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.

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► 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► Preservation of historical documents.