Nanoparticle Size Effect on Mechanical Properties of Carbon Fiber-reinforced Polymer Composites Moon, Chang-Kwon; Kim, Bu-Ahn;
nanoparticles can be used to improve the performance of carbon fiber-reinforced epoxy resin composites. In this study, the effect of the size of nanoparticles on the mechanical properties of carbon fiber-reinforced epoxy resin composites was investigated. The size of the nanoparticles was easily controlled using heat treatment. The size of the nanoparticles for this study were20nm, 100nm, and 200nm. Three types of carbon fibers with different diameters were also used in this study. The carbon fiber-reinforced epoxy resin composites with 20-nm powder showed the highest tensile strength compared to the other types of CFRP, regardless of the fiber maker or fiber diameter. The size of the powder and the diameter of the carbon fiber strongly affected the interfacial properties of all kinds of CFRP in this study.