logotype

Chemical semi-IPN hydrogels for the removal of adhesives from canvas paintings

Research Area: Uncategorized Year: 2014
Type of Publication: Article
Authors:
Journal: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING Volume: 114
Number: 3 Pages: 705-710
Month: March
ISSN: 0947-8396
Abstract:
Semi-interpenetrating (IPN) poly (2-hydroxyethyl methacrylate)/polyvinylpyrrolidone hydrogels were synthesized and used for the removal of adhesives from the back of canvas paintings. The high water retention capability and the specific mechanical properties of these gels allow the safe cleaning of water-sensitive artifacts using water-based detergent systems. The cleaning action is limited to the contact area and layer-by-layer removal is achieved while avoiding water spreading and absorption within water-sensitive substrates, which could lead, for example, to paint detachment. The use of these chemical gels also avoids leaving residues over the treated surface because the gel network is formed by covalent bonds that provide high mechanical strength. In this contribution, the physicochemical characterization of semi-IPN chemical hydrogels is reported. The successful application of an o/w microemulsion confined in the hydrogel for the removal of adhesives from linen canvas is also illustrated.
[ Back ]
Copyright © CSGI 2012 - Credits - Cookie Policy - Privacy - Consorzio per lo Sviluppo dei Sistemi a Grande Interfase, via della Lastruccia 3, 50019, Sesto Fiorentino, Italy