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

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorLodi, P. C.
dc.creatorBueno, B. S.
dc.creatorVilar, O. M.
dc.date2014-05-20T13:28:52Z
dc.date2016-10-25T16:48:23Z
dc.date2014-05-20T13:28:52Z
dc.date2016-10-25T16:48:23Z
dc.date2008-01-01
dc.date.accessioned2017-04-05T20:12:16Z
dc.date.available2017-04-05T20:12:16Z
dc.identifierGeosynthetics In Civil and Environmental Engineering. Hangzhou: Zhejiang Univ Press, p. 40-43, 2008.
dc.identifierhttp://hdl.handle.net/11449/9635
dc.identifierhttp://acervodigital.unesp.br/handle/11449/9635
dc.identifierWOS:000259486300009
dc.identifierhttp://dx.doi.org/10.1007/978-3-540-69313-0_9
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/857735
dc.descriptionMany 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.
dc.languageeng
dc.publisherZhejiang Univ Press
dc.relationGeosynthetics In Civil and Environmental Engineering
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectgeomembranes
dc.subjectUV exposure
dc.subjectMFI and OIT tests
dc.titleEvaluation of geomembrane UV degradation using melt flow index and oxidative induction time tests
dc.typeOtro


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