Tribological properties of 100% cellulose nanofiber (CNF) molding under dry- and boundary lubrication-conditions at CNF/steel contacts

Abstract Cellulose nanofibers (CNFs), which are plant-derived materials, have recently garnered considerable attention owing to their excellent mechanical properties, such as low weight and high Young’s modulus. Novel methods for producing 100% CNF bulk structural materials been developed. However, the tribological properties of CNFs not investigated thus far although known comparable those some conventional materials. In this study, a novel biomass material, molding, were based on CNF/steel contacts under dry boundary lubrication conditions at various temperatures. The friction test results showed that coefficient wear volume molding increased with temperature tribopair dry-sliding conditions. Conversely, no significant dependence was observed upon pure polyalfaolefin. surface analytical revealed amorphization progressed worn surface, especially temperature. All suggested performance moldings strongly depends sliding conditions, process can affect its performance.