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Title: On the potential of using nanocellulose for consolidation of painting canvases
Author: Nechyporchuk, Oleksandr
Kolman, Krzysztof
Bridarolli, Alexandra
Odlyha, Marianne
Bozec, Laurent
Oriola Folch, Marta
Campo, Gema
Persson, Michael
Holmberg, Krister, 1946-
Bordes, Romain
Keywords: Nanocristalls
Conservació i restauració de pintures
Conservation and restoration of paintings
Issue Date: 9-Apr-2018
Publisher: Elsevier B.V.
Abstract: 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.
Note: Versió postprint del document publicat a:
It is part of: Carbohydrate Polymers, 2018, vol. 194, p. 161-169
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ISSN: 0144-8617
Appears in Collections:Articles publicats en revistes (Arts Conservació-Restauració)

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