SEBS as an Effective Nucleating Agent for Polystyrene Foams

Different percentages of an elastomeric phase of styrene-ethylene-butylene-styrene (SEBS) were added to a polystyrene (PS) matrix to evaluate its nucleating effect in PS foams. It has been demonstrated that a minimum quantity of SEBS produces a high nucleation effect on the cellular materials that a...

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Autores principales: Alberto Ballesteros, Ester Laguna-Gutiérrez, Miguel Ángel Rodríguez-Pérez
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Lenguaje:EN
Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/0980cae3390e48d380db748e22097c65
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spelling oai:doaj.org-article:0980cae3390e48d380db748e22097c652021-11-11T18:48:50ZSEBS as an Effective Nucleating Agent for Polystyrene Foams10.3390/polym132138362073-4360https://doaj.org/article/0980cae3390e48d380db748e22097c652021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/21/3836https://doaj.org/toc/2073-4360Different percentages of an elastomeric phase of styrene-ethylene-butylene-styrene (SEBS) were added to a polystyrene (PS) matrix to evaluate its nucleating effect in PS foams. It has been demonstrated that a minimum quantity of SEBS produces a high nucleation effect on the cellular materials that are produced. In particular, the results show that by adding 2% of SEBS, it is possible to reduce the cell size by 10 times while maintaining the density and open cell content of the foamed materials. The influence of this polymeric phase on the glass transition temperature (Tg) and the shear and extensional rheological properties has been studied to understand the foaming behavior. The results indicate a slight increase in the Tg and a decrease of the shear viscosity, extensional viscosity, and strain hardening coefficient as the percentage of SEBS increases. Consequently, an increase in the density and a deterioration of the cellular structure is detected for SEBS amounts higher than 3%.Alberto BallesterosEster Laguna-GutiérrezMiguel Ángel Rodríguez-PérezMDPI AGarticleorganic phasesSEBSrheologycellular materialspolystyreneOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3836, p 3836 (2021)
institution DOAJ
collection DOAJ
language EN
topic organic phases
SEBS
rheology
cellular materials
polystyrene
Organic chemistry
QD241-441
spellingShingle organic phases
SEBS
rheology
cellular materials
polystyrene
Organic chemistry
QD241-441
Alberto Ballesteros
Ester Laguna-Gutiérrez
Miguel Ángel Rodríguez-Pérez
SEBS as an Effective Nucleating Agent for Polystyrene Foams
description Different percentages of an elastomeric phase of styrene-ethylene-butylene-styrene (SEBS) were added to a polystyrene (PS) matrix to evaluate its nucleating effect in PS foams. It has been demonstrated that a minimum quantity of SEBS produces a high nucleation effect on the cellular materials that are produced. In particular, the results show that by adding 2% of SEBS, it is possible to reduce the cell size by 10 times while maintaining the density and open cell content of the foamed materials. The influence of this polymeric phase on the glass transition temperature (Tg) and the shear and extensional rheological properties has been studied to understand the foaming behavior. The results indicate a slight increase in the Tg and a decrease of the shear viscosity, extensional viscosity, and strain hardening coefficient as the percentage of SEBS increases. Consequently, an increase in the density and a deterioration of the cellular structure is detected for SEBS amounts higher than 3%.
format article
author Alberto Ballesteros
Ester Laguna-Gutiérrez
Miguel Ángel Rodríguez-Pérez
author_facet Alberto Ballesteros
Ester Laguna-Gutiérrez
Miguel Ángel Rodríguez-Pérez
author_sort Alberto Ballesteros
title SEBS as an Effective Nucleating Agent for Polystyrene Foams
title_short SEBS as an Effective Nucleating Agent for Polystyrene Foams
title_full SEBS as an Effective Nucleating Agent for Polystyrene Foams
title_fullStr SEBS as an Effective Nucleating Agent for Polystyrene Foams
title_full_unstemmed SEBS as an Effective Nucleating Agent for Polystyrene Foams
title_sort sebs as an effective nucleating agent for polystyrene foams
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/0980cae3390e48d380db748e22097c65
work_keys_str_mv AT albertoballesteros sebsasaneffectivenucleatingagentforpolystyrenefoams
AT esterlagunagutierrez sebsasaneffectivenucleatingagentforpolystyrenefoams
AT miguelangelrodriguezperez sebsasaneffectivenucleatingagentforpolystyrenefoams
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