Evaluation of geomembrane UV degradation using melt flow index and oxidative induction time tests

Detalhes bibliográficos
Autor(a) principal: Lodi, P. C. [UNESP]
Data de Publicação: 2008
Outros Autores: Bueno, B. S., Vilar, O. M.
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1007/978-3-540-69313-0_9
http://hdl.handle.net/11449/220322
Resumo: Many factors such as the sunlight, intensity of radiation, temperature, and moisture may influence the degradation process of geosynthetics. UV stabilizers are used especially in polyolefin geomembrane to prevent the degradation process. In these geomembranes the service lifetime is initially governed by the consumption of antioxidants. Tests like MFI and OIT are a alternative to detect the oxidative degradation in polyolefins. This article evaluates HDPE geomembrane degradation after UV exposure through the results of MFI and OIT tests. Two kinds of geomembranes were evaluated: a black and smooth (0.8, 1.0, 1.5, 2.5 mm) and a white and textured (1.0 mm). MFI test showed some levels of superficial degradation (crosslink) in HDPE geomembrane.
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spelling Evaluation of geomembrane UV degradation using melt flow index and oxidative induction time testsGeomembranesMFI and OIT testsUV exposureMany factors such as the sunlight, intensity of radiation, temperature, and moisture may influence the degradation process of geosynthetics. UV stabilizers are used especially in polyolefin geomembrane to prevent the degradation process. In these geomembranes the service lifetime is initially governed by the consumption of antioxidants. Tests like MFI and OIT are a alternative to detect the oxidative degradation in polyolefins. This article evaluates HDPE geomembrane degradation after UV exposure through the results of MFI and OIT tests. Two kinds of geomembranes were evaluated: a black and smooth (0.8, 1.0, 1.5, 2.5 mm) and a white and textured (1.0 mm). MFI test showed some levels of superficial degradation (crosslink) in HDPE geomembrane.Department of Civil Engineering São Paulo State University (UNESP)Department of Geotechnical Engineering University of State of São Paulo (USP) at São CarlosDepartment of Civil Engineering São Paulo State University (UNESP)Universidade Estadual Paulista (UNESP)Universidade de São Paulo (USP)Lodi, P. C. [UNESP]Bueno, B. S.Vilar, O. M.2022-04-28T19:00:55Z2022-04-28T19:00:55Z2008-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject40-43http://dx.doi.org/10.1007/978-3-540-69313-0_9Geosynthetics in Civil and Environmental Engineering - Geosynthetics Asia 2008: Proceedings of the 4th Asian Regional Conference on Geosynthetics, p. 40-43.http://hdl.handle.net/11449/22032210.1007/978-3-540-69313-0_92-s2.0-84924326005Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGeosynthetics in Civil and Environmental Engineering - Geosynthetics Asia 2008: Proceedings of the 4th Asian Regional Conference on Geosyntheticsinfo:eu-repo/semantics/openAccess2022-04-28T19:00:55Zoai:repositorio.unesp.br:11449/220322Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T13:58:01.875065Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Evaluation of geomembrane UV degradation using melt flow index and oxidative induction time tests
title Evaluation of geomembrane UV degradation using melt flow index and oxidative induction time tests
spellingShingle Evaluation of geomembrane UV degradation using melt flow index and oxidative induction time tests
Lodi, P. C. [UNESP]
Geomembranes
MFI and OIT tests
UV exposure
title_short Evaluation of geomembrane UV degradation using melt flow index and oxidative induction time tests
title_full Evaluation of geomembrane UV degradation using melt flow index and oxidative induction time tests
title_fullStr Evaluation of geomembrane UV degradation using melt flow index and oxidative induction time tests
title_full_unstemmed Evaluation of geomembrane UV degradation using melt flow index and oxidative induction time tests
title_sort Evaluation of geomembrane UV degradation using melt flow index and oxidative induction time tests
author Lodi, P. C. [UNESP]
author_facet Lodi, P. C. [UNESP]
Bueno, B. S.
Vilar, O. M.
author_role author
author2 Bueno, B. S.
Vilar, O. M.
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv Lodi, P. C. [UNESP]
Bueno, B. S.
Vilar, O. M.
dc.subject.por.fl_str_mv Geomembranes
MFI and OIT tests
UV exposure
topic Geomembranes
MFI and OIT tests
UV exposure
description Many factors such as the sunlight, intensity of radiation, temperature, and moisture may influence the degradation process of geosynthetics. UV stabilizers are used especially in polyolefin geomembrane to prevent the degradation process. In these geomembranes the service lifetime is initially governed by the consumption of antioxidants. Tests like MFI and OIT are a alternative to detect the oxidative degradation in polyolefins. This article evaluates HDPE geomembrane degradation after UV exposure through the results of MFI and OIT tests. Two kinds of geomembranes were evaluated: a black and smooth (0.8, 1.0, 1.5, 2.5 mm) and a white and textured (1.0 mm). MFI test showed some levels of superficial degradation (crosslink) in HDPE geomembrane.
publishDate 2008
dc.date.none.fl_str_mv 2008-01-01
2022-04-28T19:00:55Z
2022-04-28T19:00:55Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1007/978-3-540-69313-0_9
Geosynthetics in Civil and Environmental Engineering - Geosynthetics Asia 2008: Proceedings of the 4th Asian Regional Conference on Geosynthetics, p. 40-43.
http://hdl.handle.net/11449/220322
10.1007/978-3-540-69313-0_9
2-s2.0-84924326005
url http://dx.doi.org/10.1007/978-3-540-69313-0_9
http://hdl.handle.net/11449/220322
identifier_str_mv Geosynthetics in Civil and Environmental Engineering - Geosynthetics Asia 2008: Proceedings of the 4th Asian Regional Conference on Geosynthetics, p. 40-43.
10.1007/978-3-540-69313-0_9
2-s2.0-84924326005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Geosynthetics in Civil and Environmental Engineering - Geosynthetics Asia 2008: Proceedings of the 4th Asian Regional Conference on Geosynthetics
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 40-43
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128296600207360

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