Strong dependence of mechanical properties on fiber diameter for polymer-nanotube composite fibers: differentiating defect from orientation effects.

@article{Young2010StrongDO,
  title={Strong dependence of mechanical properties on fiber diameter for polymer-nanotube composite fibers: differentiating defect from orientation effects.},
  author={Karen G Young and Fiona M. Blighe and Juan J. Vilatela and Alan H. Windle and Ian A Kinloch and Libo Deng and Robert J Young and Jonathan N Coleman},
  journal={ACS nano},
  year={2010},
  volume={4 11},
  pages={6989-97}
}
We have prepared polyvinylalcohol-SWNT fibers with diameters from ∼1 to 15 μm by coagulation spinning. When normalized to nanotube volume fraction, V(f), both fiber modulus, Y, and strength, σ(B), scale strongly with fiber diameter, D: Y/V(f) ∝ D(-1.55) and σ(B)/V(f) ∝ D(-1.75). We show that much of this dependence is attributable to correlation between V(f… CONTINUE READING