The creep behaviour of poly(vinylidene fluoride)/"bud-branched" nanotubes nanocomposites

Tang, Xue-Gang, Hou, Meng, Zou, Jin, Truss, Rowan and Zhu, Zhonghua (2012) The creep behaviour of poly(vinylidene fluoride)/"bud-branched" nanotubes nanocomposites. Composites Science and Technology, 72 14: 1656-1664. doi:10.1016/j.compscitech.2012.06.025

Author Tang, Xue-Gang
Hou, Meng
Zou, Jin
Truss, Rowan
Zhu, Zhonghua
Title The creep behaviour of poly(vinylidene fluoride)/"bud-branched" nanotubes nanocomposites
Journal name Composites Science and Technology   Check publisher's open access policy
ISSN 0266-3538
Publication date 2012-09-01
Sub-type Article (original research)
DOI 10.1016/j.compscitech.2012.06.025
Volume 72
Issue 14
Start page 1656
End page 1664
Total pages 9
Place of publication Oxford, United Kingdom
Publisher Pergamon
Language eng
Abstract The creep behaviour of poly(vinylidene fluoride) (PVDF)/multiwall carbon nanotubes nanocomposites has been studied at different stress levels and temperatures. To fine-tune the ability to transfer stress from matrix to carbon nanotubes, bud-branched nanotubes, were fabricated. The PVDF showed improved creep resistance with the addition of carbon nanotubes. However, bud-branched nanotubes showed a modified stress-temperature-dependent creep resistance compared with carbon nanotubes. At low stress levels and low temperatures, bud-branched nanotubes showed better improvement of the creep resistance than that of virgin carbon nanotubes, while at high stress levels and high temperatures, the virgin carbon nanotubes presented better creep resistance than that of bud-branched nanotubes. DSC, WAXD, and FTIR were employed to characterise the crystalline structures and dynamic mechanical properties were characterised by DMA testing. The Burgers' model and the Findley power law were employed to model the creep behaviour, and both were found well describe the creep behaviour of PVDF and its nanocomposites. The relationship between the structures and properties was analysed based on the parameters of the modelling. The improved creep resistance for PVDF by the addition of nanotubes would benefit its application in thermoset composite welding technology.
Keyword Nanocomposites
Carbon nanotubes
Tensile creep
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

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