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Effect of single-walled carbon nanotubes on morphology and mechanical properties of NBR/PVC blends

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Abstract

Dynamically vulcanized thermoplastic elastomer based on Nitrile butadiene-rubber (NBR)/PVC with functionalized single-walled carbon nanotubes (f-SWNTs) and non-functionalized single-walled carbon nanotubes (SWNTs) were prepared using a brabender internal mixer. Effects of two types of SWNTs (functionalized and non-functionalized) on morphology and mechanical properties of NBR/PVC blends were studied. Results showed that the mechanical properties of NBR/PVC/SWNTs nanocomposites improved with the increasing of SWNTs content and in particular with the increase of f-SWNTs content. Moreover, the enhancement of mechanical properties of NBR/PVC blends reinforced with functionalized SWNT was higher than that of NBR/PVC blends with non-functionalized SWNT. Dispersion of SWNTs and morphology of NBR/PVC/SWNT nanocomposites were determined by scanning electron microscopy and transmission electron microscopy (TEM) techniques. TEM images illustrated that f-SWNTs were dispersed uniformly in NBR/PVC matrix while non-functionalized SWNTs showed much aggregation. Dynamic mechanical thermal analysis of NBR/PVC/SWNTs nanocomposites was also studied. The outcomes indicated that in the case of f-SWNTs, the intensity of tan δ peak was lower than that in the case of non-functionalized SWNTs. Meanwhile, the intensity of tan δ peak reduced when the content of f-SWNTs was increased.

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Acknowledgments

The authors acknowledge the Iran National Science Foundation (INSF) (Grant No. 85026/05) for supporting funds required for this study.

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Authors and Affiliations

  1. Iran polymer and Petrochemical Institute, P.O. Box 14965-115, Tehran, Iran

    Armin Hajibaba, Ghasem Naderi, Mirhamidreza Ghoreishy, Gholamreza Bakhshandeh & Mohammad Razavi Nouri

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  1. Armin Hajibaba
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  2. Ghasem Naderi
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  3. Mirhamidreza Ghoreishy
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  4. Gholamreza Bakhshandeh
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  5. Mohammad Razavi Nouri
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Correspondence to Ghasem Naderi.

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Hajibaba, A., Naderi, G., Ghoreishy, M. et al. Effect of single-walled carbon nanotubes on morphology and mechanical properties of NBR/PVC blends. Iran Polym J 21, 505–511 (2012). https://doi.org/10.1007/s13726-012-0055-9

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  • DOI: https://doi.org/10.1007/s13726-012-0055-9

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