Experimental and modeling studies of binary organic eutectic systems to be used as stabilizers for nitrate esters-based energetic materials
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10198/20238 |
Resumo: | Four binary mixtures with potential for stabilizing energetic materials have been investigated. The phase diagrams of N-(2-methoxyethyl)-p-nitroaniline þ diphenylamine, N-(2-methoxyethyl)-p-nitroaniline þ N- (2-acetoxyethyl)-p-nitroaniline, N-(2-methoxyethyl)-p-nitroaniline þ 2-nitrodiphenylamine, and N-(2- methoxyethyl)-p-nitroaniline þ 1,3-diethyl-1,3-diphenylurea have been determined by differential scanning calorimetry. All systems display a simple eutectic behavior. Consistency tests have been applied to inspect the quality of the SLE data, showing very satisfactory quality factors. The SLE data have also been correlated by Wilson and NRTL models. The employed equations calculated the equilibrium temperatures with a root mean square deviations varying from 1.37 to 2.29 K. These models have been applied to compute the excess thermodynamic functions as well, giving highly comparable values for a further qualitative and quantitative analysis. The results showa positive deviation fromideality for all the investigated systems due to the dominant effect of the self-association molecules. The XRD studies revealed the existence of weak interactions between the components in the formed eutectics and suggested that they are mechanical systems. |
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Experimental and modeling studies of binary organic eutectic systems to be used as stabilizers for nitrate esters-based energetic materialsEutecticExcess thermodynamic propertiesModelingPropellant stabilitySolid-liquid equilibriumXRDFour binary mixtures with potential for stabilizing energetic materials have been investigated. The phase diagrams of N-(2-methoxyethyl)-p-nitroaniline þ diphenylamine, N-(2-methoxyethyl)-p-nitroaniline þ N- (2-acetoxyethyl)-p-nitroaniline, N-(2-methoxyethyl)-p-nitroaniline þ 2-nitrodiphenylamine, and N-(2- methoxyethyl)-p-nitroaniline þ 1,3-diethyl-1,3-diphenylurea have been determined by differential scanning calorimetry. All systems display a simple eutectic behavior. Consistency tests have been applied to inspect the quality of the SLE data, showing very satisfactory quality factors. The SLE data have also been correlated by Wilson and NRTL models. The employed equations calculated the equilibrium temperatures with a root mean square deviations varying from 1.37 to 2.29 K. These models have been applied to compute the excess thermodynamic functions as well, giving highly comparable values for a further qualitative and quantitative analysis. The results showa positive deviation fromideality for all the investigated systems due to the dominant effect of the self-association molecules. The XRD studies revealed the existence of weak interactions between the components in the formed eutectics and suggested that they are mechanical systems.The authors are grateful for the financial support of this research from Ecole Militaire Polytechnique (Doctoral Training Program) and Project POCI-01-0145-FEDER-006984 (Ref. FCT UID/EQU/50020/2019) e Associate Laboratory LSRE-LCM e funded by European Regional Development Fund (ERDF) through COMPETE2020 e Programa Operacional Competitividade e Internacionalização (POCI) e and by national funds through FCT e Fundação para a Ciência e a Tecnologia I.P.Biblioteca Digital do IPBChelouche, SalimTrache, DjalalPinho, SimãoKhimeche, Kamel2018-01-19T10:00:00Z20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/20238engChelouche, S.; Trache, Djalal; Pinho, Simão P.; Khimeche, K. (2019). Experimental and modeling studies of binary organic eutectic systems to be used as stabilizers for nitrate esters-based energetic materials. Fluid Phase Equilibria. ISSN 0378-3812. 498, p. 104-1150378-381210.1016/j.fluid.2019.06.021info: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:RCAAP2023-11-21T10:46:07Zoai:bibliotecadigital.ipb.pt:10198/20238Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:11:01.953969Repositório 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 |
Experimental and modeling studies of binary organic eutectic systems to be used as stabilizers for nitrate esters-based energetic materials |
title |
Experimental and modeling studies of binary organic eutectic systems to be used as stabilizers for nitrate esters-based energetic materials |
spellingShingle |
Experimental and modeling studies of binary organic eutectic systems to be used as stabilizers for nitrate esters-based energetic materials Chelouche, Salim Eutectic Excess thermodynamic properties Modeling Propellant stability Solid-liquid equilibrium XRD |
title_short |
Experimental and modeling studies of binary organic eutectic systems to be used as stabilizers for nitrate esters-based energetic materials |
title_full |
Experimental and modeling studies of binary organic eutectic systems to be used as stabilizers for nitrate esters-based energetic materials |
title_fullStr |
Experimental and modeling studies of binary organic eutectic systems to be used as stabilizers for nitrate esters-based energetic materials |
title_full_unstemmed |
Experimental and modeling studies of binary organic eutectic systems to be used as stabilizers for nitrate esters-based energetic materials |
title_sort |
Experimental and modeling studies of binary organic eutectic systems to be used as stabilizers for nitrate esters-based energetic materials |
author |
Chelouche, Salim |
author_facet |
Chelouche, Salim Trache, Djalal Pinho, Simão Khimeche, Kamel |
author_role |
author |
author2 |
Trache, Djalal Pinho, Simão Khimeche, Kamel |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Chelouche, Salim Trache, Djalal Pinho, Simão Khimeche, Kamel |
dc.subject.por.fl_str_mv |
Eutectic Excess thermodynamic properties Modeling Propellant stability Solid-liquid equilibrium XRD |
topic |
Eutectic Excess thermodynamic properties Modeling Propellant stability Solid-liquid equilibrium XRD |
description |
Four binary mixtures with potential for stabilizing energetic materials have been investigated. The phase diagrams of N-(2-methoxyethyl)-p-nitroaniline þ diphenylamine, N-(2-methoxyethyl)-p-nitroaniline þ N- (2-acetoxyethyl)-p-nitroaniline, N-(2-methoxyethyl)-p-nitroaniline þ 2-nitrodiphenylamine, and N-(2- methoxyethyl)-p-nitroaniline þ 1,3-diethyl-1,3-diphenylurea have been determined by differential scanning calorimetry. All systems display a simple eutectic behavior. Consistency tests have been applied to inspect the quality of the SLE data, showing very satisfactory quality factors. The SLE data have also been correlated by Wilson and NRTL models. The employed equations calculated the equilibrium temperatures with a root mean square deviations varying from 1.37 to 2.29 K. These models have been applied to compute the excess thermodynamic functions as well, giving highly comparable values for a further qualitative and quantitative analysis. The results showa positive deviation fromideality for all the investigated systems due to the dominant effect of the self-association molecules. The XRD studies revealed the existence of weak interactions between the components in the formed eutectics and suggested that they are mechanical systems. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-19T10:00:00Z 2019 2019-01-01T00:00:00Z |
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 |
http://hdl.handle.net/10198/20238 |
url |
http://hdl.handle.net/10198/20238 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Chelouche, S.; Trache, Djalal; Pinho, Simão P.; Khimeche, K. (2019). Experimental and modeling studies of binary organic eutectic systems to be used as stabilizers for nitrate esters-based energetic materials. Fluid Phase Equilibria. ISSN 0378-3812. 498, p. 104-115 0378-3812 10.1016/j.fluid.2019.06.021 |
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 |
repository.mail.fl_str_mv |
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1799135377414422528 |