Hybrids composed of nanocellulose (NC) and optically active components hold promise in several materials applications, including product safety, and in functional coatings and inks. For coatings and inks, the shear thinning, film forming, and stabilizing properties of NC are attractive. NC films are generally smooth and transparent, making them good options as a matrix for optically active components. Here, we describe the combination of NC and metal oxides in two different systems. In the first, NC is formulated together with colloidal silica nanoparticles (NPs) and ceria NPs for anti-scratch and UV-screening coatings. In the second, phosphorescent NC-based inks are made by the addition of Eu+3 doped Y2O3 NPs. Successful formulation relied on consideration of NC and NP colloidal stability in the different conditions associated with each system.

Nanocellulose-based hybrid materials for optical applications

2019 Spring National Meeting

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