Nanoparticle Size Effect on Mechanical Properties of Carbon Fiber-reinforced Polymer Composites

탄소섬유강화 에폭시수지의 기계적 성질에 미치는 나노입자크기의 영향

Moon, Chang-Kwon;Kim, Bu-Ahn

  • Received : 2014.10.23
  • Accepted : 2015.04.16
  • Published : 2015.04.30


$TiO_2$ nanoparticles can be used to improve the performance of carbon fiber-reinforced epoxy resin composites. In this study, the effect of the size of $TiO_2$ nanoparticles on the mechanical properties of carbon fiber-reinforced epoxy resin composites was investigated. The size of the $TiO_2$ nanoparticles was easily controlled using heat treatment. The size of the $TiO_2$ 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 $TiO_2$ 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 $TiO_2$ powder and the diameter of the carbon fiber strongly affected the interfacial properties of all kinds of CFRP in this study.


Carbon fiber reinforced polymer composites;$TiO_2$ nanoparticle;Heat treatment;Tensile strength;Failure probability


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Supported by : 부경대학교