the mechanical properties before and after self-repair, thus providing a high technological valorization to waste tires.Agencia Estatal de Investigación (RYC2017-22837 y PRE2018-084732)Ministerio de Ciencia e Innovación - CDTI (CER-2021 1009)MDPI2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://doi.org/10.3390/polym14010011https://uvadoc.uva.es/handle/10324/59093reponame:UVaDOC. Repositorio Documental de la Universidad de Valladolidinstname:Universidad de ValladolidIngléshttps://www.mdpi.com/2073-4360/14/1/11info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/oai:uvadoc.uva.es:10324/590932026-06-13T12:44:47Z
dc.title.none.fl_str_mv Setting relationships between structure and devulcanization of ground tire rubber and their effect on self-healing elastomers
title Setting relationships between structure and devulcanization of ground tire rubber and their effect on self-healing elastomers
spellingShingle Setting relationships between structure and devulcanization of ground tire rubber and their effect on self-healing elastomers
Pastor Barajas, José María
Reciclaje (Residuos, etc.)
Mechanics
End-of-life tires (ELTs)
Ground tire rubber (GTR)
Grinding process
Devulcanization
Neumáticos fuera de uso (ELT)
Caucho de neumáticos molido (GTR)
Proceso de trituración
Desvulcanización
2210.28-1 Preparación y Caracterización de Materiales Inorgánicos
title_short Setting relationships between structure and devulcanization of ground tire rubber and their effect on self-healing elastomers
title_full Setting relationships between structure and devulcanization of ground tire rubber and their effect on self-healing elastomers
title_fullStr Setting relationships between structure and devulcanization of ground tire rubber and their effect on self-healing elastomers
title_full_unstemmed Setting relationships between structure and devulcanization of ground tire rubber and their effect on self-healing elastomers
title_sort Setting relationships between structure and devulcanization of ground tire rubber and their effect on self-healing elastomers
dc.creator.none.fl_str_mv Pastor Barajas, José María
Alonso Pastor, Luis Eduardo
Nuñez Carrero, Karina Carla
Araujo Morera, Javier
Hernández Santana, Marianella
author Pastor Barajas, José María
author_facet Pastor Barajas, José María
Alonso Pastor, Luis Eduardo
Nuñez Carrero, Karina Carla
Araujo Morera, Javier
Hernández Santana, Marianella
author_role author
author2 Alonso Pastor, Luis Eduardo
Nuñez Carrero, Karina Carla
Araujo Morera, Javier
Hernández Santana, Marianella
author2_role author
author
author
author
dc.subject.none.fl_str_mv Reciclaje (Residuos, etc.)
Mechanics
End-of-life tires (ELTs)
Ground tire rubber (GTR)
Grinding process
Devulcanization
Neumáticos fuera de uso (ELT)
Caucho de neumáticos molido (GTR)
Proceso de trituración
Desvulcanización
2210.28-1 Preparación y Caracterización de Materiales Inorgánicos
topic Reciclaje (Residuos, etc.)
Mechanics
End-of-life tires (ELTs)
Ground tire rubber (GTR)
Grinding process
Devulcanization
Neumáticos fuera de uso (ELT)
Caucho de neumáticos molido (GTR)
Proceso de trituración
Desvulcanización
2210.28-1 Preparación y Caracterización de Materiales Inorgánicos
description Producción Científica
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.3390/polym14010011
https://uvadoc.uva.es/handle/10324/59093
url https://doi.org/10.3390/polym14010011
https://uvadoc.uva.es/handle/10324/59093
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://www.mdpi.com/2073-4360/14/1/11
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:UVaDOC. Repositorio Documental de la Universidad de Valladolid
instname:Universidad de Valladolid
instname_str Universidad de Valladolid
reponame_str UVaDOC. Repositorio Documental de la Universidad de Valladolid
collection UVaDOC. Repositorio Documental de la Universidad de Valladolid
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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