Publicação
Nucleation of the electroactive γ phase and enhancement of the optical transparency in low filler content poly(vinylidene)/clay nanocomposites
| Resumo: | Poly(vinylidene fluoride), PVDF, based nanocomposites with different clays structures have been processed by solvent casting and melt crystallisation. Depending on the melting temperature of the polymer, the nanocomposite recrystalises in the electroactive or non electroactive β-phase of the polymer. This fact is related to the thermal behaviour of the clay. For montmorillonite clay, the full crystallisation of the electroactiveγ-phase occurs for clay contents lower than 0.5 wt%, allowing the nanocomposites to maintain the mechanical properties of the polymer matrix. The electroactivity of the material has been proven by measuring the piezoelectric d33 response of the material. The obtained value of d33 is -7 pC/N, lower than in β-PVDF obtained by mechanical stretching, but still among the largest coefficients obtained for polymers. Further, the optical transmittance in the visible range is strongly enhanced with respect to the transmittance of the pure polymer. Finally, it is demonstrated that the nucleation of the β-phase can be also obtained in other clays, such as in kaolinite and laponite. |
|---|---|
| Autores principais: | Lopes, A. C. |
| Outros Autores: | Costa, Carlos M.; Tavares, C. J.; Neves, I. C.; Lanceros-Méndez, S. |
| Assunto: | Electroactive polymers Sensor and actuators Piezoelectric Functional graded materials Iron oxide magnetic nanoparticles (IOMNP) PVDF Nanocomposites Electroactive properties Multiferroic materials Keywords |
| Ano: | 2011 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| _version_ | 1866875970241167360 |
|---|---|
| author | Lopes, A. C. |
| author2 | Costa, Carlos M. Tavares, C. J. Neves, I. C. Lanceros-Méndez, S. |
| author2_role | author author author author |
| author_facet | Lopes, A. C. Costa, Carlos M. Tavares, C. J. Neves, I. C. Lanceros-Méndez, S. |
| author_role | author |
| contributor_name_str_mv | Universidade do Minho |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Lopes, A. C.\"},{\"Person.name\":\"Costa, Carlos M.\"},{\"Person.name\":\"Tavares, C. J.\"},{\"Person.name\":\"Neves, I. C.\"},{\"Person.name\":\"Lanceros-Méndez, S.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Universidade do Minho |
| datacite.creators.creator.creatorName.fl_str_mv | Lopes, A. C. Costa, Carlos M. Tavares, C. J. Neves, I. C. Lanceros-Méndez, S. |
| datacite.date.Accepted.fl_str_mv | 2011-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2011-12-22T16:36:16Z |
| datacite.date.embargoed.fl_str_mv | 2011-12-22T16:36:16Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Electroactive polymers Sensor and actuators Piezoelectric Functional graded materials Iron oxide magnetic nanoparticles (IOMNP) PVDF Nanocomposites Electroactive properties Multiferroic materials Keywords |
| datacite.titles.title.fl_str_mv | Nucleation of the electroactive γ phase and enhancement of the optical transparency in low filler content poly(vinylidene)/clay nanocomposites |
| dc.contributor.none.fl_str_mv | Universidade do Minho |
| dc.creator.none.fl_str_mv | Lopes, A. C. Costa, Carlos M. Tavares, C. J. Neves, I. C. Lanceros-Méndez, S. |
| dc.date.Accepted.fl_str_mv | 2011-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2011-12-22T16:36:16Z |
| dc.date.embargoed.fl_str_mv | 2011-12-22T16:36:16Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/1822/15687 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | American Chemical Society (ACS) |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Electroactive polymers Sensor and actuators Piezoelectric Functional graded materials Iron oxide magnetic nanoparticles (IOMNP) PVDF Nanocomposites Electroactive properties Multiferroic materials Keywords |
| dc.title.fl_str_mv | Nucleation of the electroactive γ phase and enhancement of the optical transparency in low filler content poly(vinylidene)/clay nanocomposites |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Poly(vinylidene fluoride), PVDF, based nanocomposites with different clays structures have been processed by solvent casting and melt crystallisation. Depending on the melting temperature of the polymer, the nanocomposite recrystalises in the electroactive or non electroactive β-phase of the polymer. This fact is related to the thermal behaviour of the clay. For montmorillonite clay, the full crystallisation of the electroactiveγ-phase occurs for clay contents lower than 0.5 wt%, allowing the nanocomposites to maintain the mechanical properties of the polymer matrix. The electroactivity of the material has been proven by measuring the piezoelectric d33 response of the material. The obtained value of d33 is -7 pC/N, lower than in β-PVDF obtained by mechanical stretching, but still among the largest coefficients obtained for polymers. Further, the optical transmittance in the visible range is strongly enhanced with respect to the transmittance of the pure polymer. Finally, it is demonstrated that the nucleation of the β-phase can be also obtained in other clays, such as in kaolinite and laponite. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://prod-dspace.uminho.pt/bitstreams/89813722-0e1b-45a3-9ba2-327adf2869b0/download |
| id | rum_ddadd466ca18bf9576074ca7dbfdfaeb |
| identifier.url.fl_str_mv | https://hdl.handle.net/1822/15687 |
| instacron_str | repositorium |
| institution | Universidade do Minho |
| instname_str | Universidade do Minho |
| language | eng |
| network_acronym_str | rum |
| network_name_str | RepositóriUM - Universidade do Minho |
| oai_identifier_str | oai:repositorium.uminho.pt:1822/15687 |
| organization_str_mv | urn:organizationAcronym:repositorium |
| person_str_mv | Lopes, A. C. Costa, Carlos M. Tavares, C. J. Neves, I. C. Lanceros-Méndez, S. |
| publishDate | 2011 |
| publisher.none.fl_str_mv | American Chemical Society (ACS) |
| reponame_str | RepositóriUM - Universidade do Minho |
| repository_id_str | urn:repositoryAcronym:rum |
| service_str_mv | urn:repositoryAcronym:rum |
| spelling | engAmerican Chemical Society (ACS)porPoly(vinylidene fluoride), PVDF, based nanocomposites with different clays structures have been processed by solvent casting and melt crystallisation. Depending on the melting temperature of the polymer, the nanocomposite recrystalises in the electroactive or non electroactive β-phase of the polymer. This fact is related to the thermal behaviour of the clay. For montmorillonite clay, the full crystallisation of the electroactiveγ-phase occurs for clay contents lower than 0.5 wt%, allowing the nanocomposites to maintain the mechanical properties of the polymer matrix. The electroactivity of the material has been proven by measuring the piezoelectric d33 response of the material. The obtained value of d33 is -7 pC/N, lower than in β-PVDF obtained by mechanical stretching, but still among the largest coefficients obtained for polymers. Further, the optical transmittance in the visible range is strongly enhanced with respect to the transmittance of the pure polymer. Finally, it is demonstrated that the nucleation of the β-phase can be also obtained in other clays, such as in kaolinite and laponite.application/pdfporNucleation of the electroactive γ phase and enhancement of the optical transparency in low filler content poly(vinylidene)/clay nanocompositesLopes, A. C.Costa, Carlos M.Tavares, C. J.Neves, I. C.Lanceros-Méndez, S.HostingInstitutionOrganizationalUniversidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.ptISSNIsPartOf1932-7447ISSNIsPartOf1932-7455DOIIsPartOf10.1021/jp204513w2011-12-22T16:36:16Z20112011-01-01T00:00:00ZHandlehttps://hdl.handle.net/1822/15687http://purl.org/coar/access_right/c_abf2open accessElectroactive polymersSensor and actuatorsPiezoelectricFunctional graded materialsIron oxide magnetic nanoparticles (IOMNP)PVDFNanocompositesElectroactive propertiesMultiferroic materialsKeywords681121 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://prod-dspace.uminho.pt/bitstreams/89813722-0e1b-45a3-9ba2-327adf2869b0/download |
| spellingShingle | Nucleation of the electroactive γ phase and enhancement of the optical transparency in low filler content poly(vinylidene)/clay nanocomposites Lopes, A. C. Electroactive polymers Sensor and actuators Piezoelectric Functional graded materials Iron oxide magnetic nanoparticles (IOMNP) PVDF Nanocomposites Electroactive properties Multiferroic materials Keywords |
| status | SINGLETON |
| subject.fl_str_mv | Electroactive polymers Sensor and actuators Piezoelectric Functional graded materials Iron oxide magnetic nanoparticles (IOMNP) PVDF Nanocomposites Electroactive properties Multiferroic materials Keywords |
| title | Nucleation of the electroactive γ phase and enhancement of the optical transparency in low filler content poly(vinylidene)/clay nanocomposites |
| title_full | Nucleation of the electroactive γ phase and enhancement of the optical transparency in low filler content poly(vinylidene)/clay nanocomposites |
| title_fullStr | Nucleation of the electroactive γ phase and enhancement of the optical transparency in low filler content poly(vinylidene)/clay nanocomposites |
| title_full_unstemmed | Nucleation of the electroactive γ phase and enhancement of the optical transparency in low filler content poly(vinylidene)/clay nanocomposites |
| title_short | Nucleation of the electroactive γ phase and enhancement of the optical transparency in low filler content poly(vinylidene)/clay nanocomposites |
| title_sort | Nucleation of the electroactive γ phase and enhancement of the optical transparency in low filler content poly(vinylidene)/clay nanocomposites |
| topic | Electroactive polymers Sensor and actuators Piezoelectric Functional graded materials Iron oxide magnetic nanoparticles (IOMNP) PVDF Nanocomposites Electroactive properties Multiferroic materials Keywords |
| topic_facet | Electroactive polymers Sensor and actuators Piezoelectric Functional graded materials Iron oxide magnetic nanoparticles (IOMNP) PVDF Nanocomposites Electroactive properties Multiferroic materials Keywords |
| url | https://hdl.handle.net/1822/15687 |
| visible | 1 |