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dc.contributor.authorLavoie, Fernando Luiz
dc.contributor.authorKobelnik, Marcelo
dc.contributor.authorValentin, Clever Aparecido
dc.contributor.authorTirelli, Erica Fernanda da Silva
dc.contributor.authorLopes, Maria de Lurdes
dc.contributor.authorda Silva, Jefferson Lins
dc.date.accessioned2024-10-21T18:47:13Z
dc.date.available2024-10-21T18:47:13Z
dc.date.issued2025
dc.identifier.citationQuim. Nova
dc.identifier.issn1678-7064
dc.identifier.urihttp://dx.doi.org/10.21577/0100-4042.20250019
dc.identifier.urihttps://repositorio.maua.br/handle/MAUA/1546
dc.description.abstractHigh-density polyethylene (HDPE) geomembranes are commonly used as an environmental protection liner due to their good chemical and mechanical resistances and low cost. Ultraviolet (UV) radiation is an essential issue in durability studies for pond applications. This study evaluated a 1.5-mm thick HDPE geomembrane exposed to ultraviolet fluorescent radiation for 8760 h in a laboratory and thermoanalytical and physical analyses were conducted towards the understanding of its performance after exposure. According to the results, although the geomembrane maintained the ductile behavior, it showed a 52.48% final decrease in stress crack resistance (SCR) compared to virgin SCR. Moreover, a considerable antioxidant depletion occurred after 8760 h exposure shown by the Std. OIT (standard oxidative-induction time) results, demonstrating a Std. OIT value decrease of 89.19% compared to the virgin Std. OIT. Such a behavior contributed to the susceptibility of thermal effects in the DSC (differential scanning calorimetry) curves and the losses observed in the SCR values, attesting the geomembrane's oxidative degradation mechanism occurred and changed the polymer's structure.en
dc.format.extent6.0
dc.languageInglêspt_BR
dc.publisherSOC BRASILEIRA QUIMICAen
dc.relation.ispartofQUIMICA NOVA
dc.rightsAcesso Restrito
dc.sourceWeb of Scienceen
dc.subjectgeomembraneen
dc.subjecthigh-density polyethyleneen
dc.subjectultraviolet radiationen
dc.subjectdurabilityen
dc.subjectphysical and thermal analysisen
dc.subjectANTIOXIDANT DEPLETIONen
dc.subjectHDPEen
dc.subjectGEOMEMBRANESen
dc.subjectChemistry, Multidisciplinaryen
dc.subject.othergeomembraneen
dc.subject.otherhigh-density polyethyleneen
dc.subject.otherultraviolet radiationen
dc.subject.otherdurabilityen
dc.subject.otherphysical and thermal analysisen
dc.subject.otherANTIOXIDANT DEPLETIONen
dc.subject.otherHDPEen
dc.subject.otherGEOMEMBRANESen
dc.subject.otherChemistry, Multidisciplinaryen
dc.titlePerformance Of An Environmental Protection Liner After Laboratory Uv Exposureen
dc.typeArtigo de Periódicopt_BR
dc.identifier.doi10.21577/0100-4042.20250019
dc.description.affiliationUniversidade de Sao Paulo
dc.description.affiliationInstituto Maua de Tecnologia
dc.description.affiliationUniversidade do Porto
dc.identifier.wosWOS:001267700300002
dc.contributor.orcidLavoie, Fernando Luiz/0000-0003-1242-3708
dc.citation.issue2
dc.citation.volume48


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