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Polycarbonate foams with tailor-made cellular structures by controlling the dissolution temperature in a two-step supercritical carbon dioxide foaming process

Autor
Gedler, G.; De Sousa Pais, M.; Velasco J.I.
Tipus d'activitat
Article en revista
Revista
The Journal of supercritical fluids
Data de publicació
2014-04
Volum
88
Pàgina inicial
66
Pàgina final
73
DOI
https://doi.org/10.1016/j.supflu.2014.01.013 Obrir en finestra nova
Projecte finançador
Tecnología de espumas poliméricas y materiales compuestos celulares multifuncionales - MAT2011-26410
Repositori
http://hdl.handle.net/2117/23160 Obrir en finestra nova
URL
http://www.sciencedirect.com/science/article/pii/S089684461400014X Obrir en finestra nova
Resum
Closed-cell polycarbonate foams were prepared using a two-step foaming process, which consisted of the initial dissolution of supercritical CO2(scCO2) into PC foaming precursors and their later expansion by heating using a double contact restriction method. The effects of the parameters of both CO2 dissolution and heating stages on the cellular structure characteristics as well as on the physical aging of PC in the obtained foams were investigated. A higher amount of CO2 was dissolved in PC with...
Citació
Gedler, G.; De Sousa Pais, M.; Velasco J.I. Polycarbonate foams with tailor-made cellular structures by controlling the dissolution temperature in a two-step supercritical carbon dioxide foaming process. "Journal of supercritical fluids", Abril 2014, vol. 88, p. 66-73.
Paraules clau
Physical aging, Polycarbonate foams, Supercritical carbon dioxide, Tailor-made cellular structure, Two-step foaming
Grup de recerca
POLY2 - Polyfunctional polymeric materials