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Materials 2014, 7(8), 5920-5933; https://doi.org/10.3390/ma7085920

Structural and Mechanical Characterization of Sustainable Composites Based on Recycled and Stabilized Fly Ash

1
Department of Industrial Engineering, University of Padova, via Marzolo 9, 35131 Padova, Italy
2
INSTM and Chemistry for Technologies Laboratory, University of Brescia, via Branze 38, 25123 Brescia, Italy
*
Author to whom correspondence should be addressed.
Received: 13 June 2014 / Revised: 3 August 2014 / Accepted: 5 August 2014 / Published: 18 August 2014
(This article belongs to the Special Issue Recycled Materials)
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Abstract

This paper reports the results on the use of an innovative inert, based on stabilized fly ash from municipal solid waste incineration as a filler for polypropylene. The starting material, which contains large quantities of leachable Pb and Zn, was stabilized by means of an innovative process using rice husk ash as a waste silica source, together with other fly ashes, such as coal fly ash and flue gas desulfurization residues. The use of all waste materials to obtain a new filler makes the proposed technology extremely sustainable and competitive. The new composites, obtained by using the stabilized material as a filler for polypropylene, were characterized and their mechanical properties were also investigated. A comparison with a traditional polypropylene and calcium carbonate based compound was also done. This research activity was realized in the frame of the COSMOS-RICE project, financed by the EU Commission. View Full-Text
Keywords: fly ash; rice husk ash; stabilization process; polypropylene; melt compounding fly ash; rice husk ash; stabilization process; polypropylene; melt compounding
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Besco, S.; Bosio, A.; Brisotto, M.; Depero, L.E.; Lorenzetti, A.; Bontempi, E.; Bonora, R.; Modesti, M. Structural and Mechanical Characterization of Sustainable Composites Based on Recycled and Stabilized Fly Ash. Materials 2014, 7, 5920-5933.

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