RT info:eu-repo/semantics/article
T1 SEBS as an effective nucleating agent for polystyrene foams
A1 Ballesteros Agudo, Alberto
A1 Laguna Gutiérrez, Ester
A1 Rodríguez Pérez, Miguel Ángel
K1 Procesos químicos
K1 Física de la materia condensada
K1 Organic phases
K1 SEBS
K1 Cellular materials
K1 Polystyrene
K1 Fases orgánicas
K1 Materiales celulares
K1 Poliestireno
K1 3303.03 Procesos Químicos
K1 2210 Química Física
AB 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%
PB MDPI
YR 2021
FD 2021
LK https://uvadoc.uva.es/handle/10324/59540
UL https://uvadoc.uva.es/handle/10324/59540
LA eng
NO Polymers, 2021, vol. 13, n. 21, 3836
NO Producción Científica
DS UVaDOC
RD 14-ago-2025