Modeling Melt Spinning with Stress Induced Crystallization at High Take Up Velocities: Numerical Results for the PET Melt

Autores
Ottone, Mariel Lorena; Peirotti, Marta Beatriz; Deiber, Julio Alcides
Año de publicación
2002
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The purpose of this work is to present a 2-D thermo-rheological model for high take up velocities that can predict numerically in the filament domain, the axial velocity profile together with the radial and axial resolutions of stresses, temperature and degree of crystallization. The rheology of the filament is described through a constitutive equation that results from the combination of the Phan-Thien and Tanner viscoelastic model for the amorphous phase and the kinetic model of the rigid dumbbell for the crystalline phase immersed in the melt. The model is thus able to predict the thermal and mechanical coupling between both phases through the degree of transformation (relative degree of crystallization) when the balances of mass, momentum and energy are invoked. The effects of stress induced crystallization, viscoelasticity, friction of cooling air, filament inertia, gravity and surface tension are all considered together with the temperature dependency of polymer and cooling air thermo-physical properties. The rate of crystallization is evaluated through the nonisothermal Avrami-Nakamura equation. Also, the relaxation times of both phases are function of temperature and degree of transformation. Numerical predictions of the model compare well with experimental data reported in the literature for a PET melt at a take up velocity of 5490 m/min. Also, consistently with experimental observations reported in the literature, the “skin-core” structure is predicted. It is relevant to indicate that the model analyzed here can be evaluated from low to high take up velocities, and when the degree of crystallization becomes negligible, the one-phase model is recovered continuously.
Fil: Ottone, Mariel Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Peirotti, Marta Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Deiber, Julio Alcides. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Materia
MELT SPINNING
STRESS INDUCED CRYSTALLIZATION
FILAMENT NECKING
POLYETHYLENE THEREPHTALATE FILAMENT
HIGH TAKE UP VELOCITY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/30066
Acceder
id CONICETDig_0faa23924e7fe71efad1d83dd83ac925
oai_identifier_str oai:ri.conicet.gov.ar:11336/30066
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Modeling Melt Spinning with Stress Induced Crystallization at High Take Up Velocities: Numerical Results for the PET MeltOttone, Mariel LorenaPeirotti, Marta BeatrizDeiber, Julio AlcidesMELT SPINNINGSTRESS INDUCED CRYSTALLIZATIONFILAMENT NECKINGPOLYETHYLENE THEREPHTALATE FILAMENTHIGH TAKE UP VELOCITYhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The purpose of this work is to present a 2-D thermo-rheological model for high take up velocities that can predict numerically in the filament domain, the axial velocity profile together with the radial and axial resolutions of stresses, temperature and degree of crystallization. The rheology of the filament is described through a constitutive equation that results from the combination of the Phan-Thien and Tanner viscoelastic model for the amorphous phase and the kinetic model of the rigid dumbbell for the crystalline phase immersed in the melt. The model is thus able to predict the thermal and mechanical coupling between both phases through the degree of transformation (relative degree of crystallization) when the balances of mass, momentum and energy are invoked. The effects of stress induced crystallization, viscoelasticity, friction of cooling air, filament inertia, gravity and surface tension are all considered together with the temperature dependency of polymer and cooling air thermo-physical properties. The rate of crystallization is evaluated through the nonisothermal Avrami-Nakamura equation. Also, the relaxation times of both phases are function of temperature and degree of transformation. Numerical predictions of the model compare well with experimental data reported in the literature for a PET melt at a take up velocity of 5490 m/min. Also, consistently with experimental observations reported in the literature, the “skin-core” structure is predicted. It is relevant to indicate that the model analyzed here can be evaluated from low to high take up velocities, and when the degree of crystallization becomes negligible, the one-phase model is recovered continuously.Fil: Ottone, Mariel Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Peirotti, Marta Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Deiber, Julio Alcides. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaAsociación Argentina de Mecánica Computacional2002-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/30066Ottone, Mariel Lorena; Peirotti, Marta Beatriz; Deiber, Julio Alcides; Modeling Melt Spinning with Stress Induced Crystallization at High Take Up Velocities: Numerical Results for the PET Melt; Asociación Argentina de Mecánica Computacional; Mecánica Computacional; XXII; 11-2002; 67-851666-6070CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.cimec.org.ar/ojs/index.php/mc/article/view/878/836info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:09:41Zoai:ri.conicet.gov.ar:11336/30066instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:09:42.119CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Modeling Melt Spinning with Stress Induced Crystallization at High Take Up Velocities: Numerical Results for the PET Melt
title Modeling Melt Spinning with Stress Induced Crystallization at High Take Up Velocities: Numerical Results for the PET Melt
spellingShingle Modeling Melt Spinning with Stress Induced Crystallization at High Take Up Velocities: Numerical Results for the PET Melt
Ottone, Mariel Lorena
MELT SPINNING
STRESS INDUCED CRYSTALLIZATION
FILAMENT NECKING
POLYETHYLENE THEREPHTALATE FILAMENT
HIGH TAKE UP VELOCITY
title_short Modeling Melt Spinning with Stress Induced Crystallization at High Take Up Velocities: Numerical Results for the PET Melt
title_full Modeling Melt Spinning with Stress Induced Crystallization at High Take Up Velocities: Numerical Results for the PET Melt
title_fullStr Modeling Melt Spinning with Stress Induced Crystallization at High Take Up Velocities: Numerical Results for the PET Melt
title_full_unstemmed Modeling Melt Spinning with Stress Induced Crystallization at High Take Up Velocities: Numerical Results for the PET Melt
title_sort Modeling Melt Spinning with Stress Induced Crystallization at High Take Up Velocities: Numerical Results for the PET Melt
dc.creator.none.fl_str_mv Ottone, Mariel Lorena
Peirotti, Marta Beatriz
Deiber, Julio Alcides
author Ottone, Mariel Lorena
author_facet Ottone, Mariel Lorena
Peirotti, Marta Beatriz
Deiber, Julio Alcides
author_role author
author2 Peirotti, Marta Beatriz
Deiber, Julio Alcides
author2_role author
author
dc.subject.none.fl_str_mv MELT SPINNING
STRESS INDUCED CRYSTALLIZATION
FILAMENT NECKING
POLYETHYLENE THEREPHTALATE FILAMENT
HIGH TAKE UP VELOCITY
topic MELT SPINNING
STRESS INDUCED CRYSTALLIZATION
FILAMENT NECKING
POLYETHYLENE THEREPHTALATE FILAMENT
HIGH TAKE UP VELOCITY
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The purpose of this work is to present a 2-D thermo-rheological model for high take up velocities that can predict numerically in the filament domain, the axial velocity profile together with the radial and axial resolutions of stresses, temperature and degree of crystallization. The rheology of the filament is described through a constitutive equation that results from the combination of the Phan-Thien and Tanner viscoelastic model for the amorphous phase and the kinetic model of the rigid dumbbell for the crystalline phase immersed in the melt. The model is thus able to predict the thermal and mechanical coupling between both phases through the degree of transformation (relative degree of crystallization) when the balances of mass, momentum and energy are invoked. The effects of stress induced crystallization, viscoelasticity, friction of cooling air, filament inertia, gravity and surface tension are all considered together with the temperature dependency of polymer and cooling air thermo-physical properties. The rate of crystallization is evaluated through the nonisothermal Avrami-Nakamura equation. Also, the relaxation times of both phases are function of temperature and degree of transformation. Numerical predictions of the model compare well with experimental data reported in the literature for a PET melt at a take up velocity of 5490 m/min. Also, consistently with experimental observations reported in the literature, the “skin-core” structure is predicted. It is relevant to indicate that the model analyzed here can be evaluated from low to high take up velocities, and when the degree of crystallization becomes negligible, the one-phase model is recovered continuously.
Fil: Ottone, Mariel Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Peirotti, Marta Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Deiber, Julio Alcides. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
description The purpose of this work is to present a 2-D thermo-rheological model for high take up velocities that can predict numerically in the filament domain, the axial velocity profile together with the radial and axial resolutions of stresses, temperature and degree of crystallization. The rheology of the filament is described through a constitutive equation that results from the combination of the Phan-Thien and Tanner viscoelastic model for the amorphous phase and the kinetic model of the rigid dumbbell for the crystalline phase immersed in the melt. The model is thus able to predict the thermal and mechanical coupling between both phases through the degree of transformation (relative degree of crystallization) when the balances of mass, momentum and energy are invoked. The effects of stress induced crystallization, viscoelasticity, friction of cooling air, filament inertia, gravity and surface tension are all considered together with the temperature dependency of polymer and cooling air thermo-physical properties. The rate of crystallization is evaluated through the nonisothermal Avrami-Nakamura equation. Also, the relaxation times of both phases are function of temperature and degree of transformation. Numerical predictions of the model compare well with experimental data reported in the literature for a PET melt at a take up velocity of 5490 m/min. Also, consistently with experimental observations reported in the literature, the “skin-core” structure is predicted. It is relevant to indicate that the model analyzed here can be evaluated from low to high take up velocities, and when the degree of crystallization becomes negligible, the one-phase model is recovered continuously.
publishDate 2002
dc.date.none.fl_str_mv 2002-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/30066
Ottone, Mariel Lorena; Peirotti, Marta Beatriz; Deiber, Julio Alcides; Modeling Melt Spinning with Stress Induced Crystallization at High Take Up Velocities: Numerical Results for the PET Melt; Asociación Argentina de Mecánica Computacional; Mecánica Computacional; XXII; 11-2002; 67-85
1666-6070
CONICET Digital
CONICET
url http://hdl.handle.net/11336/30066
identifier_str_mv Ottone, Mariel Lorena; Peirotti, Marta Beatriz; Deiber, Julio Alcides; Modeling Melt Spinning with Stress Induced Crystallization at High Take Up Velocities: Numerical Results for the PET Melt; Asociación Argentina de Mecánica Computacional; Mecánica Computacional; XXII; 11-2002; 67-85
1666-6070
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.cimec.org.ar/ojs/index.php/mc/article/view/878/836
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Asociación Argentina de Mecánica Computacional
publisher.none.fl_str_mv Asociación Argentina de Mecánica Computacional
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842980479843696640
score 12.993085

Publicaciones similares