Nanostructure evolution mechanisms during slow load-cycling of oriented HDPE/PA microfibrillar blends as a function of composition

Detalhes bibliográficos
Autor(a) principal: Zeinolebadi, Ahmad
Data de Publicação: 2012
Outros Autores: Stribeck, N., Ganjaee-Sari, Morteza, Dencheva, Nadya Vasileva, Denchev, Z., Botta, Stephan
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/20767
Resumo: Oriented precursors of MFCs consisting of HDPE and PA6 or PA12 are studied during strain-controlled slow load-cycling. In the PA6-containing blends a strongly retarded nanostrain response is detected. Compatibilization induces nanostrain heterogenization. Stress fatigue is lower in the PA12 blends, but hardly decreased by the compatibilizer. Selective migration of the compatibilizer into a disordered semi-crystalline fraction of the HDPE matrix can explain the findings. The semi-crystalline HDPE entities in PA6 blends appear more disordered than in PA12-blends. An analysis of the HDPE nanostructure evolution during cycling reveals epitaxial strain crystallization. Uncompatibilized PA6 blends cycled about high pre-strain show plastic flow but nanoscopic shrinkage in the semi-crystalline stacks.
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spelling Nanostructure evolution mechanisms during slow load-cycling of oriented HDPE/PA microfibrillar blends as a function of compositionCompatibilizationCompositesFatigue analysisSAXSStructure-property relationsScience & TechnologyOriented precursors of MFCs consisting of HDPE and PA6 or PA12 are studied during strain-controlled slow load-cycling. In the PA6-containing blends a strongly retarded nanostrain response is detected. Compatibilization induces nanostrain heterogenization. Stress fatigue is lower in the PA12 blends, but hardly decreased by the compatibilizer. Selective migration of the compatibilizer into a disordered semi-crystalline fraction of the HDPE matrix can explain the findings. The semi-crystalline HDPE entities in PA6 blends appear more disordered than in PA12-blends. An analysis of the HDPE nanostructure evolution during cycling reveals epitaxial strain crystallization. Uncompatibilized PA6 blends cycled about high pre-strain show plastic flow but nanoscopic shrinkage in the semi-crystalline stacks.Hamburg Synchrotron Radiation Laboratory (HASYLAB)Fundação para a Ciência e Tecnologia (FCT) - SFRH/BPD/45252/2008.WileyUniversidade do MinhoZeinolebadi, AhmadStribeck, N.Ganjaee-Sari, MortezaDencheva, Nadya VasilevaDenchev, Z.Botta, Stephan2012-112012-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/20767eng1438–749210.1002/mame.201100375http://onlinelibrary.wiley.com/info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T11:59:32Zoai:repositorium.sdum.uminho.pt:1822/20767Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:49:19.327166Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Nanostructure evolution mechanisms during slow load-cycling of oriented HDPE/PA microfibrillar blends as a function of composition
title Nanostructure evolution mechanisms during slow load-cycling of oriented HDPE/PA microfibrillar blends as a function of composition
spellingShingle Nanostructure evolution mechanisms during slow load-cycling of oriented HDPE/PA microfibrillar blends as a function of composition
Zeinolebadi, Ahmad
Compatibilization
Composites
Fatigue analysis
SAXS
Structure-property relations
Science & Technology
title_short Nanostructure evolution mechanisms during slow load-cycling of oriented HDPE/PA microfibrillar blends as a function of composition
title_full Nanostructure evolution mechanisms during slow load-cycling of oriented HDPE/PA microfibrillar blends as a function of composition
title_fullStr Nanostructure evolution mechanisms during slow load-cycling of oriented HDPE/PA microfibrillar blends as a function of composition
title_full_unstemmed Nanostructure evolution mechanisms during slow load-cycling of oriented HDPE/PA microfibrillar blends as a function of composition
title_sort Nanostructure evolution mechanisms during slow load-cycling of oriented HDPE/PA microfibrillar blends as a function of composition
author Zeinolebadi, Ahmad
author_facet Zeinolebadi, Ahmad
Stribeck, N.
Ganjaee-Sari, Morteza
Dencheva, Nadya Vasileva
Denchev, Z.
Botta, Stephan
author_role author
author2 Stribeck, N.
Ganjaee-Sari, Morteza
Dencheva, Nadya Vasileva
Denchev, Z.
Botta, Stephan
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Zeinolebadi, Ahmad
Stribeck, N.
Ganjaee-Sari, Morteza
Dencheva, Nadya Vasileva
Denchev, Z.
Botta, Stephan
dc.subject.por.fl_str_mv Compatibilization
Composites
Fatigue analysis
SAXS
Structure-property relations
Science & Technology
topic Compatibilization
Composites
Fatigue analysis
SAXS
Structure-property relations
Science & Technology
description Oriented precursors of MFCs consisting of HDPE and PA6 or PA12 are studied during strain-controlled slow load-cycling. In the PA6-containing blends a strongly retarded nanostrain response is detected. Compatibilization induces nanostrain heterogenization. Stress fatigue is lower in the PA12 blends, but hardly decreased by the compatibilizer. Selective migration of the compatibilizer into a disordered semi-crystalline fraction of the HDPE matrix can explain the findings. The semi-crystalline HDPE entities in PA6 blends appear more disordered than in PA12-blends. An analysis of the HDPE nanostructure evolution during cycling reveals epitaxial strain crystallization. Uncompatibilized PA6 blends cycled about high pre-strain show plastic flow but nanoscopic shrinkage in the semi-crystalline stacks.
publishDate 2012
dc.date.none.fl_str_mv 2012-11
2012-11-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/20767
url http://hdl.handle.net/1822/20767
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1438–7492
10.1002/mame.201100375
http://onlinelibrary.wiley.com/
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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