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https://hdl.handle.net/1822/65587
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Campo DC | Valor | Idioma |
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dc.contributor.author | Ribeiro, Sylvie | por |
dc.contributor.author | Meira, Rafaela | por |
dc.contributor.author | Correia, Daniela M. | por |
dc.contributor.author | Tubio, Carmen R. | por |
dc.contributor.author | Ribeiro, Clarisse | por |
dc.contributor.author | Baleizão, Carlos | por |
dc.contributor.author | Lanceros-Méndez, S. | por |
dc.date.accessioned | 2020-06-08T15:29:36Z | - |
dc.date.issued | 2020-03-15 | - |
dc.identifier.citation | Ribeiro, Sylvie; Meira, Rafaela; Correia, Daniela M.; Tubio, Carmen R.; Ribeiro, Clarisse; Baleizão, Carlos; Lanceros-Méndez, Senentxu, Silica nanoparticles surface charge modulation of the electroactive phase content and physical-chemical properties of poly(vinylidene fluoride) nanocomposites. Composites Part B-Engineering, 185(107786), 2020 | por |
dc.identifier.issn | 1359-8368 | por |
dc.identifier.uri | https://hdl.handle.net/1822/65587 | - |
dc.description.abstract | Composites based on a piezoelectric polymer (PVDF) doped with different silica nanoparticles (SiNPs) content (8, 16 and 32wt%) and functionalization (WF-without, NF-negative and PF-positive) have been investigated. Composite films were prepared by solvent casting and melt crystallization to investigate the effect of the presence of the SiNPs on the physico-chemical characteristics and, in particular, in the nucleation of the electroactive -phase of the polymer. It is shown that the introduction of the SiNPs allows to increase water surface angle up to 34% with respect to -PVDF, as well to increase the elastic modulus. Filler content and type have an important effect on the nucleation of the electroactive beta phase content and the dielectric properties of the composites, the larger values of both being obtained for positively surface charged nanoparticles. It is concluded that, taken into consideration the overall properties of the composites, the SiNPs-PF/PVDF nanocomposites with 8wt% filler content offer a promising approach for applications due to the improvement of the electroactive phase of PVDF. | por |
dc.description.sponsorship | We thank Dr. Tania Ribeiro and Dr. Ana Sofia Rodrigues for technical assistance in the nanoparticle synthesis. This work was supported by the Portuguese Foundation for Science and Technology (FCT) in the framework of projects PTDC/CTM-CTM/32444/2017 and UID/NAN/50024/2019. The authors thank the FCT also for funding in the framework of the Strategic Programs UID/FIS/04650/2019 and projects LungChek ENMed/0049/2016, PTDC/EMD-EMD/28159/2017 and PTDC/BTM-MAT/28237/2017. SR and DC thank FCT for the grants SFRH/BD/111478/2015 and SFRH/BPD/121526/2016, respectively. Finally, the authors acknowledge funding by the Spanish Ministry of Economy and Competitiveness (MINECO) through the project MAT2016-76039-C4-3-R (AEI/FEDER, UE) and from the Basque Government Industry and Education Departments under the ELKARTEK and PIBA (PIBA-2018-06) programs, respectively. | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier 1 | por |
dc.rights | restrictedAccess | por |
dc.subject | A-smart materials | por |
dc.subject | A-polymer-matrix composites (PMCs) | por |
dc.subject | B-Electrical properties | por |
dc.subject | B-Chemical properties | por |
dc.subject | smart materials | por |
dc.subject | polymer-matrix composites (PMCs) | por |
dc.subject | Electrical properties | por |
dc.subject | Chemical properties | por |
dc.title | Silica nanoparticles surface charge modulation of the electroactive phase content and physical-chemical properties of poly(vinylidene fluoride) nanocomposites | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://www.journals.elsevier.com/composites-part-b-engineering | por |
dc.comments | CEB53428 | por |
oaire.citationVolume | 185 | por |
dc.date.updated | 2020-02-02T11:04:28Z | - |
dc.identifier.eissn | 1879-1069 | por |
dc.identifier.doi | 10.1016/j.compositesb.2020.107786 | por |
dc.date.embargo | 10000-01-01 | - |
dc.description.publicationversion | info:eu-repo/semantics/publishedVersion | - |
dc.subject.wos | Science & Technology | por |
sdum.journal | Composites Part B: Engineering | por |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
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document_53428_1.pdf Acesso restrito! | 3,52 MB | Adobe PDF | Ver/Abrir |