Processing and Mode 1 Fracture Toughness of Carbon Fiber Composites Reinforced With Carbon Nanotubes
- Processing and Mode 1 Fracture Toughness of Carbon Fiber Composites Reinforced With Carbon Nanotubes
- 탄소나노튜브; 탄소섬유복합재; 나노복합재; 파괴인성; 복합재료; carbon nanotubes; carbon fiber composites; nanocomposites; fracture toughness
- Issue Date
- VOL 24, NO 5, 39-43
- For the last twenty years, nanocomposites composed of polymer matrices reinforced with carbon nanotubes
(CNTs) have been an active research area. Also, the polymeric nanocomposites reinforced with CNTs are being
investigated to be used matrices of carbon fiber composites. Carbon fiber composites have achieved advanced
properties in the direction of carbon fibers due to enhanced carbon fiber properties. However, the matrix
dominated properties need to be improved further to fully utilize the advanced carbon fiber properties. In
particular, delamination is a typical and critical reason for fracture of carbon fiber composites. Mode I fracture
toughness test which is also often called double cantilever beam (DCB) test shows the resistance to
delamination of carbon fiber composites and this test is performed on carbon fiber composite samples
incorporated with carbon nanotubes functionalized with various functional groups. The specimens with mat-like
CNT layers showed the increased fracture toughness by 10.6%.
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