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https://hdl.handle.net/1822/69473
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Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Lizundia, E. | por |
dc.contributor.author | Reizabal, A. | por |
dc.contributor.author | Costa, Carlos Miguel Silva | por |
dc.contributor.author | Maceiras, A. | por |
dc.contributor.author | Lanceros-Méndez, S. | por |
dc.date.accessioned | 2021-01-19T17:32:13Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Lizundia, E.; Reizabal, A.; Costa, C.M.; Maceiras, A.; Lanceros-Méndez, S. Electroactive γ-Phase, Enhanced Thermal and Mechanical Properties and High Ionic Conductivity Response of Poly (Vinylidene Fluoride)/Cellulose Nanocrystal Hybrid Nanocomposites. Materials 2020, 13, 743. https://doi.org/10.3390/ma13030743 | por |
dc.identifier.issn | 1996-1944 | - |
dc.identifier.uri | https://hdl.handle.net/1822/69473 | - |
dc.description.abstract | Cellulose nanocrystals (CNCs) were incorporated into poly (vinylidene fluoride) (PVDF) to tailor the mechanical and dielectric properties of this electroactive polymer. PVDF/CNC nanocomposites with concentrations up to 15 wt.% were prepared by solvent-casting followed by quick vacuum drying in order to ensure the formation of the electroactive γ-phase. The changes induced by the presence of CNCs on the morphology of PVDF and its crystalline structure, thermal properties, mechanical performance and dielectric behavior are explored. The results suggest a relevant role of the CNC surface −OH groups, which interact with PVDF fluorine atoms. The real dielectric constant ε’ of nanocomposites at 200 Hz was found to increase by 3.6 times up to 47 for the 15 wt.% CNC nanocomposite due to an enhanced ionic conductivity provided by CNCs. The approach reported here in order to boost the formation of the γ-phase of PVDF upon the incorporation of CNCs serves to further develop cellulose-based multifunctional materials | por |
dc.description.sponsorship | This work was supported by the FCT (Fundação para a Ciência e Tecnologia) under the framework of Strategic Funding grants UID/FIS/04650/2019, UID/EEA/04436/2013 and UID/QUI/0686/2016; and project no. POCI-01-0145-FEDER-028157. This work was also supported by the Basque Government under the ELKARTEK, HAZITEK and PIBA (PIBA-2018-06) programs. | por |
dc.language.iso | eng | por |
dc.publisher | MDPI | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FFIS%2F04650%2F2019/PT | - |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FEEA%2F04436%2F2013/PT | - |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FQUI%2F0686%2F2016/PT | - |
dc.rights | openAccess | por |
dc.subject | Cellulose nanocrystals | por |
dc.subject | Nanocomposites | por |
dc.subject | PVDF | por |
dc.subject | Electrical properties | por |
dc.subject | Mechanical properties | por |
dc.title | Electroactive γ-phase, enhanced thermal and mechanical behaviour and high ionic conductivity response of poly (vinylidene fluoride)/cellulose nanocrystals hybrid nanocomposites | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.mdpi.com/1996-1944/13/3/743 | por |
oaire.citationIssue | 3 | por |
oaire.citationVolume | 13 | por |
dc.identifier.doi | 10.3390/ma13030743 | por |
dc.subject.fos | Ciências Naturais::Ciências Físicas | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Materials | por |
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