Evaluation of Decomposition Kinetics of Poly (Ether-Ether-Ketone) by Thermogravimetric Analysis
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1516-14392013005000202 http://hdl.handle.net/11449/113586 |
Resumo: | The non-isothermal thermogravimetric methods have been used extensively for the determination of kinetic parameters in polymers. The poly (ether ketones) are used as matrix in advanced high performance composites due its high thermal stability, excellent environmental performance and superior mechanical properties. In this work, the non-isothermal decomposition kinetics of the polymer poly (ether ether ketone) (PEEK) was evaluated in nitrogen and synthetic air atmospheres, using the Flynn-Wall-Ozawa and Coats Redfern models. The results showed that the necessary time for the material decomposes in 5% is approximately 216 years if it is submitted to temperatures of 350 degrees C in nitrogen atmosphere. On the other hand, if the material is submitted to air atmosphere, this decomposition time drops to about 1,05 years in the same temperature and for the same conversion rate. The decomposition kinetics study by Coats Redfern showed that the D3 mechanism (three-dimensional diffusion (Jander equation)) had better adjustment to the decomposition kinetics of the material in nitrogen atmosphere, while in synthetic air the R1 mechanism (phase boundary controlled reaction (one-dimensional movement)) has better adjustment to the decomposition kinetics of the material. |
id |
UNSP_33b9691516269e707602deff4511c572 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/113586 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Evaluation of Decomposition Kinetics of Poly (Ether-Ether-Ketone) by Thermogravimetric Analysispoly (ether ether ketone)degradation kineticthermogravimetryThe non-isothermal thermogravimetric methods have been used extensively for the determination of kinetic parameters in polymers. The poly (ether ketones) are used as matrix in advanced high performance composites due its high thermal stability, excellent environmental performance and superior mechanical properties. In this work, the non-isothermal decomposition kinetics of the polymer poly (ether ether ketone) (PEEK) was evaluated in nitrogen and synthetic air atmospheres, using the Flynn-Wall-Ozawa and Coats Redfern models. The results showed that the necessary time for the material decomposes in 5% is approximately 216 years if it is submitted to temperatures of 350 degrees C in nitrogen atmosphere. On the other hand, if the material is submitted to air atmosphere, this decomposition time drops to about 1,05 years in the same temperature and for the same conversion rate. The decomposition kinetics study by Coats Redfern showed that the D3 mechanism (three-dimensional diffusion (Jander equation)) had better adjustment to the decomposition kinetics of the material in nitrogen atmosphere, while in synthetic air the R1 mechanism (phase boundary controlled reaction (one-dimensional movement)) has better adjustment to the decomposition kinetics of the material.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)UNESP, Univ Estadual Paulista, Fac Engn Guaratingueta, Dept Mat & Tecnol, Guaratingueta, SP, BrazilIAE, DCTA, Div Mat, Sao Jose Dos Campos, SP, BrazilUNESP, Univ Estadual Paulista, Fac Engn Guaratingueta, Dept Mat & Tecnol, Guaratingueta, SP, BrazilUniv Fed Sao Carlos, Dept Engenharia MaterialsUniversidade Estadual Paulista (Unesp)IAEVasconcelos, Gibran da Cunha [UNESP]Mazur, Rogerio Lago [UNESP]Ribeiro, Bruno [UNESP]Botelho, Edson Coccieri [UNESP]Costa, Michelle Leali [UNESP]2014-12-03T13:11:48Z2014-12-03T13:11:48Z2014-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article227-235application/pdfhttp://dx.doi.org/10.1590/S1516-14392013005000202Materials Research-ibero-american Journal Of Materials. Sao Carlos: Univ Fed Sao Carlos, Dept Engenharia Materials, v. 17, n. 1, p. 227-235, 2014.1516-1439http://hdl.handle.net/11449/11358610.1590/S1516-14392013005000202S1516-14392013005000202WOS:000333047900030S1516-14392014000100030.pdf43780783373436600000-0001-8338-4879Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterials Research-ibero-american Journal of Materials1.1030,398info:eu-repo/semantics/openAccess2023-11-16T06:12:48Zoai:repositorio.unesp.br:11449/113586Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-16T06:12:48Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Evaluation of Decomposition Kinetics of Poly (Ether-Ether-Ketone) by Thermogravimetric Analysis |
title |
Evaluation of Decomposition Kinetics of Poly (Ether-Ether-Ketone) by Thermogravimetric Analysis |
spellingShingle |
Evaluation of Decomposition Kinetics of Poly (Ether-Ether-Ketone) by Thermogravimetric Analysis Vasconcelos, Gibran da Cunha [UNESP] poly (ether ether ketone) degradation kinetic thermogravimetry |
title_short |
Evaluation of Decomposition Kinetics of Poly (Ether-Ether-Ketone) by Thermogravimetric Analysis |
title_full |
Evaluation of Decomposition Kinetics of Poly (Ether-Ether-Ketone) by Thermogravimetric Analysis |
title_fullStr |
Evaluation of Decomposition Kinetics of Poly (Ether-Ether-Ketone) by Thermogravimetric Analysis |
title_full_unstemmed |
Evaluation of Decomposition Kinetics of Poly (Ether-Ether-Ketone) by Thermogravimetric Analysis |
title_sort |
Evaluation of Decomposition Kinetics of Poly (Ether-Ether-Ketone) by Thermogravimetric Analysis |
author |
Vasconcelos, Gibran da Cunha [UNESP] |
author_facet |
Vasconcelos, Gibran da Cunha [UNESP] Mazur, Rogerio Lago [UNESP] Ribeiro, Bruno [UNESP] Botelho, Edson Coccieri [UNESP] Costa, Michelle Leali [UNESP] |
author_role |
author |
author2 |
Mazur, Rogerio Lago [UNESP] Ribeiro, Bruno [UNESP] Botelho, Edson Coccieri [UNESP] Costa, Michelle Leali [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) IAE |
dc.contributor.author.fl_str_mv |
Vasconcelos, Gibran da Cunha [UNESP] Mazur, Rogerio Lago [UNESP] Ribeiro, Bruno [UNESP] Botelho, Edson Coccieri [UNESP] Costa, Michelle Leali [UNESP] |
dc.subject.por.fl_str_mv |
poly (ether ether ketone) degradation kinetic thermogravimetry |
topic |
poly (ether ether ketone) degradation kinetic thermogravimetry |
description |
The non-isothermal thermogravimetric methods have been used extensively for the determination of kinetic parameters in polymers. The poly (ether ketones) are used as matrix in advanced high performance composites due its high thermal stability, excellent environmental performance and superior mechanical properties. In this work, the non-isothermal decomposition kinetics of the polymer poly (ether ether ketone) (PEEK) was evaluated in nitrogen and synthetic air atmospheres, using the Flynn-Wall-Ozawa and Coats Redfern models. The results showed that the necessary time for the material decomposes in 5% is approximately 216 years if it is submitted to temperatures of 350 degrees C in nitrogen atmosphere. On the other hand, if the material is submitted to air atmosphere, this decomposition time drops to about 1,05 years in the same temperature and for the same conversion rate. The decomposition kinetics study by Coats Redfern showed that the D3 mechanism (three-dimensional diffusion (Jander equation)) had better adjustment to the decomposition kinetics of the material in nitrogen atmosphere, while in synthetic air the R1 mechanism (phase boundary controlled reaction (one-dimensional movement)) has better adjustment to the decomposition kinetics of the material. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12-03T13:11:48Z 2014-12-03T13:11:48Z 2014-01-01 |
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/10.1590/S1516-14392013005000202 Materials Research-ibero-american Journal Of Materials. Sao Carlos: Univ Fed Sao Carlos, Dept Engenharia Materials, v. 17, n. 1, p. 227-235, 2014. 1516-1439 http://hdl.handle.net/11449/113586 10.1590/S1516-14392013005000202 S1516-14392013005000202 WOS:000333047900030 S1516-14392014000100030.pdf 4378078337343660 0000-0001-8338-4879 |
url |
http://dx.doi.org/10.1590/S1516-14392013005000202 http://hdl.handle.net/11449/113586 |
identifier_str_mv |
Materials Research-ibero-american Journal Of Materials. Sao Carlos: Univ Fed Sao Carlos, Dept Engenharia Materials, v. 17, n. 1, p. 227-235, 2014. 1516-1439 10.1590/S1516-14392013005000202 S1516-14392013005000202 WOS:000333047900030 S1516-14392014000100030.pdf 4378078337343660 0000-0001-8338-4879 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Materials Research-ibero-american Journal of Materials 1.103 0,398 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
227-235 application/pdf |
dc.publisher.none.fl_str_mv |
Univ Fed Sao Carlos, Dept Engenharia Materials |
publisher.none.fl_str_mv |
Univ Fed Sao Carlos, Dept Engenharia Materials |
dc.source.none.fl_str_mv |
Web of Science 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 |
|
_version_ |
1797789725707206656 |