Study of an exhumed HDPE geomembrane used in an industrial water pond: physical and thermoanalytical characterisations
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/10216/129034 |
Resumo: | This paper analyzed the behavior of an HDPE geomembrane exhumed sample used for 2.25 years as a liner in an industrial water pond from a Brazilian company, as well as another similar sample as a reference. The thermogravimetry (TG) using different heating rates under synthetic air purge gas evaluation showed that the exhumed sample presented a different behavior in the TG curve for a heating rate of 5 C min-1 attributed to the reaction time. The thermomechanical analysis (TMA) curves without purge gas showed the range of thermal stability between 30 and 65 C for the reference sample, which is attributed to a molecular relaxation. The exhumed sample does not have the same relaxation, probably because this sample was submitted to severe environmental conditions in the field. Finally, the physical property values for the exhumed sample showed mechanical brittle behavior, which can indicate that changes probably occurred in the polymer structure. |
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Study of an exhumed HDPE geomembrane used in an industrial water pond: physical and thermoanalytical characterisationsCiências Tecnológicas, Ciências da engenharia e tecnologiasTechnological sciences, Engineering and technologyThis paper analyzed the behavior of an HDPE geomembrane exhumed sample used for 2.25 years as a liner in an industrial water pond from a Brazilian company, as well as another similar sample as a reference. The thermogravimetry (TG) using different heating rates under synthetic air purge gas evaluation showed that the exhumed sample presented a different behavior in the TG curve for a heating rate of 5 C min-1 attributed to the reaction time. The thermomechanical analysis (TMA) curves without purge gas showed the range of thermal stability between 30 and 65 C for the reference sample, which is attributed to a molecular relaxation. The exhumed sample does not have the same relaxation, probably because this sample was submitted to severe environmental conditions in the field. Finally, the physical property values for the exhumed sample showed mechanical brittle behavior, which can indicate that changes probably occurred in the polymer structure.20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10216/129034eng2590-048X10.1016/j.rinma.2020.100131Maria de Lurdes LopesFernando Luiz LavoieMarcelo KobelnikClever Aparecido ValentinJefferson Lins da Silvainfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-29T14:47:59Zoai:repositorio-aberto.up.pt:10216/129034Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:08:44.919366Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Study of an exhumed HDPE geomembrane used in an industrial water pond: physical and thermoanalytical characterisations |
title |
Study of an exhumed HDPE geomembrane used in an industrial water pond: physical and thermoanalytical characterisations |
spellingShingle |
Study of an exhumed HDPE geomembrane used in an industrial water pond: physical and thermoanalytical characterisations Maria de Lurdes Lopes Ciências Tecnológicas, Ciências da engenharia e tecnologias Technological sciences, Engineering and technology |
title_short |
Study of an exhumed HDPE geomembrane used in an industrial water pond: physical and thermoanalytical characterisations |
title_full |
Study of an exhumed HDPE geomembrane used in an industrial water pond: physical and thermoanalytical characterisations |
title_fullStr |
Study of an exhumed HDPE geomembrane used in an industrial water pond: physical and thermoanalytical characterisations |
title_full_unstemmed |
Study of an exhumed HDPE geomembrane used in an industrial water pond: physical and thermoanalytical characterisations |
title_sort |
Study of an exhumed HDPE geomembrane used in an industrial water pond: physical and thermoanalytical characterisations |
author |
Maria de Lurdes Lopes |
author_facet |
Maria de Lurdes Lopes Fernando Luiz Lavoie Marcelo Kobelnik Clever Aparecido Valentin Jefferson Lins da Silva |
author_role |
author |
author2 |
Fernando Luiz Lavoie Marcelo Kobelnik Clever Aparecido Valentin Jefferson Lins da Silva |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Maria de Lurdes Lopes Fernando Luiz Lavoie Marcelo Kobelnik Clever Aparecido Valentin Jefferson Lins da Silva |
dc.subject.por.fl_str_mv |
Ciências Tecnológicas, Ciências da engenharia e tecnologias Technological sciences, Engineering and technology |
topic |
Ciências Tecnológicas, Ciências da engenharia e tecnologias Technological sciences, Engineering and technology |
description |
This paper analyzed the behavior of an HDPE geomembrane exhumed sample used for 2.25 years as a liner in an industrial water pond from a Brazilian company, as well as another similar sample as a reference. The thermogravimetry (TG) using different heating rates under synthetic air purge gas evaluation showed that the exhumed sample presented a different behavior in the TG curve for a heating rate of 5 C min-1 attributed to the reaction time. The thermomechanical analysis (TMA) curves without purge gas showed the range of thermal stability between 30 and 65 C for the reference sample, which is attributed to a molecular relaxation. The exhumed sample does not have the same relaxation, probably because this sample was submitted to severe environmental conditions in the field. Finally, the physical property values for the exhumed sample showed mechanical brittle behavior, which can indicate that changes probably occurred in the polymer structure. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020 2020-01-01T00:00:00Z |
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 |
https://hdl.handle.net/10216/129034 |
url |
https://hdl.handle.net/10216/129034 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2590-048X 10.1016/j.rinma.2020.100131 |
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 |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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