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dc.contributor.authorLodi, Paulo Cesar [UNESP]
dc.contributor.authorBueno, Benedito de Souza
dc.contributor.authorVilar, Orencio Monje
dc.date.accessioned2014-12-03T13:11:46Z
dc.date.available2014-12-03T13:11:46Z
dc.date.issued2013-11-01
dc.identifierhttp://dx.doi.org/10.1590/S1516-14392013005000137
dc.identifier.citationMaterials Research-ibero-american Journal Of Materials. Sao Carlos: Univ Fed Sao Carlos, Dept Engenharia Materials, v. 16, n. 6, p. 1331-1335, 2013.
dc.identifier.issn1516-1439
dc.identifier.urihttp://hdl.handle.net/11449/113539
dc.description.abstractThis paper presents results describing the physical, mechanical, and thermal properties (melt flow index - MFI and oxidative induction time - OIT) of high density polyethylene and poly (vinyl chloride) after weathering exposure (6, 12, 18, and 30 months). The materials exposed were geomembranes of two thicknesses: 1.0 and 2.0 mm (PVC) and 0.8 and 2.5 mm (HDPE). The climate parameters (average) obtained were 25 degrees C (temperature), 93 mm (precipitation), 66% (relative humidity), and 19 MJ/m(2). day (intensity of global radiation). Some results showed, for instance, that the behavior of the geomembranes changed after the exposures. A few minor variations in physical properties occurred. The density and thickness, for instance, varied 0.5-1.0% (average) for both the PVC and HDPE geomembranes. The mechanical properties changed as a function of the period of exposure. In general, some decreases were verified by the deformation of PVC. The samples became more rigid. In contrast, HDPE geomembranes became more ductile. Despite the variations in elasticity, some increases in deformability were verified. An MFI test showed some degradation in HDPE geomembranes. OIT tests revealed small values for both intact and exposed samples.en
dc.format.extent1331-1335
dc.language.isoeng
dc.publisherUniv Fed Sao Carlos, Dept Engenharia Materials
dc.relation.ispartofMaterials Research-ibero-american Journal of Materials
dc.sourceWeb of Science
dc.subjectHDPE and PVC geomembranesen
dc.subjectweathering exposureen
dc.subjectphysical and mechanical propertiesen
dc.subjectoxidative degradationen
dc.titleThe Effects of Weathering Exposure on the Physical, Mechanical, and Thermal Properties of High-density Polyethylene and Poly (Vinyl Chloride)en
dc.typeArtigo
dcterms.rightsHolderUniv Fed Sao Carlos, Dept Engenharia Materials
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.description.affiliationSao Paulo State Univ UNESP, Dept Civil Engn, BR-17033360 Bauru, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Sao Carlos Sch Engn EESC, Dept Geotech Engn, BR-13566970 Sao Carlos, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ UNESP, Dept Civil Engn, BR-17033360 Bauru, SP, Brazil
dc.identifier.doi10.1590/S1516-14392013005000137
dc.identifier.scieloS1516-14392013005000137
dc.identifier.wosWOS:000328910600016
dc.rights.accessRightsAcesso aberto
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Engenharia, Baurupt
dc.identifier.fileS1516-14392013000600016.pdf
dc.identifier.lattes1120844604445962
dc.identifier.orcid0000-0001-8857-1710
unesp.author.lattes1120844604445962[1]
unesp.author.orcid0000-0001-8857-1710[1]
dc.relation.ispartofjcr1.103
dc.relation.ispartofsjr0,398
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