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, Teknisk ytkemi

Swerea IVF AB

Krzysztof Kolman

Göteborgs universitet

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Teknisk ytkemi

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, Teknisk ytkemi

Romain Bordes

Chalmers, Kemi och kemiteknik, Tillämpad kemi

Carbohydrate Polymers

0144-8617 (ISSN)

Vol. 194 161-169

Ämneskategorier

Polymerkemi

Livsmedelsteknik

Polymerteknologi

DOI

10.1016/j.carbpol.2018.04.020