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dc.contributor.author
Merlini, Claudia
dc.contributor.author
Barra, Guilherme M. O.
dc.contributor.author
Popov Pereira Da Cunha, Matthäus Davi
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Ramôa, Sílvia D.A.S.
dc.contributor.author
Soares, Bluma G.
dc.contributor.author
Pegoretti, Alessandro
dc.date.available
2023-09-05T13:16:35Z
dc.date.issued
2017-10
dc.identifier.citation
Merlini, Claudia; Barra, Guilherme M. O.; Popov Pereira Da Cunha, Matthäus Davi; Ramôa, Sílvia D.A.S.; Soares, Bluma G.; et al.; Electrically conductive composites of polyurethane derived from castor oil with polypyrrole-coated peach palm fibers; John Wiley & Sons; Polymer Composites; 38; 10; 10-2017; 2146-2155
dc.identifier.issn
0272-8397
dc.identifier.uri
http://hdl.handle.net/11336/210510
dc.description.abstract
Electrically conducting fibers were prepared through in situ oxidative polymerization of pyrrole (Py) in the presence of peach palm fibers (PPF) using iron (III) chloride hexahydrate (FeCl3·6H2O) as oxidant. The polypyrrole (PPy) coated PPF displayed a PPy layer on the fibers surface, which was responsible for an electrical conductivity of (2.2 ± 0.3) × 10−1 S cm−1, similar to the neat PPy. Electrically conductive composites were prepared by dispersing various amounts of PPy-coated PPF in a polyurethane matrix derived from castor oil. The polyurethane/PPy-coated PPF composites (PU/PPF–PPy) exhibited an electrical conductivity higher than PU/PPy blends with similar filler content. This behavior is attributed to the higher aspect ratio of PPF–PPy when compared with PPy particles, inducing a denser conductive network formation in the PU matrix. Electromagnetic interference shielding effectiveness (EMI SE) value in the X-band (8.2–12.4 GHz) found for PU/PPF–PPy composites containing 25 wt% of PPF–PPy were in the range −12 dB, which corresponds to 93.2% of attenuation, indicating that these composites are promising candidates for EMI shielding applications.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
John Wiley & Sons
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Peach palm fiber
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Polypirrole
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Polyurethane
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Castor oil
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Composite
dc.subject.classification
Compuestos
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Ingeniería de los Materiales
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Electrically conductive composites of polyurethane derived from castor oil with polypyrrole-coated peach palm fibers
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-09-05T12:10:28Z
dc.journal.volume
38
dc.journal.number
10
dc.journal.pagination
2146-2155
dc.journal.pais
Estados Unidos
dc.journal.ciudad
New York
dc.description.fil
Fil: Merlini, Claudia. Universidade Federal de Santa Catarina; Brasil
dc.description.fil
Fil: Barra, Guilherme M. O.. Universidade Federal de Santa Catarina; Brasil
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Fil: Popov Pereira Da Cunha, Matthäus Davi. Universidade Federal de Santa Catarina; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
dc.description.fil
Fil: Ramôa, Sílvia D.A.S.. Universidade Federal de Santa Catarina; Brasil
dc.description.fil
Fil: Soares, Bluma G.. Universidade Federal do Rio de Janeiro; Brasil
dc.description.fil
Fil: Pegoretti, Alessandro. Universita degli Studi di Trento; Italia
dc.journal.title
Polymer Composites
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1002/pc.23790
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