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Preparation and characterization of in situ polymerized cyclic butylene terephthalate/graphene nanocomposites

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Abstract

Graphene-reinforced cyclic butylene terephthalate (CBT) matrix nanocomposites were prepared and characterized by mechanical and thermal methods. These nanocomposites containing different amounts of graphene (up to 5 wt%) were prepared by melt mixing with CBT that was polymerized in situ during a subsequent hot pressing. The nanocomposites and the neat polymerized CBT (pCBT) as reference material were subjected to differential scanning calorimetry, dynamical mechanical analysis, thermogravimetrical analysis, and heat conductivity measurements. The dispersion of the grapheme nanoplatelets was characterized by transmission electron microscopy. It was established that the partly exfoliated graphene worked as nucleating agent for crystallization, acted as very efficient reinforcing agent (the storage modulus at room temperature was increased by 39 and 89 % by incorporating 1- and 5-wt% graphene, respectively). Graphene incorporation markedly enhanced the heat conductivity but did not influence the TGA behavior, except the ash content, due to the not proper exfoliation except the ash content.

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Acknowledgements

The work reported has been developed in the framework of the projects “Talent care and cultivation in the scientific workshops of BME” (TÁMOP—4.2.2.B-10/1-2010-0009), and “Development of quality-oriented and harmonized R + D + I strategy and functional model at BME” (New Széchenyi Plan—Project ID: TÁMOP-4.2.1/B-09/1/KMR-2010-0002).

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Authors and Affiliations

  1. Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3. T/305, Budapest, 1111, Hungary

    Gábor Balogh, Sándor Hajba, József Karger-Kocsis & Tibor Czigány

  2. MTA–BME Research Group for Composite Science and Technology, Budapest University of Technology and Economics, Muegyetem rkp. 3., Budapest, 1111, Hungary

    József Karger-Kocsis & Tibor Czigány

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  1. Gábor Balogh
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  2. Sándor Hajba
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  3. József Karger-Kocsis
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  4. Tibor Czigány
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Correspondence to Tibor Czigány.

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Balogh, G., Hajba, S., Karger-Kocsis, J. et al. Preparation and characterization of in situ polymerized cyclic butylene terephthalate/graphene nanocomposites. J Mater Sci 48, 2530–2535 (2013). https://doi.org/10.1007/s10853-012-7042-6

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  • DOI: https://doi.org/10.1007/s10853-012-7042-6

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