Functionalized few-walled carbon nanotubes for mechanical reinforcement of polymeric composites.

Journal Article (Journal Article)

Compared to single-walled carbon nanotubes (SWNTs) and more defective multiwalled carbon nanotubes (MWNTs), the thin few-walled carbon nanotubes (FWNTs) are believed to have extraordinary mechanical properties. However, the enhancement of mechanical properties in FWNTs-polymer composites has remained elusive. In this study, free-standing carbon nanotubes (CNTs)/polymer composite films were fabricated with three types (SWNTs, FWNTs, MWNTs) of functionalized CNTs. The mechanical properties of composite films have been investigated. It is observed that the Young's modulus of composite films with only 0.2 wt % functionalized FWNTs shows a remarkable reinforcement value of dY/dV(f) = 1658 GPa, which is approximately 400 GPa higher than the highest value (dY/dV(f) = 1244 GPa) that was previously reported. In addition, the Young's modulus increased steadily with the increased concentration of FWNTs. The results indicated that FWNTs are practically the optimum reinforcing filler for the next generation of carbon nanotube-based composite materials.

Full Text

Duke Authors

Cited Authors

  • Hou, Y; Tang, J; Zhang, H; Qian, C; Feng, Y; Liu, J

Published Date

  • May 2009

Published In

Volume / Issue

  • 3 / 5

Start / End Page

  • 1057 - 1062

PubMed ID

  • 19397293

Electronic International Standard Serial Number (EISSN)

  • 1936-086X

International Standard Serial Number (ISSN)

  • 1936-0851

Digital Object Identifier (DOI)

  • 10.1021/nn9000512


  • eng