Strain-induced crystallization of natural rubber and cross-link densities heterogeneities

Strain-induced crystallization (SIC) of natural rubber (NR) is characterized during a cyclic deformation at room temperature and low strain rate (~10–3 s–1) using in situ wide angle X-rays scattering (WAXS) measurements. The crystallinity index (CI) and average size of the crystallites in the three...

Descripción completa

Detalles Bibliográficos
Autores: Candau, Nicolas|||0000-0002-1559-8696, Laghmach, Rabia, Chazeau, Laurent, Chenal, Jean Marc, Gauthier, Catherine, Biben, Thierry, Munch, Etienne
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/373768
Acceso en línea:https://hdl.handle.net/2117/373768
https://dx.doi.org/10.1021/ma5006843
Access Level:acceso abierto
Palabra clave:Rubber
Crystallization
Strain induced crystallization
Natural rubber
In-situ WAXS
Network heterogeneities
Cautxú
Cristal·lització
Àrees temàtiques de la UPC::Enginyeria dels materials
id ES_69fe993be7282bb4a552df82fedce5ac
oai_identifier_str oai:upcommons.upc.edu:2117/373768
network_acronym_str ES
network_name_str España
repository_id_str
spelling Strain-induced crystallization of natural rubber and cross-link densities heterogeneitiesCandau, Nicolas|||0000-0002-1559-8696Laghmach, RabiaChazeau, LaurentChenal, Jean MarcGauthier, CatherineBiben, ThierryMunch, EtienneRubberCrystallizationStrain induced crystallizationNatural rubberIn-situ WAXSNetwork heterogeneitiesCautxúCristal·litzacióÀrees temàtiques de la UPC::Enginyeria dels materialsStrain-induced crystallization (SIC) of natural rubber (NR) is characterized during a cyclic deformation at room temperature and low strain rate (~10–3 s–1) using in situ wide angle X-rays scattering (WAXS) measurements. The crystallinity index (CI) and average size of the crystallites in the three main directions are measured during loading and unloading. A scenario describing SIC is then proposed, assuming that SIC corresponds to the successive appearance of crystallite populations whose nucleation and growth depend on the local network density. From this scenario, a methodology, coupling experimental observations and thermodynamic description is developed to determine the distribution of the network chain density associated with the size of a corresponding crystallite population. Finally, complex cyclic tests are performed. They suggest the existence of a memory effect in the chains involved in crystallization, which eases the nucleation process of the crystallites.Peer ReviewedAmerican Chemical Society (ACS)20142014-08-2620222022-09-30journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/373768https://dx.doi.org/10.1021/ma5006843reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3737682026-05-27T15:37:01Z
dc.title.none.fl_str_mv Strain-induced crystallization of natural rubber and cross-link densities heterogeneities
title Strain-induced crystallization of natural rubber and cross-link densities heterogeneities
spellingShingle Strain-induced crystallization of natural rubber and cross-link densities heterogeneities
Candau, Nicolas|||0000-0002-1559-8696
Rubber
Crystallization
Strain induced crystallization
Natural rubber
In-situ WAXS
Network heterogeneities
Cautxú
Cristal·lització
Àrees temàtiques de la UPC::Enginyeria dels materials
title_short Strain-induced crystallization of natural rubber and cross-link densities heterogeneities
title_full Strain-induced crystallization of natural rubber and cross-link densities heterogeneities
title_fullStr Strain-induced crystallization of natural rubber and cross-link densities heterogeneities
title_full_unstemmed Strain-induced crystallization of natural rubber and cross-link densities heterogeneities
title_sort Strain-induced crystallization of natural rubber and cross-link densities heterogeneities
dc.creator.none.fl_str_mv Candau, Nicolas|||0000-0002-1559-8696
Laghmach, Rabia
Chazeau, Laurent
Chenal, Jean Marc
Gauthier, Catherine
Biben, Thierry
Munch, Etienne
author Candau, Nicolas|||0000-0002-1559-8696
author_facet Candau, Nicolas|||0000-0002-1559-8696
Laghmach, Rabia
Chazeau, Laurent
Chenal, Jean Marc
Gauthier, Catherine
Biben, Thierry
Munch, Etienne
author_role author
author2 Laghmach, Rabia
Chazeau, Laurent
Chenal, Jean Marc
Gauthier, Catherine
Biben, Thierry
Munch, Etienne
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Rubber
Crystallization
Strain induced crystallization
Natural rubber
In-situ WAXS
Network heterogeneities
Cautxú
Cristal·lització
Àrees temàtiques de la UPC::Enginyeria dels materials
topic Rubber
Crystallization
Strain induced crystallization
Natural rubber
In-situ WAXS
Network heterogeneities
Cautxú
Cristal·lització
Àrees temàtiques de la UPC::Enginyeria dels materials
description Strain-induced crystallization (SIC) of natural rubber (NR) is characterized during a cyclic deformation at room temperature and low strain rate (~10–3 s–1) using in situ wide angle X-rays scattering (WAXS) measurements. The crystallinity index (CI) and average size of the crystallites in the three main directions are measured during loading and unloading. A scenario describing SIC is then proposed, assuming that SIC corresponds to the successive appearance of crystallite populations whose nucleation and growth depend on the local network density. From this scenario, a methodology, coupling experimental observations and thermodynamic description is developed to determine the distribution of the network chain density associated with the size of a corresponding crystallite population. Finally, complex cyclic tests are performed. They suggest the existence of a memory effect in the chains involved in crystallization, which eases the nucleation process of the crystallites.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-08-26
2022
2022-09-30
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/373768
https://dx.doi.org/10.1021/ma5006843
url https://hdl.handle.net/2117/373768
https://dx.doi.org/10.1021/ma5006843
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Chemical Society (ACS)
publisher.none.fl_str_mv American Chemical Society (ACS)
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869410069293039616
score 15.300719

Similares en LA Referencia