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Visualization of monomer and polymer inside porous stones by using X-ray tomography

Brunetti, Antonio and Princi, Elisabetta and Vicini, Silvia and Pincin, Silvia and Bidali, Simone and Mariani, Alberto (2004) Visualization of monomer and polymer inside porous stones by using X-ray tomography. Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, Vol. 222 (1-2), p. 235-241. ISSN 0168-583X. Article.

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DOI: 10.1016/j.nimb.2003.12.079

Abstract

Estimate of sorption of liquid materials inside porous stones is an important parameter in industrial material testing and cultural heritage conservation. In the latter case, a suitable polymer can be used for both consolidation and conservation, it being applied either in the final form or as its parent monomer, which is subsequently allowed to polymerize in situ by the classical method or by frontal polymerization. However, the sorption of such materials through the stone is often difficult because of their viscosity and/or stone porosity. For this reason, the amount of monomer (or polymer) is a parameter of great interest in order to determine the extent of protection reachable by the treatment. In this paper a new methodology based on X-ray tomography is presented. The methodology makes use of a contrast agent added to the monomer that does not interact with its propagation inside the stone and allows to increase the absorption coefficient and so to observe the monomer inside the sample, which is finally frontally polymerized.

Item Type:Article
ID Code:4699
Status:Published
Refereed:Yes
Uncontrolled Keywords:Cultural heritage, monomer, tomography, frontal polymerization, consolidation, protection, stones
Subjects:Area 02 - Scienze fisiche > FIS/07 Fisica applicata (a beni culturali, ambientali, biologia e medicina)
Area 03 - Scienze chimiche > CHIM/04 Chimica industriale
Divisions:002 Altri enti e centri di ricerca del Nord Sardegna > INSTM-Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali, Unità di ricerca di Sassari
001 Università di Sassari > 01 Dipartimenti > Chimica
001 Università di Sassari > 03 Istituti > Matematica e fisica
Publisher:North Holland / Elsevier Science
ISSN:0168-583X
Copyright Holders:© 2003 Elsevier
Deposited On:18 Oct 2010 13:14

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