Cellulose nanocomposites based on silane reinforced 3-butynoate-substituted zirconium-oxocluster copolymers: Mechanical, thermal and hydrophobic properties

Silica based cellulose nanocomposites obtained from (3-mercaptopropyl)trimethoxysilane or vinyltrimethoxysilane and 3-butynoate-substituted zirconium-oxoclusters were prepared and their surface morphology, wettability, and thermo-mechanical properties were studied. The composites showed a hydrophobic surface, high strength, and resistance to thermal degradation and aging; in comparison to the untreated paper they required a higher temperature to activate combustion and generated less heat during all thermal processes.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Silica based cellulose nanocomposites reinforced with zirconium-oxoclusters. ► Copolymers as a reinforcing phase for paper: improved mechanical properties. ► Higher combustion temperature and less self-ignition. ► Hydrophobic surface. ► Preservation of historical documents.