A consolidação de têxteis celulósicos despolimerizados: observações e questões em aberto sobre o uso de nanocristais de celulose como consolidante

As with any other material, canvases made from cellulosic fibres employed by artists are susceptible to degradation, which leads to a loss of the textiles’ ability to support the paint layers. Lining has historically been the most prevalent method for addressing the issue. However, the potential risks associated with this approach have now been widely documented, prompting a shift towards exploring alternative solutions. Consolidation treatment constitutes a potential route to restore adequate mechanical properties to depolymerized canvases. In this regard, cellulose nanocrystals (CNC) represent a bio-based alternative to conventional conservation products which offers possible advantages in terms of compatibility, performances and sustainability. Building upon prior research, ongoing doctoral research aims to enhance understanding of key issues pertaining to CNC, which, despite their significance, have been insufficiently explored. These include aspects such as penetration into the substrate, adhesion to the canvas and methods for reducing the quantity of water required for its application.