Solid-state foaming is a relatively new process for producing closed-cell thermoset foams starting from powders. In this study, the possibility of introducing nanoclay into epoxy foams by solid-state foaming was investigated. The nanoclay was found to affect the foaming efficiency and the foam density; even if large nanoclay aggregates are present in the foams, for a small range of filler content (2.5—3 wt%), the mechanical properties are positively influenced, as shown by specific compressive toughness which attains a maximum value. Electron microscope observations provided important information on the dependence of the cell size on the filler percentage, and the presence of a critical size (about 5 μm) of nanoclay aggregates, below which they are coherent with the matrix.

Mazzola, L., Bemporad, E., Squeo, E.a., Trovalusci, F., Tagliaferri, V. (2011). Filler-matrix interaction in solid state foaming of composite foams. JOURNAL OF CELLULAR PLASTICS, 47 [10.1177/0021955X10382955].

Filler-matrix interaction in solid state foaming of composite foams

TROVALUSCI, FEDERICA;TAGLIAFERRI, VINCENZO
2011-01-01

Abstract

Solid-state foaming is a relatively new process for producing closed-cell thermoset foams starting from powders. In this study, the possibility of introducing nanoclay into epoxy foams by solid-state foaming was investigated. The nanoclay was found to affect the foaming efficiency and the foam density; even if large nanoclay aggregates are present in the foams, for a small range of filler content (2.5—3 wt%), the mechanical properties are positively influenced, as shown by specific compressive toughness which attains a maximum value. Electron microscope observations provided important information on the dependence of the cell size on the filler percentage, and the presence of a critical size (about 5 μm) of nanoclay aggregates, below which they are coherent with the matrix.
2011
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore ING-IND/16 - TECNOLOGIE E SISTEMI DI LAVORAZIONE
English
epoxy foam, solid state foaming, thermosets, clsed cell foams
Mazzola, L., Bemporad, E., Squeo, E.a., Trovalusci, F., Tagliaferri, V. (2011). Filler-matrix interaction in solid state foaming of composite foams. JOURNAL OF CELLULAR PLASTICS, 47 [10.1177/0021955X10382955].
Mazzola, L; Bemporad, E; Squeo, Ea; Trovalusci, F; Tagliaferri, V
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/52764
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