Processing - Interlaminar Shear Strength Relationship of Carbon Fiber Composites Reinforced with Carbon Nanotubes
- Processing - Interlaminar Shear Strength Relationship of Carbon Fiber Composites Reinforced with Carbon Nanotubes
- 탄소나노튜브; 탄소섬유복합재; 복합재료; 층간전단강도; 진공 수지 충전 공정; carbon nanotubes; carbon fiber composites; interlaminar shear strength; vacuum assisted resin transfer molding
- Issue Date
- VOL 24, NO 5, 34-38
- Carbon nanotubes (CNTs) have been widely investigated as reinforcements of CNT/polymer nanocomposites
to enhance mechanical and electrical properties of polymer matrices since their discovery in the early 90’s.
Furthermore, the number of studies about incorporating CNTs into carbon fiber reinforced plastics (CFRP) to
reinforce their polymer matrices is increasing recently. In this study, single-walled carbon nanotubes (SWNT)
were dispersed in epoxy with 0.2 wt.% and 0.5 wt.%. Then, the SWNT/epoxy mixtures were processed to
carbon fiber composites by a vacuum assisted resin transfer molding (VARTM) and a wet lay up method. The
processed composite samples were tested for the interlaminar shear strength (ILSS). The relationship between
the interlaminar shear strengths and processing, and the reinforcement mechanism of carbon nanotubes were
investigated. CNT/epoxy nanocomposite specimens showed the increased tensile properties. However, the ILSS
of carbon fiber composites was not enhanced by reinforcing the matrix with CNTs because of processing issues
caused by increased viscosity of the matrix due to addition of CNTs particularly for a VARTM method.
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