International. In a study conducted by Finnish researchers, the potential of cellulose nanofibrils with silylated functionality (CNF) as a reinforcing additive for polyurethane (PU) coatings of two water-based and solvent-based components was evaluated.
The growing demand for the use of sustainable materials in industrial applications has created a push to develop technologies that enable the use of biopolymers such as cellulose for the improvement of properties of commercial products.
The addition of silylated CNF improved the abrasion resistance, strength and elasticity of PU coatings. When silylated CNF was used as an additive, the adhesion of pu coatings was maintained. The oxygen penetration rate of the silylated CNF films was strongly influenced by the nature of the solvent. The silylated CNF showed potential as a booster additive even at low loads in two-component PU lacquers.
Source: Applied Polymer Science.
