Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/3522
Título: | Dynamic mechanical analysis and creep behaviour of ß-PVDF films |
Autor(es): | Mano, J. F. Sencadas, Vítor João Gomes Silva Costa, A. Mello Lanceros-Méndez, S. |
Palavras-chave: | Polyvinylidene fluoride Creep Mechanical behaviour Relaxations DMA |
Data: | 15-Abr-2004 |
Editora: | Elsevier 1 |
Revista: | Materials Science and Engineering: A |
Citação: | "Materials Science and Engineering A". ISSN 0921-5093. 370:1/2 (2004) 201-207. |
Resumo(s): | In this work, tensile dynamic mechanical analysis (DMA) was used to characterise the solid-state rheological properties of a commercial ß-polyvinylidene fluoride (PVDF) film in the two main directions (longitudinal and transversal to the stretch direction). The ß-relaxation, assigned to the segmental motions within the amorphous phase, is observed at∼−25 ◦C. The alpha-c-relaxation is observed above room temperature. This relaxation is the main responsible for the anelastic properties of the material and to the short-term creep behaviour. Longer-term creep tests along the longitudinal direction were also performed and the Eyring model was applied, in order to characterize the flow-process within the polymeric structure. The results suggest that long-term creep is mostly controlled by the deformation of amorphous tie-chains that connect adjacent crystalline lamellae. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/3522 |
DOI: | 10.1016/j.msea.2002.12.002 |
ISSN: | 0921-5093 |
Versão da editora: | http://www.elsevier.com/wps/find/journaldescription.cws_home/504098/description#description |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDF - FCD - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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vsencadas1.pdf | 125,66 kB | Adobe PDF | Ver/Abrir |