Nanostructure evolution mechanisms during slow load-cycling of oriented HDPE/PA microfibrillar blends as a function of composition
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , |
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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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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1799132257400651776 |