Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/19544
Title: Enhanced mechanical properties and morphological characterizations of poly(vinyl alcohol)-carbon nanotube composite films
Authors: Chen, W
Tao, X 
Xue, P
Cheng, X
Keywords: Composite films
Multiwall carbon nanotube (MWNT)
Poly(vinyl alcohol) (PVA)
Issue Date: 2005
Publisher: North-Holland
Source: Applied surface science, 2005, v. 252, no. 5, p. 1404-1409 How to cite?
Journal: Applied surface science 
Abstract: Tensile tests were carried out on free-standing composite films of poly(vinyl alcohol) (PVA) and multiwall carbon nanotubes (MWNTs) for different loading levels. Results show that overall mechanical properties of the composite were greatly improved as compared to the neat PVA film. For PVA-based materials at significant high loading level such as 9.1 wt.% MWNTs, considerable increases in Young's modulus, tensile strength and toughness by factors of 4.5, 2.7 and 4.1, respectively, were achieved. Raman, SEM, TEM, and DSC techniques were used to evaluate the PVA/MWNTs composite system. Strong acid-modification of the pristine MWNTs and the subsequent ultrasonication processing allowed good distribution of the nanotubes in the matrix. SEM together with DSC result shows apparent good wetting of the nanotubes by the PVA matrix, which are supportive of good interfacial bonding between the modified carbon nanotubes and the hosting polymer matrix.
URI: http://hdl.handle.net/10397/19544
ISSN: 0169-4332
EISSN: 1873-5584
DOI: 10.1016/j.apsusc.2005.02.138
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