Thermo-gravimetric analysis (TGA) after different exposures of high density polyethylene (HDPE) and poly vinyl chloride (PVC) geomembranes

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorLodi, Paulo César
dc.creatorBueno, Benedito de Souza
dc.date2014-05-27T11:27:25Z
dc.date2016-10-25T18:40:36Z
dc.date2014-05-27T11:27:25Z
dc.date2016-10-25T18:40:36Z
dc.date2012-12-03
dc.date.accessioned2017-04-06T02:06:00Z
dc.date.available2017-04-06T02:06:00Z
dc.identifierElectronic Journal of Geotechnical Engineering, v. 17 W, p. 3339-3349.
dc.identifier1089-3032
dc.identifierhttp://hdl.handle.net/11449/74045
dc.identifierhttp://acervodigital.unesp.br/handle/11449/74045
dc.identifier2-s2.0-84870160192
dc.identifierhttp://www.ejge.com/2012/Abs12.308.htm
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/894820
dc.descriptionThis paper presents the results of thermogravimetric analysis (TGA) tests in PVC (1.0; 2.0 mm) and HDPE (0.8; 2.5 mm) geomembranes exposed to weathering and leachate after 30 months. The aim of this paper is the comparison of fresh and exposed samples to assess the degradation process concerning the total loss of mass of geomembranes. The exposure was conducted in accordance with the recommendations of ASTM standards. The TGA tests were carried out according to ASTM D6370 and E2105. Results show, for instance, that for PVC geomembrane the largest reductions of plasticizers occurred for samples exposed to weathering. The loss of plasticizers after the exposure contributed to the decrease of deformation and consequent increase in stiffness. TGA tests shows to be a valuable tool to control the quality of the materials. © 2012 ejge.
dc.languageeng
dc.relationElectronic Journal of Geotechnical Engineering
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectChemical degradation
dc.subjectPVC and HDPE geomembranes
dc.subjectTGA tests
dc.subjectWeathering
dc.subjectASTM Standards
dc.subjectDegradation process
dc.subjectLeachates
dc.subjectTotal loss
dc.subjectVinyl chlorides
dc.subjectChlorine compounds
dc.subjectGeomembranes
dc.subjectPlasticizers
dc.subjectPolyvinyl chlorides
dc.subjectReinforced plastics
dc.subjectSolvents
dc.subjectThermogravimetric analysis
dc.subjectdegradation
dc.subjectgeomembrane
dc.subjectleachate
dc.subjectthermogravimetry
dc.subjectweathering
dc.titleThermo-gravimetric analysis (TGA) after different exposures of high density polyethylene (HDPE) and poly vinyl chloride (PVC) geomembranes
dc.typeOtro


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