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Authors
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Kai Ke, Yu Wang, Kai Zhang, Yong Luo, Wei Yang, Bang-Hu Xie, Ming-Bo Yang
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Title
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Melt Viscoelasticity, Electrical Conductivity, and Crystallization of PVDF/MWCNT Composites: Effect of the Dispersion of MWCNTs
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Date
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25.07.2012
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Number
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10024
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Abstract
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The melt viscoelasticity, electrical conductivity, and crystallization of poly(vinylidene fluoride)/multiwalled carbon nanotubes (MWCNTs) composites prepared by melt blending with different shear effects were examined. Rheological characterization indicated that the incorporation of MWCNTs substantially affected the viscoelastic behavior of the composites. A visible rheological network of CNTs was detected in the composites with relatively high content of MWCNTs. The electrical conductivity of the composites differed substantially for the composites prepared with different shear effects because of the different dispersion states of the MWCNTs in the composites. The nonisothermal crystallization of the composites revealed that the samples prepared with high shear intensity and long shear time exhibited a higher crystallization peak temperature and crystallinity. Besides, the heterogeneous nucleation effect of the MWCNTs was found to be significantly dependent on the dispersion state, which dominated the crystallization even when the confinement effect of the nanotube network existed. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
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Publisher
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Journal of Applied Polymer Science
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Wikidata
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Citation
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Journal of Applied Polymer Science 125 (2012) E49-E57
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DOI
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https://doi.org/10.1002/app.36293
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Tags
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poly(vinylidene fluoride) multiwalled carbon nanotubes electrical properties rheological properties crystallization
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