Degraded Paper: Stabilization and Strengthening Through Nanocellulose Application

Gmelch, Lucy Johanna; D'Emilio, Electra Maria Letizia; Geiger, Thomas; Effner, Carmen (2024). Degraded Paper: Stabilization and Strengthening Through Nanocellulose Application Journal of Paper Conservation, 25(1), pp. 6-19. Taylor & Francis 10.1080/18680860.2024.2317831

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Cellulose nanomaterials are a promising material for the stabilization of degraded paper, since their characteristics in composition, structure and physical properties are close to those of cellulose. Two types of nanocellulose were tested regarding their performance in stabilizing fragile papers: cellulose nanofibrils (CNF) and cellulose nanocrystals (CNC). The suspensions were applied to a pure cellulose paper and historical newspaper. The study included optical and microscopic characterization, determination of pH, conductivity, and rheology as well as measurement of changes in tensile strength after treatment. The results showed that the pH, as well as the optical and haptic properties, were not altered after treatment. A 50% increase in paper’s tensile strength is achieved with 3% CNC applied on the paper. In addition, fluorescence microscopy demonstrated that, due to their nanoscale dimension, the suspensions can reinforce the surface but also fully penetrate the paper matrix achieving therefore an overall stabilization.

Item Type:

Journal Article (Original Article)

Division/Institute:

Bern Academy of the Arts
Bern Academy of the Arts > Institute Materiality in Art and Culture

Name:

Gmelch, Lucy Johanna0000-0003-0076-2702;
D'Emilio, Electra Maria Letizia;
Geiger, Thomas and
Effner, Carmen

ISSN:

1868-0860

Publisher:

Taylor & Francis

Language:

English

Submitter:

Frau Lucy Johanna Gmelch

Date Deposited:

20 Mar 2024 15:20

Last Modified:

28 Apr 2024 01:39

Publisher DOI:

10.1080/18680860.2024.2317831

Uncontrolled Keywords:

Nanocellulose; cellulose nanomaterial; paper stabilization; mechanical testing; fluorescence microscopy

ARBOR DOI:

10.24451/arbor.21468

URI:

https://arbor.bfh.ch/id/eprint/21468

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