INVESTIGADORES
BARBOSA silvia Elena
artículos
Título:
PC-SAFT equation: a predictive tool to determine experimental conditions for polymer blend demixing
Autor/es:
MARTINI, RAQUEL EVANGELINA; CISMONDI, MARTÍN; BARBOSA, SILVIA ELENA; BRIGNOLE, ESTEBAN ALBERTO
Revista:
SEPARATION SCIENCE AND TECHNOLOGY
Editorial:
Taylor and Francis
Referencias:
Lugar: New York; Año: 2009 vol. 44 p. 2661 - 2680
ISSN:
0149-6395
Resumen:
The perturbed-chain statistical associating fluid theory equation of state (PC-SAFT) was applied to predict the phase behavior of polymer solutions in order to determine the pressure temperature region for the high molecular weight polymer blend separation by using n-alkanes at high pressure and high temperature. The polymer blends selected were physical blends of polyethylene (PE)/ polystyrene (PS) and polypropylene (PP) / PS. The miscibility and immiscibility region of each polymer in different alkanes (n-pentane, n-hexane and n-heptane) was studied and, from this analysis, the experimental conditions of the polymer blend demixing were predetermined. The results obtained were validated with experimental data indicating that the PC-SAFT equation is a good tool to predict experimental conditions for the processing windows of polymer blend separation.
