부산대학교 도서관

In recent years, there has been a lot of interest in nanocellulose (NC) and nanocellulose-reinforced composite materials research and development. This is due to its unique capabilities and features, including its ability to be renewable and sustainable, as well as its high mechanical strength, lightweight, and low cost. In this study, NC was extracted from Cajanus Cajan pea pods using an acid hydrolysis technique. Scanning Electron Microscopy (SEM) was used to characterise the isolated nanocellulose. NCs were incorporated in carboxylated acrylonitrile rubber (XNBR) by an eco-friendly latex stage mixing process combined with sonication to prepare XNBR/NC nanocomposites. The presence of H-bonds between XNBR and NC resulted in homogeneous NC dispersion inside the XNBR matrix as well as better interfacial adhesion. This resulted in a significant improvement in the tensile properties of XNBR/NC composites when compared to neat rubber. Tensile strength has been improved by 54% by incorporation of only 5 phr NC. High crosslinking between nitrile rubber chains and cellulose nanoparticles is also indicated by a decrease in solvent uptake. The influence of nanocellulose content on morphology and mechanical properties was also examined. Nanocellulose has a lot of potentials to replace traditional fillers like silica and carbon black in rubber reinforcement in the future. [ABSTRACT FROM AUTHOR]