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Properties of multi-walled carbon nanotube reinforced epoxy composites fabricated by using sonication and shear mixing
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  • Journal title : Carbon letters
  • Volume 15, Issue 4,  2014, pp.255-261
  • Publisher : Korean Carbon Society
  • DOI : 10.5714/CL.2014.15.4.255
 Title & Authors
Properties of multi-walled carbon nanotube reinforced epoxy composites fabricated by using sonication and shear mixing
Koo, Min Ye; Shin, Hon Chung; Kim, Won-Seok; Lee, Gyo Woo;
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Multi-walled carbon nanotube reinforced epoxy composites were fabricated using shear mixing and sonication. The mechanical, viscoelastic, thermal, and electrical properties of the fabricated specimens were measured and evaluated. From the images and the results of the measurements of tensile strengths, the specimens having 0.6 wt% nanotube content showed better dispersion and higher strength than those of the other specimens. The Young`s moduli of the specimens increased as the nanotube filler content was increased in the matrix. As the concentrations of nanotubes filler were increased in the composite specimens, their storage and loss moduli also tended to increase. The specimen having a nanotube filler content of 0.6 wt% showed higher thermal conductivity than that of the other specimens. On the other hand, in the measurement of thermal expansion, specimens having 0.4 and 0.6 wt% filler contents showed a lower value than that of the other specimens. The electrical conductivities also increased with increasing content of nanotube filler. Based on the measured and evaluated properties of the composites, it is believed that the simple and efficient fabrication process used in this study was sufficient to obtain improved properties in the specimens.
carbon nanotube composite;sonication;shear mixing;mechanical property;thermal property;
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