Evaluation of thermal decomposition kinetics of poly (lactic acid)/ethylene elastomer (EE) blends

Detalhes bibliográficos
Autor(a) principal: Bernardes, Giordano Pierozan
Data de Publicação: 2023
Outros Autores: Andrade, Matheus de Prá, Poletto, Matheus, Luiz, Nathalia da Rosa, Santana, Ruth Marlene Campomanes, Forte, Maria Madalena de Camargo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/274678
Resumo: The influences of ethylene-based elastomer (EE) and the compatibilizer agent ethylene-butyl acrylate-glycidyl methacrylate (EBAGMA) on the thermal degradation of PLA/EE blends were evaluated by the thermal degradation kinetics and thermodynamic parameters using thermogravimetry. The presence of EE and EBAGMA synergistically improved the PLA thermal stability. The temperature of 10% of mass loss (T10%) of PLA was around 365 °C, while in the compatibilized PLA/EE blend, this property increased to 370 °C. The PLA average activation energy (Ea) reduced in the PLA/EE blend (from 96 kJ/mol to 78 kJ/mol), while the presence of EBAGMA in the PLA/EE blend increased the Ea due to a better blend compatibilization. The solid-state thermal degradation of the PLA and PLA/EE blends was classified as a D-type degradation mechanism. In general, the addition of EE increased the thermodynamic parameters when compared to PLA and the compatibilized blend due to the increase in the collision rate between the components over the thermal decomposition.
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spelling Bernardes, Giordano PierozanAndrade, Matheus de PráPoletto, MatheusLuiz, Nathalia da RosaSantana, Ruth Marlene CampomanesForte, Maria Madalena de Camargo2024-04-12T06:20:08Z20232073-4360http://hdl.handle.net/10183/274678001199632The influences of ethylene-based elastomer (EE) and the compatibilizer agent ethylene-butyl acrylate-glycidyl methacrylate (EBAGMA) on the thermal degradation of PLA/EE blends were evaluated by the thermal degradation kinetics and thermodynamic parameters using thermogravimetry. The presence of EE and EBAGMA synergistically improved the PLA thermal stability. The temperature of 10% of mass loss (T10%) of PLA was around 365 °C, while in the compatibilized PLA/EE blend, this property increased to 370 °C. The PLA average activation energy (Ea) reduced in the PLA/EE blend (from 96 kJ/mol to 78 kJ/mol), while the presence of EBAGMA in the PLA/EE blend increased the Ea due to a better blend compatibilization. The solid-state thermal degradation of the PLA and PLA/EE blends was classified as a D-type degradation mechanism. In general, the addition of EE increased the thermodynamic parameters when compared to PLA and the compatibilized blend due to the increase in the collision rate between the components over the thermal decomposition.application/pdfengPolymers [recurso eletrônico]. Basel. Vol. 15, n. 21 (Nov. 2023), [Article] 4324, p. 1-18Blendas de polímerosPoli(ácido lático)Decomposição térmicaPLAPolymer blendsCompatibilizationThermal propertiesSolid-state reactionEvaluation of thermal decomposition kinetics of poly (lactic acid)/ethylene elastomer (EE) blendsEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001199632.pdf.txt001199632.pdf.txtExtracted Texttext/plain67586http://www.lume.ufrgs.br/bitstream/10183/274678/2/001199632.pdf.txtfa5179005c417cb309a53cc245d4781eMD52ORIGINAL001199632.pdfTexto completo (inglês)application/pdf1976597http://www.lume.ufrgs.br/bitstream/10183/274678/1/001199632.pdf298f3f3cb893d90af74e56a221c2a19eMD5110183/2746782024-04-13 06:45:55.553471oai:www.lume.ufrgs.br:10183/274678Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-04-13T09:45:55Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Evaluation of thermal decomposition kinetics of poly (lactic acid)/ethylene elastomer (EE) blends
title Evaluation of thermal decomposition kinetics of poly (lactic acid)/ethylene elastomer (EE) blends
spellingShingle Evaluation of thermal decomposition kinetics of poly (lactic acid)/ethylene elastomer (EE) blends
Bernardes, Giordano Pierozan
Blendas de polímeros
Poli(ácido lático)
Decomposição térmica
PLA
Polymer blends
Compatibilization
Thermal properties
Solid-state reaction
title_short Evaluation of thermal decomposition kinetics of poly (lactic acid)/ethylene elastomer (EE) blends
title_full Evaluation of thermal decomposition kinetics of poly (lactic acid)/ethylene elastomer (EE) blends
title_fullStr Evaluation of thermal decomposition kinetics of poly (lactic acid)/ethylene elastomer (EE) blends
title_full_unstemmed Evaluation of thermal decomposition kinetics of poly (lactic acid)/ethylene elastomer (EE) blends
title_sort Evaluation of thermal decomposition kinetics of poly (lactic acid)/ethylene elastomer (EE) blends
author Bernardes, Giordano Pierozan
author_facet Bernardes, Giordano Pierozan
Andrade, Matheus de Prá
Poletto, Matheus
Luiz, Nathalia da Rosa
Santana, Ruth Marlene Campomanes
Forte, Maria Madalena de Camargo
author_role author
author2 Andrade, Matheus de Prá
Poletto, Matheus
Luiz, Nathalia da Rosa
Santana, Ruth Marlene Campomanes
Forte, Maria Madalena de Camargo
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Bernardes, Giordano Pierozan
Andrade, Matheus de Prá
Poletto, Matheus
Luiz, Nathalia da Rosa
Santana, Ruth Marlene Campomanes
Forte, Maria Madalena de Camargo
dc.subject.por.fl_str_mv Blendas de polímeros
Poli(ácido lático)
Decomposição térmica
topic Blendas de polímeros
Poli(ácido lático)
Decomposição térmica
PLA
Polymer blends
Compatibilization
Thermal properties
Solid-state reaction
dc.subject.eng.fl_str_mv PLA
Polymer blends
Compatibilization
Thermal properties
Solid-state reaction
description The influences of ethylene-based elastomer (EE) and the compatibilizer agent ethylene-butyl acrylate-glycidyl methacrylate (EBAGMA) on the thermal degradation of PLA/EE blends were evaluated by the thermal degradation kinetics and thermodynamic parameters using thermogravimetry. The presence of EE and EBAGMA synergistically improved the PLA thermal stability. The temperature of 10% of mass loss (T10%) of PLA was around 365 °C, while in the compatibilized PLA/EE blend, this property increased to 370 °C. The PLA average activation energy (Ea) reduced in the PLA/EE blend (from 96 kJ/mol to 78 kJ/mol), while the presence of EBAGMA in the PLA/EE blend increased the Ea due to a better blend compatibilization. The solid-state thermal degradation of the PLA and PLA/EE blends was classified as a D-type degradation mechanism. In general, the addition of EE increased the thermodynamic parameters when compared to PLA and the compatibilized blend due to the increase in the collision rate between the components over the thermal decomposition.
publishDate 2023
dc.date.issued.fl_str_mv 2023
dc.date.accessioned.fl_str_mv 2024-04-12T06:20:08Z
dc.type.driver.fl_str_mv Estrangeiro
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/274678
dc.identifier.issn.pt_BR.fl_str_mv 2073-4360
dc.identifier.nrb.pt_BR.fl_str_mv 001199632
identifier_str_mv 2073-4360
001199632
url http://hdl.handle.net/10183/274678
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Polymers [recurso eletrônico]. Basel. Vol. 15, n. 21 (Nov. 2023), [Article] 4324, p. 1-18
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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institution UFRGS
reponame_str Repositório Institucional da UFRGS
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