Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/47499
Title: Assessing the pH and DP of canvasses with NIR spectroscopy
Author: Oriola Folch, Marta
Keywords: Conservació i restauració d'obres d'art
Pintura sobre tela
Congressos
Conservation and restoration of art objects
Textile painting
Congresses
Issue Date: Nov-2013
Publisher: Universitat de Barcelona. Facultat de Belles Arts. Secció de Conservació-Restauració
Abstract: The canvas support in easel paintings is composed mainly of cellulose. One of the main degradation paths of cellulose is acid-catalysed hydrolysis, which means that in an acidic environment (low pH), its degradation proceeds at a faster rate (Strlič et al., 2005). The main effect of acid-catalysed hydrolysis is the breaking up of the polymer chains, measured by the “Degree of Polymerisation” (DP). The lowering of the DP value implies a lower mechanical strength of the textile (Scicolone, 1993), and thus this parameter can be used to monitor degradation. Knowing these two parameters can, therefore, be very informative regarding the condition of the canvas support.
Note: Podeu consultar el document complet a: http://hdl.handle.net/2445/47384
It is part of: Comunicació presentada a: La Recerca en Conservació des de la Visió del Conservador-Restaurador. Setmana de la Ciència, Barcelona, 7 i 8 de novembre de 2013, ISBN: 13:978-84-695-885-7, p. 79-87
Related resource: http://hdl.handle.net/2445/47384
URI: http://hdl.handle.net/2445/47499
Appears in Collections:Comunicacions a congressos (Grup de Recerca Conservació-Restauració del Patrimoni)
Comunicacions a congressos (Arts i Conservació-Restauració)

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