Evaluating the degree of gelation of PVC-U pipes. Comparison of currently available methods

Detalhes bibliográficos
Autor(a) principal: Real, L. E. Pimentel
Data de Publicação: 2018
Outros Autores: João, Isabel, Pimenta, S. I., Diogo, Herminio
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.21/8885
Resumo: Health and Safety policies have led to the recommendation of alternative tests to evaluate the resistance to dichloromethane to estimate the degree of gelation of rigid PVC pipes (PVC-U). In this work, we confirm that DSC is the best alternative method for evaluating the degree of gelation of rigid PVC pipes, using the relation between the enthalpy of fusion of primary and secondary crystallites, which were measured from respective endotherms. The suitability of this method is established by comparison with experimental results obtained with the test for determining the resistance to dichloromethane. Indeed, this method has proven to be fairly reliable and is the only one that allows the quantification of the degree of gelation.
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spelling Evaluating the degree of gelation of PVC-U pipes. Comparison of currently available methodsPVC-UDegree of gelationDichloromethaneDifferential scanning calorimetryTensile propertiesHealth and Safety policies have led to the recommendation of alternative tests to evaluate the resistance to dichloromethane to estimate the degree of gelation of rigid PVC pipes (PVC-U). In this work, we confirm that DSC is the best alternative method for evaluating the degree of gelation of rigid PVC pipes, using the relation between the enthalpy of fusion of primary and secondary crystallites, which were measured from respective endotherms. The suitability of this method is established by comparison with experimental results obtained with the test for determining the resistance to dichloromethane. Indeed, this method has proven to be fairly reliable and is the only one that allows the quantification of the degree of gelation.ElsevierRCIPLReal, L. E. PimentelJoão, IsabelPimenta, S. I.Diogo, Herminio2018-10-01T10:33:15Z2018-092018-09-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/8885engREAL, L. E. Pimentel; [et al] – Evaluating the degree of gelation of PVC-U pipes. Comparison of currently available methods. Polymer Testing. ISSN 0142-9418. Vol. 70 (2018), pp. 481-4850142-9418https://doi.org/10.1016/j.polymertesting.2018.08.001metadata only accessinfo: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:RCAAP2023-08-03T09:56:55Zoai:repositorio.ipl.pt:10400.21/8885Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:17:34.961609Repositório 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 Evaluating the degree of gelation of PVC-U pipes. Comparison of currently available methods
title Evaluating the degree of gelation of PVC-U pipes. Comparison of currently available methods
spellingShingle Evaluating the degree of gelation of PVC-U pipes. Comparison of currently available methods
Real, L. E. Pimentel
PVC-U
Degree of gelation
Dichloromethane
Differential scanning calorimetry
Tensile properties
title_short Evaluating the degree of gelation of PVC-U pipes. Comparison of currently available methods
title_full Evaluating the degree of gelation of PVC-U pipes. Comparison of currently available methods
title_fullStr Evaluating the degree of gelation of PVC-U pipes. Comparison of currently available methods
title_full_unstemmed Evaluating the degree of gelation of PVC-U pipes. Comparison of currently available methods
title_sort Evaluating the degree of gelation of PVC-U pipes. Comparison of currently available methods
author Real, L. E. Pimentel
author_facet Real, L. E. Pimentel
João, Isabel
Pimenta, S. I.
Diogo, Herminio
author_role author
author2 João, Isabel
Pimenta, S. I.
Diogo, Herminio
author2_role author
author
author
dc.contributor.none.fl_str_mv RCIPL
dc.contributor.author.fl_str_mv Real, L. E. Pimentel
João, Isabel
Pimenta, S. I.
Diogo, Herminio
dc.subject.por.fl_str_mv PVC-U
Degree of gelation
Dichloromethane
Differential scanning calorimetry
Tensile properties
topic PVC-U
Degree of gelation
Dichloromethane
Differential scanning calorimetry
Tensile properties
description Health and Safety policies have led to the recommendation of alternative tests to evaluate the resistance to dichloromethane to estimate the degree of gelation of rigid PVC pipes (PVC-U). In this work, we confirm that DSC is the best alternative method for evaluating the degree of gelation of rigid PVC pipes, using the relation between the enthalpy of fusion of primary and secondary crystallites, which were measured from respective endotherms. The suitability of this method is established by comparison with experimental results obtained with the test for determining the resistance to dichloromethane. Indeed, this method has proven to be fairly reliable and is the only one that allows the quantification of the degree of gelation.
publishDate 2018
dc.date.none.fl_str_mv 2018-10-01T10:33:15Z
2018-09
2018-09-01T00:00:00Z
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 http://hdl.handle.net/10400.21/8885
url http://hdl.handle.net/10400.21/8885
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv REAL, L. E. Pimentel; [et al] – Evaluating the degree of gelation of PVC-U pipes. Comparison of currently available methods. Polymer Testing. ISSN 0142-9418. Vol. 70 (2018), pp. 481-485
0142-9418
https://doi.org/10.1016/j.polymertesting.2018.08.001
dc.rights.driver.fl_str_mv metadata only access
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rights_invalid_str_mv metadata only access
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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
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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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