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Journal of Materials Science
Published in: Journal of Materials Science 6/2015

01-03-2015 | Original Paper

Synergistic effect of vegetable protein and silicon addition on geopolymeric foams properties

Authors: Letizia Verdolotti, Barbara Liguori, Ilaria Capasso, Agostino Errico, Domenico Caputo, Marino Lavorgna, Salvatore Iannace

Published in: Journal of Materials Science | Issue 6/2015

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Abstract

Organic–inorganic hybrid foams based on an alkali alumino-silicate matrix were prepared using different foaming methods. Firstly, silico-aluminate inorganic matrix, activated through a sodium silicate solution, was prepared at room temperature. The obtained viscous paste was expanded by means of silicon metal redox reaction in alkaline media in combination with protein-assisted foaming. The foamed systems were hardened at defined temperature and time and then characterized by FTIR, scanning electron microscopy, and compression tests. The high temperature behavior and specific surface area were also evaluated. The experimental findings highlighted that the combination of silicon metal and vegetable protein allowed tailoring hybrid foams with enhanced properties: good yield strength and thermal resistance typical of geopolymeric foam with a ductile behavior (toughness) and low density typical of organic foams.
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Metadata
Title
Synergistic effect of vegetable protein and silicon addition on geopolymeric foams properties
Authors
Letizia Verdolotti
Barbara Liguori
Ilaria Capasso
Agostino Errico
Domenico Caputo
Marino Lavorgna
Salvatore Iannace
Publication date
01-03-2015
Publisher
Springer US
Published in
Journal of Materials Science / Issue 6/2015
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-014-8801-3

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