Thermoanalytical and dynamic mechanical analysis of commercial geomembranes used for fluid retention of leaching in sanitary landfills
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10973-018-7690-0 http://hdl.handle.net/11449/180144 |
Resumo: | Studying thermal behavior is very important for monitoring the quality of polymers on an industrial scale. Commercial geomembranes are materials with low permeability that can be used for multiple purposes, such as geotechnical engineering in liners for potable water. They can also be used as liners for waste liquid, e.g., sewage sludge and soil coverings for landfills. In this paper, the mechanical and thermal behavior of four geomembranes with thicknesses around 2.1, 1.9, 1.7 and 0.8 mm, sold in Brazil by different companies, was evaluated. Thickness, density, tension, puncture and tear resistance and carbon black content were used to characterize the properties of these materials. Thermogravimetry, differential thermal analysis, differential scanning calorimetry (DSC) and dynamical mechanical analysis (DMA) were used to examine the evolution of these geomembranes thermal behavior. Moreover, activation energy of the thermal decomposition was estimated from non-isothermal kinetics. The results obtained by thermogravimetry showed that the geomembranes have a different thermal behavior from each other. Data obtained by DSC showed a widening of the melting peak after the second heating. Activation energy values obtained by the Flynn–Wall–Ozawa and Capela–Ribeiro isoconversional methods for each sample showed variations between them. Based on the DMA experiment, the store modulus (E′), loss modulus (E″) and tan δ showed different behaviors for the 0.8-mm sample and no significant changes in the other samples. Concerning the mechanical properties, it can be observed that the density and black carbon data have compatible values between the samples. |
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Thermoanalytical and dynamic mechanical analysis of commercial geomembranes used for fluid retention of leaching in sanitary landfillsDMAGeomembranesMechanical textsTG/DTGStudying thermal behavior is very important for monitoring the quality of polymers on an industrial scale. Commercial geomembranes are materials with low permeability that can be used for multiple purposes, such as geotechnical engineering in liners for potable water. They can also be used as liners for waste liquid, e.g., sewage sludge and soil coverings for landfills. In this paper, the mechanical and thermal behavior of four geomembranes with thicknesses around 2.1, 1.9, 1.7 and 0.8 mm, sold in Brazil by different companies, was evaluated. Thickness, density, tension, puncture and tear resistance and carbon black content were used to characterize the properties of these materials. Thermogravimetry, differential thermal analysis, differential scanning calorimetry (DSC) and dynamical mechanical analysis (DMA) were used to examine the evolution of these geomembranes thermal behavior. Moreover, activation energy of the thermal decomposition was estimated from non-isothermal kinetics. The results obtained by thermogravimetry showed that the geomembranes have a different thermal behavior from each other. Data obtained by DSC showed a widening of the melting peak after the second heating. Activation energy values obtained by the Flynn–Wall–Ozawa and Capela–Ribeiro isoconversional methods for each sample showed variations between them. Based on the DMA experiment, the store modulus (E′), loss modulus (E″) and tan δ showed different behaviors for the 0.8-mm sample and no significant changes in the other samples. Concerning the mechanical properties, it can be observed that the density and black carbon data have compatible values between the samples.São Carlos School of Engineering - EESC University of São Paulo - USPCentro Universitário do Norte Paulista - UNORPDepartamento de Química Analítica Universidade Estadual Paulista - UNESPDepartamento de Química Analítica Universidade Estadual Paulista - UNESPUniversidade de São Paulo (USP)Centro Universitário do Norte Paulista - UNORPUniversidade Estadual Paulista (Unesp)Valentin, Clever Aparecidoda Silva, Jefferson LinsKobelnik, MarceloRibeiro, Clovis Augusto [UNESP]2018-12-11T17:38:20Z2018-12-11T17:38:20Z2018-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1007/s10973-018-7690-0Journal of Thermal Analysis and Calorimetry.1588-29261388-6150http://hdl.handle.net/11449/18014410.1007/s10973-018-7690-02-s2.0-850526419072-s2.0-85052641907.pdf84983108918100820000-0002-7984-5908Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Thermal Analysis and Calorimetry0,5870,587info:eu-repo/semantics/openAccess2023-12-19T06:23:45Zoai:repositorio.unesp.br:11449/180144Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:45:53.012465Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Thermoanalytical and dynamic mechanical analysis of commercial geomembranes used for fluid retention of leaching in sanitary landfills |
title |
Thermoanalytical and dynamic mechanical analysis of commercial geomembranes used for fluid retention of leaching in sanitary landfills |
spellingShingle |
Thermoanalytical and dynamic mechanical analysis of commercial geomembranes used for fluid retention of leaching in sanitary landfills Valentin, Clever Aparecido DMA Geomembranes Mechanical texts TG/DTG |
title_short |
Thermoanalytical and dynamic mechanical analysis of commercial geomembranes used for fluid retention of leaching in sanitary landfills |
title_full |
Thermoanalytical and dynamic mechanical analysis of commercial geomembranes used for fluid retention of leaching in sanitary landfills |
title_fullStr |
Thermoanalytical and dynamic mechanical analysis of commercial geomembranes used for fluid retention of leaching in sanitary landfills |
title_full_unstemmed |
Thermoanalytical and dynamic mechanical analysis of commercial geomembranes used for fluid retention of leaching in sanitary landfills |
title_sort |
Thermoanalytical and dynamic mechanical analysis of commercial geomembranes used for fluid retention of leaching in sanitary landfills |
author |
Valentin, Clever Aparecido |
author_facet |
Valentin, Clever Aparecido da Silva, Jefferson Lins Kobelnik, Marcelo Ribeiro, Clovis Augusto [UNESP] |
author_role |
author |
author2 |
da Silva, Jefferson Lins Kobelnik, Marcelo Ribeiro, Clovis Augusto [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Centro Universitário do Norte Paulista - UNORP Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Valentin, Clever Aparecido da Silva, Jefferson Lins Kobelnik, Marcelo Ribeiro, Clovis Augusto [UNESP] |
dc.subject.por.fl_str_mv |
DMA Geomembranes Mechanical texts TG/DTG |
topic |
DMA Geomembranes Mechanical texts TG/DTG |
description |
Studying thermal behavior is very important for monitoring the quality of polymers on an industrial scale. Commercial geomembranes are materials with low permeability that can be used for multiple purposes, such as geotechnical engineering in liners for potable water. They can also be used as liners for waste liquid, e.g., sewage sludge and soil coverings for landfills. In this paper, the mechanical and thermal behavior of four geomembranes with thicknesses around 2.1, 1.9, 1.7 and 0.8 mm, sold in Brazil by different companies, was evaluated. Thickness, density, tension, puncture and tear resistance and carbon black content were used to characterize the properties of these materials. Thermogravimetry, differential thermal analysis, differential scanning calorimetry (DSC) and dynamical mechanical analysis (DMA) were used to examine the evolution of these geomembranes thermal behavior. Moreover, activation energy of the thermal decomposition was estimated from non-isothermal kinetics. The results obtained by thermogravimetry showed that the geomembranes have a different thermal behavior from each other. Data obtained by DSC showed a widening of the melting peak after the second heating. Activation energy values obtained by the Flynn–Wall–Ozawa and Capela–Ribeiro isoconversional methods for each sample showed variations between them. Based on the DMA experiment, the store modulus (E′), loss modulus (E″) and tan δ showed different behaviors for the 0.8-mm sample and no significant changes in the other samples. Concerning the mechanical properties, it can be observed that the density and black carbon data have compatible values between the samples. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-11T17:38:20Z 2018-12-11T17:38:20Z 2018-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s10973-018-7690-0 Journal of Thermal Analysis and Calorimetry. 1588-2926 1388-6150 http://hdl.handle.net/11449/180144 10.1007/s10973-018-7690-0 2-s2.0-85052641907 2-s2.0-85052641907.pdf 8498310891810082 0000-0002-7984-5908 |
url |
http://dx.doi.org/10.1007/s10973-018-7690-0 http://hdl.handle.net/11449/180144 |
identifier_str_mv |
Journal of Thermal Analysis and Calorimetry. 1588-2926 1388-6150 10.1007/s10973-018-7690-0 2-s2.0-85052641907 2-s2.0-85052641907.pdf 8498310891810082 0000-0002-7984-5908 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Thermal Analysis and Calorimetry 0,587 0,587 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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 |
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1808129244382887936 |