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Title: Morphological and mechanical properties of carbon-nanotube-reinforced semicrystalline and amorphous polymer composites
Sponsor: European Union (EU)
Author's Homepage:
Keywords: Physics
multiwalled carbon nanotubes
Issue Date: 2002
Publisher: American Institute of Physics
Citation: Cadek M, Coleman JN, Barron V, Hedicke K, Blau WJ, Morphological and mechanical properties of carbon-nanotube-reinforced semicrystalline and amorphous polymer composites, Applied Physics Letters, 81, 27, 2002, 5123 - 5125
Series/Report no.: Applied Physics Letters;
Abstract: In this work, multiwalled carbon nanotubes were investigated as potential mechanical reinforcement agents in two hosts, polyvinyl alcohol (PVA) and poly(9-vinyl carbazole) (PVK). It was found that, by adding various concentrations of nanotubes, both Young’s modulus and hardness increased by factors of 1.8 and 1.6 at 1 wt % in PVA and 2.8 and 2.0 at 8 wt % in PVK, in reasonable agreement with the Halpin–Tsai theory. Furthermore, the presence of the nanotubes was found to nucleate crystallization of the PVA. This crystal growth is thought to enhance matrix-nanotube stress transfer. In addition, microscopy studies suggest extremely strong interfacial bonding in the PVA-based composite. This is manifested by the fracture of the polymer rather that the polymer-nanotube interface.
Description: PUBLISHED
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Appears in Collections:Physics (Scholarly Publications)

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