Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/69490
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Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Rincón-Iglesias, M. | por |
dc.contributor.author | Lizundia, E. | por |
dc.contributor.author | Correia, Daniela M. | por |
dc.contributor.author | Costa, Carlos M. | por |
dc.contributor.author | Lanceros-Méndez, S. | por |
dc.date.accessioned | 2021-01-20T15:10:55Z | - |
dc.date.available | 2023-01-01T07:00:42Z | - |
dc.date.issued | 2020 | - |
dc.identifier.issn | 0969-0239 | - |
dc.identifier.uri | https://hdl.handle.net/1822/69490 | - |
dc.description.abstract | This work shows the effect of cellulose nanocrystal surface charge on the morphology, structure, thermal and dielectric properties of poly(vinylidene fluoride) nanocomposites. CNCs extracted through sulfuric acid hydrolysis were modified using sodium hydroxide and cationization treatments to yield CNCs with zeta-potential values of − 26.1 ± 3.7 and − 4.4 ± 0.3 mV in comparison with the original highly-negative − 45.2 ± 1.1 mV. Nanocomposites where then obtained through doctor-blade casting followed by room temperature drying. CNC incorporation allows obtaining PVDF with 100% of γ-phase. An increase of the real dielectric constant ε′, dielectric loss tan δ and AC conductivity was observed by increasing CNC content. More importantly, these values are further boosted upon CNC surface-modification, suggesting the pivotal role of the CNC–PVDF interface. We conclude that the sulfate half-ester removal increase the amount of exposed –OH groups with increase the amount of accumulated charges at the PVDF–CNC interfaces. | por |
dc.description.sponsorship | The authors thank the FCT (Fundação para a Ciência e Tecnologia) for financial support under the framework of Strategic Funding Grants UID/FIS/04650/2019, UID/EEA/04436/2013 and UID/QUI/0686/ 2016; and Projects Nos. PTDC/BTM-MAT/28237/2017; PTDC/EMD-EMD/28159/2017 and PTDC/FIS-MAC/28157/2017. The authors also thank the FCT for financial Support under grants SFRH/BPD/121526/2016 (D.M.C.) and SFRH/BPD/112547/2015 (C.M.C.) as well POCH and European Union. Financial support from the Spanish Ministry of Economy and Competitiveness (MINECO) through Project MAT2016- 76039-C4-3-R (AEI/FEDER, UE) (including FEDER financial support) and from the Basque Government Industry and Education Departments under the ELKARTEK, HAZITEK and PIBA (PIBA-2018-06) programs, respectively, is also acknowledged | por |
dc.language.iso | eng | por |
dc.publisher | Springer | por |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FFIS%2F04650%2F2019/PT | - |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147325/PT | - |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FQUI%2F0686%2F2016/PT | - |
dc.relation | info:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FBTM-MAT%2F28237%2F2017/PT | - |
dc.relation | info:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FEMD-EMD%2F28159%2F2017/PT | - |
dc.relation | info:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FFIS-MAC%2F28157%2F2017/PT | - |
dc.relation | info:eu-repo/grantAgreement/FCT/POR_NORTE/SFRH%2FBPD%2F121526%2F2016/PT | - |
dc.relation | info:eu-repo/grantAgreement/FCT/POR_NORTE/SFRH%2FBPD%2F112547%2F2015/PT | - |
dc.rights | openAccess | por |
dc.subject | Polymer-matrix composites (PMCs) | por |
dc.subject | Electrical properties | por |
dc.subject | Infrared (IR) spectroscopy | por |
dc.subject | X-ray diffraction (XRD) | por |
dc.subject | Cellulose nanocrystals | por |
dc.subject | Surface modification | por |
dc.subject | Cationization | por |
dc.subject | Nanocomposite | por |
dc.subject | Thermal properties | por |
dc.subject | Dielectric properties | por |
dc.title | The role of CNC surface modification on the structural, thermal and electrical properties of poly(vinylidene fluoride) nanocomposites | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://link.springer.com/article/10.1007/s10570-020-03067-z | por |
oaire.citationStartPage | 3821 | por |
oaire.citationEndPage | 3834 | por |
oaire.citationIssue | 7 | por |
oaire.citationVolume | 27 | por |
dc.identifier.eissn | 1572-882X | - |
dc.identifier.doi | 10.1007/s10570-020-03067-z | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Cellulose | por |
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