Anoop Anand,K; Dr.Rani,Joseph(Cochin University of Science & Technology, December , 2006)
[+]
[-]
Abstract:
The current research investigates the possibility of using single walled carbon
nanotubes (SWNTs) as filler in polymers to impart several properties to the matrix
polymer. SWNTs in a polymer matrix like poly(ethylene terephthalate) induce
nucleation in its melt crystallization, provide effective reinforcement and impart
electrical conductivity. We adopt a simple melt compounding technique for
incorporating the nanotubes into the polymer matrix. For attaining a better dispersion
of the filler, an ultrasound assisted dissolution-evaporation method has also been tried.
The resulting enhancement in the materials properties indicates an improved
disentanglement of the nanotube ropes, which in turn provides effective matrix-filler
interaction. PET-SWNT nanocomposite fibers prepared through melt spinning
followed by subsequent drawing are also found to have significantly higher mechanical
propertiesas compared to pristine PET fiber.SWNTs also find applications in composites based on elastomers such as natural
rubber as they can impart electrical conductivity with simultaneous improvement in the
mechanical properties.
Description:
Department of Polymer Science and Rubber Technology,
Cochin University of Science and Technology