Natural rubber/wood composite foam: Thermal insulation and acoustic isolation materials for construction

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dc.contributor.authorNeves de Alencar, Laura [UNESP]
dc.contributor.authorGuedes Paiva, Fábio Friol
dc.contributor.authorOkimoto, Fernando Sérgio [UNESP]
dc.contributor.authorBacarin, Giovani Boaventura [UNESP]
dc.contributor.authorDognani, Guilherme [UNESP]
dc.contributor.authorSalmazo, Leandra Oliveira
dc.contributor.authordos Santos, Renivaldo José [UNESP]
dc.contributor.authorCabrera, Flávio Camargo [UNESP]
dc.contributor.authorJob, Aldo Eloizo [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversity of Western São Paulo (UNOESTE)
dc.contributor.institutionUniversity of Valladolid (UVa)
dc.date.accessioned2023-07-29T13:36:27Z
dc.date.available2023-07-29T13:36:27Z
dc.date.issued2023-03-01
dc.description.abstractWith the advances in the field of civil construction and the world population growth, the development of policies is necessary for the management and reuse of generated residue. Thus, the present work proposes the use of expanded natural rubber as a polymeric matrix incorporated with eucalyptus filler as a reinforcing filler for the production of composites. Thermal insulation capacity was determined by the transient plane source and acoustic method by impedance tube. NR/W40 foam showed enhanced the acoustic insulation capacity. The maximum absorption of NR/W40 was 0.83, at 3257 Hz, which is three times higher than natural rubber foam. Highly inhomogeneous cell structures were observed with large, interconnected pores, improving the acoustic performance. Sound absorption coefficient for natural rubber foam with 40% wood (0.83 ± 0.046) was similar to PU foam (0.97 ± 0.009) with 20 mm in thickness, a density of 47 kg/m3 and 98% open cell content it is a well-known acoustic absorbent in the building sector. The NR/W40 sample recorded the best acoustic performance among the NR foams analyzed in this work, maintaining good sound absorption above 1500 Hz, demonstrating a possibility of wood reuse as a filler in based-rubber foam for acustic insulation.en
dc.description.affiliationSchool of Technology and Sciences São Paulo State University (FCT-UNESP)
dc.description.affiliationUniversity of Western São Paulo (UNOESTE)
dc.description.affiliationDepartment of Condensed Matter Physics University of Valladolid (UVa)
dc.description.affiliationSchool of Engineering and Sciences São Paulo State University (UNESP)
dc.description.affiliationUnespSchool of Technology and Sciences São Paulo State University (FCT-UNESP)
dc.description.affiliationUnespSchool of Engineering and Sciences São Paulo State University (UNESP)
dc.format.extent55-72
dc.identifierhttp://dx.doi.org/10.1177/02624893231151364
dc.identifier.citationCellular Polymers, v. 42, n. 2, p. 55-72, 2023.
dc.identifier.doi10.1177/02624893231151364
dc.identifier.issn1478-2421
dc.identifier.issn0262-4893
dc.identifier.scopus2-s2.0-85146063508
dc.identifier.urihttp://hdl.handle.net/11449/248171
dc.language.isoeng
dc.relation.ispartofCellular Polymers
dc.sourceScopus
dc.subjectComposites
dc.subjectcompression
dc.subjectelastomers
dc.subjectfoams
dc.titleNatural rubber/wood composite foam: Thermal insulation and acoustic isolation materials for constructionen
dc.typeArtigo
unesp.author.orcid0000-0002-1979-8257[9]

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