The objective of the project is to develop the industrial application of nanocellulose, particularly microfibrillated cellulose, in the domain of paints. Nanocellulose is considered as one of the 3 top priority materials in European bioeconomy. They come from the biomass and produce by the mechanical treatment of cellulose fibers. They can be used as stabilizer of colloidal particles or emulsifier in paint formulation.
Addition of MFC will allow the homogenous dispersion of the expensive fillers. This dispersion will allow lowering the final concentration of the filler in the paint suspension. Consequently, lower the price for the paint preparation while maintaining their quality.
This new solution for water based paints with MFC limits the release of volatile compounds, uses less chemicals, reduces pigment sedimentation, facilitates homogenous dispersion as well as rapid and uniform drying.
The concept of this project was derived from the patent WO 2014033409. In this patent, it was confirmed that to attain the equivalent paper opacity of 82 %, conventional coating needs 9 % of TiO2 while only 2.8 % of TiO2 was required when coated with MFC. The results obtained were cost efficient and feasible at industrial scale.
The renewed formulation provides similar properties as traditional paints but with lower amount of fillers. Main application is enhanced monolayer opacifying decorative paints.