Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/20767
Título: | Nanostructure evolution mechanisms during slow load-cycling of oriented HDPE/PA microfibrillar blends as a function of composition |
Autor(es): | Zeinolebadi, Ahmad Stribeck, N. Ganjaee-Sari, Morteza Dencheva, Nadya Vasileva Denchev, Z. Botta, Stephan |
Palavras-chave: | Compatibilization Composites Fatigue analysis SAXS Structure-property relations |
Data: | Nov-2012 |
Editora: | Wiley |
Revista: | Macromolecular Materials and Engineering |
Resumo(s): | 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. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/20767 |
DOI: | 10.1002/mame.201100375 |
ISSN: | 1438–7492 |
Versão da editora: | http://onlinelibrary.wiley.com/ |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | IPC - Artigos em revistas científicas internacionais com arbitragem |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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MAME_SAXS_STRIBECK_REP.pdf | Documento principal | 598,28 kB | Adobe PDF | Ver/Abrir |