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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Costa, A. M.
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Publications (5/5 displayed)
- 2014In vitro and in vivo evaluation of silicated hydroxyapatite and impact of insulin adsorptioncitations
- 2007Study of polar relaxation processes in Sr(1-1.5x)LaxTiO3 ceramics by using field-induced thermally stimulated currentscitations
- 2005Lattice dynamics and negative search for pyroelectricity in Sr (1-1.5x) LaxTiO3 ceramicscitations
- 2004Dynamic mechanical analysis and creep behaviour of beta-PVDF filmscitations
- 2001FTIR and DSC studies of mechanically deformed β-PVDF filmscitations
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article
Dynamic mechanical analysis and creep behaviour of beta-PVDF films
Abstract
In this work, tensile dynamic mechanical analysis (DMA) was used to characterise the solid-state theological properties of a commercial P-polyvinylidene fluoride (PVDF) film in the two main directions (longitudinal and transversal to the stretch direction). The P-relaxation, assigned to the segmental motions within the amorphous phase, is observed at similar to-25 degreesC. 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. (C) 2003 Published by Elsevier B.V.