Development Of The Fabrication Process Of
Carbon Nanotube Reinforced Polylactide
(PLA) Nanofiber And Evaluation Of Its
Mechanical Properties
Author(s)
K. Tanaka, M. Hashimoto, M. Nagura & T. Katayama
Abstract
Due to the high surface area to volume ratio, nanofibers are expected to be used
for a wide range of applications such as tissue engineering, filter media and
reinforcements in composites. The electrospinning technique is a simple method
for the fabrication of nanofibers. In this technique, a polymer solution is blown
out from a needle hole, while an electric field is applied between a polymer
solution and a target. During the electrospinning process, the solvent evaporates
and polymer nanofibers are fabricated on the target.
To add special functions to nanofibers, functional particle such as calcium
carbonate and TiO2 were reported to be used as nano-fillers for nanofibers.
Carbon nanotube (CNT), which has excellent mechanical, electrical, chemical
resistance and electromagnetic properties, was reported to be reinforcement for
bulk polymer resin and CNT is anticipated to be a reinforcing nano-fillers.
However, due to challenges such as manipulating extremely small fibers,
preparing samples of single-nanofiber and sourcing for accurate and sensitive
force transducer, it is difficult to evaluate the mechanical properties of CNT
reinforced nanofibers.
In this study, CNT/PLA nanofibers were fabricated by the electrospinning
method using the electrical potentials difference between two Cu strips of target
and the mechanical properties of CNT/PLA nanofiber were evaluated. The
morphology of the composite fibers and the dispersion of the CNT within the
fibers were observed using transmission electron microscopy (TEM). The tensile
test of PLA and CNT/PLA single nanofiber were successfully conducted using a
nano-scale tensile testing machine. The tensile strength of PLA and CNT
Keywords
electrospinning, nanofiber, poly lactic acid (PLA), carbon nanotube (CNT), tensile test
Related Book
Other papers in this volume
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