Evaluation of thermal decomposition kinetics of poly (lactic acid)/ethylene elastomer (EE) blends
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , |
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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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 info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
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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application/pdf |
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