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Cellulose nanocrystal-based composite for restoration of lacunae on damaged documents and artworks on paper

2016; Elsevier BV; Volume: 23; Linguagem: Inglês

10.1016/j.culher.2016.10.007

1778-3674

Camilla H. M. Camargos, João Cura D’Ars de Figueiredo, Fabiano Vargas Pereira,

Building materials and conservation

Cellulose nanocrystals are a potentially useful material for filling lacunae of documents and artworks on paper due to their high chemical stability and specific physical properties. A composite of cellulose nanocrystals with propylene glycol, methylcellulose and CaCO3 was obtained. Chemical and physical properties of the cellulose nanocrystal-based were compared with properties of conventional papers. Samples were tested by pH measurements, infrared spectroscopy, stress–strain testing, and scanning electron microscopy. Crystallinity index of the cellulose nanocrystal-based composite paper was about three times higher than that of the reference conventional paper. Nanocrystal-based composite and conventional papers presented similarity in stress–strain behavior. The results make nanocrystal-based composite a candidate for reintegration of lacunae of documents and artworks on paper.