On the potential of using nanocellulose for consolidation of painting canvases
Artikel i vetenskaplig tidskrift, 2018
Nanocellulose has been recently proposed as a novel consolidant for historical papers. Its use for painting canvas consolidation, however, remains unexplored. Here, we show for the first time how different nanocelluloses, namely mechanically isolated cellulose nanofibrils (CNF), carboxymethylated cellulose nanofibrils (CCNF) and cellulose nanocrystals (CNC), act as a bio-based alternative to synthetic resins and other conventional canvas consolidants. Importantly, we demonstrate that compared to some traditional consolidants, all tested nanocelluloses provided reinforcement in the adequate elongation regime. CCNF showed the best consolidation per added weight; however, it had to be handled at very low solids content compared to other nanocelluloses, exposing canvases to larger water volumes. CNC reinforced the least per added weight but could be used in more concentrated suspensions, giving the strongest consolidation after an equivalent number of coatings. CNF performed between CNC and CCNF. All nanocelluloses showed better consolidation than lining with synthetic adhesive (Beva 371) and linen canvas in the elongation region of interest.
Conservation
Cellulose nanofibrils (CNF)
Consolidation
Restoration
Cellulose nanocrystals (CNC)
Easel paintings
Författare
Oleksandr Nechyporchuk
Chalmers, Kemi och kemiteknik, Tillämpad kemi
Swerea
Krzysztof Kolman
Göteborgs universitet
Chalmers, Kemi och kemiteknik, Tillämpad kemi
Alexandra Bridarolli
Birkbeck University of London
Marianne Odlyha
Birkbeck University of London
Laurent Bozec
Birkbeck University of London
Marta Oriola
Universitat de Barcelona
Gema Campo-Francés
Universitat de Barcelona
Michael Persson
Chalmers, Kemi och kemiteknik
Akzo Nobel - Pulp and Performance Chemicals
Krister Holmberg
Chalmers, Kemi och kemiteknik, Tillämpad kemi
Romain Bordes
Chalmers, Kemi och kemiteknik, Tillämpad kemi
Carbohydrate Polymers
0144-8617 (ISSN)
Vol. 194 161-169Ämneskategorier
Polymerkemi
Livsmedelsteknik
Polymerteknologi
DOI
10.1016/j.carbpol.2018.04.020