Original title: Preparation and Characterization of Micro- and Nanocellular Polystyrene Foams
Authors: Nistor, A. ; Rygl, A. ; Sajfrtová, Marie ; Bobák, M. ; Kosek, J.
Document type: Papers
Conference/Event: International Congress of Chemical and Process Engineering /21./ - CHISA 2014 and Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction /17./ - PRES 2014, Prague (CZ), 2014-08-23 / 2014-08-27
Year: 2014
Language: eng
Abstract: Polystyrene foams with closed cells were prepared using supercritical CO2 as the blowing agent. On the other hand, polystyrene foams with open cells were prepared via temperature induced phase separation, namely by the spinodal decomposition. In both cases, we systematically studied the influence of the foaming conditions (focusing especially on nucleation and coalescence) on the final foam morphology. The influence of solvent residua on foaming was discussed in. By carefully optimizing the foaming conditions we prepared foams with an average cell size below 1 μm. Furthermore, we studied the heat insulation properties of the prepared foams and compared them with the results of heat transport simulation in foams.
Keywords: nanocellar polystyrene foams; solvent residua; spinodal decomposition
Host item entry: Final program, ISBN 978-80-02-02555-9
Rights: This work is protected under the Copyright Act No. 121/2000 Coll.

Institution: Institute of Chemical Process Fundamentals AS ČR (web)
Original record: http://hdl.handle.net/11104/0236017

Permalink: http://www.nusl.cz/ntk/nusl-175027


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