Phase inversion prediction during the bulk synthesis of high-impact polystyrene: a fluid-dynamic approach

"High-Impact Polystyrene (HIPS) is a heterogeneous material constituted by a rubber (PB) particles dispersed in a vitreous polystyrene (PS) matrix. Two typical morphologies are usually identified: ‘salami’ (larger rubber particle with several PS occlusions) or ‘core-shell’ (smaller particle wi...

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Autores principales: Maffi, Juan M., Estenoz, Diana
Formato: Pósters publishedVersion
Lenguaje:Inglés
Publicado: 2022
Materias:
POLIESTIRENOS
POLIMERIZACION
Acceso en línea:https://ri.itba.edu.ar/handle/123456789/4041
Aporte de:
Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA) de Instituto Tecnológico de Buenos Aires (ITBA)
id I32-R138-123456789-4041
record_format dspace
spelling I32-R138-123456789-40412022-12-07T15:14:44Z Phase inversion prediction during the bulk synthesis of high-impact polystyrene: a fluid-dynamic approach Maffi, Juan M. Estenoz, Diana POLIESTIRENOS POLIMERIZACION "High-Impact Polystyrene (HIPS) is a heterogeneous material constituted by a rubber (PB) particles dispersed in a vitreous polystyrene (PS) matrix. Two typical morphologies are usually identified: ‘salami’ (larger rubber particle with several PS occlusions) or ‘core-shell’ (smaller particle with one large occlusion). The industrial continuous bulk HIPS process involves four main stages: dissolution, pre-polymerization, finishing and evolatilization. During the pre-polymerization, the mixture consists of a continuous PB-rich phase where PS-rich droplets grow as the reaction proceeds. At a critical point, the dispersed vitreous phase reaches a volume such that it becomes the continuous phase, through a co-continuous transition. This is the phase inversion (PI) point, and the material morphology is essentially defined at this stage, characterized by a sudden drop in the mixture’s apparent viscosity." 2022-11-28T18:17:08Z 2022-11-28T18:17:08Z 2021-11 Pósters info:eu-repo/semantics/publishedVersion https://ri.itba.edu.ar/handle/123456789/4041 en info:eu-repo/semantics/embargoedAccess application/pdf
institution Instituto Tecnológico de Buenos Aires (ITBA)
institution_str I-32
repository_str R-138
collection Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA)
language Inglés
topic POLIESTIRENOS
POLIMERIZACION
spellingShingle POLIESTIRENOS
POLIMERIZACION
Maffi, Juan M.
Estenoz, Diana
Phase inversion prediction during the bulk synthesis of high-impact polystyrene: a fluid-dynamic approach
topic_facet POLIESTIRENOS
POLIMERIZACION
description "High-Impact Polystyrene (HIPS) is a heterogeneous material constituted by a rubber (PB) particles dispersed in a vitreous polystyrene (PS) matrix. Two typical morphologies are usually identified: ‘salami’ (larger rubber particle with several PS occlusions) or ‘core-shell’ (smaller particle with one large occlusion). The industrial continuous bulk HIPS process involves four main stages: dissolution, pre-polymerization, finishing and evolatilization. During the pre-polymerization, the mixture consists of a continuous PB-rich phase where PS-rich droplets grow as the reaction proceeds. At a critical point, the dispersed vitreous phase reaches a volume such that it becomes the continuous phase, through a co-continuous transition. This is the phase inversion (PI) point, and the material morphology is essentially defined at this stage, characterized by a sudden drop in the mixture’s apparent viscosity."
format Pósters
publishedVersion
author Maffi, Juan M.
Estenoz, Diana
author_facet Maffi, Juan M.
Estenoz, Diana
author_sort Maffi, Juan M.
title Phase inversion prediction during the bulk synthesis of high-impact polystyrene: a fluid-dynamic approach
title_short Phase inversion prediction during the bulk synthesis of high-impact polystyrene: a fluid-dynamic approach
title_full Phase inversion prediction during the bulk synthesis of high-impact polystyrene: a fluid-dynamic approach
title_fullStr Phase inversion prediction during the bulk synthesis of high-impact polystyrene: a fluid-dynamic approach
title_full_unstemmed Phase inversion prediction during the bulk synthesis of high-impact polystyrene: a fluid-dynamic approach
title_sort phase inversion prediction during the bulk synthesis of high-impact polystyrene: a fluid-dynamic approach
publishDate 2022
url https://ri.itba.edu.ar/handle/123456789/4041
work_keys_str_mv AT maffijuanm phaseinversionpredictionduringthebulksynthesisofhighimpactpolystyreneafluiddynamicapproach
AT estenozdiana phaseinversionpredictionduringthebulksynthesisofhighimpactpolystyreneafluiddynamicapproach
_version_ 1765661002741841920

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