Extrusion of poly(vinylidene fluoride) recycled filaments: Effect of the processing cycles on the degree of crystallinity and electroactive phase content |
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| Authors: | MP Silva RS Martins H Carvalho JM Nobrega S Lanceros-Mendez |
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| Institution: | 1. Centro/Departamento de Física, Universidade do Minho, Campus de Gualtar, 4710-058 Braga, Portugal;2. CCTT – Centre for Textile Science and Technology, Dep. de Engenharia Têxtil, Universidade do Minho, Campus de Azurém, 4800-058 Guimarães, Portugal;3. I3N – Institute of Nanostructures, Nanomodelling and Nanofabrication, Dep. de Engenharia de Polímeros, Universidade do Minho, Campus de Azurém, 4800-058 Guimarães, Portugal |
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| Abstract: | This study analyses the possibility of reprocessing used poly(vinylidene fluoride), PVDF, maintaining the main properties critical for its use in piezoelectric sensor/actuator applications. The influence of multiple reprocessing cycles of PVDF on crystallinity and ß-phase content fundamental for its electroactive behaviour, was studied. Nine reprocessing cycles were completed and it was found that the material preserved the characteristics required for its use as piezoelectric polymer without significant degradation. |
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| Keywords: | Ferroelectrics PVDF Extrusion Phase transformation Recycling Reuse |
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