Determination of Glass Transition Temperature for Polyester / Graphene Oxide and Polyester / Graphite Composite by TMA and DSC
Keywords:
polyester, graphene oxide, graphite, Tg, TMA, DSC, DMA
Abstract
The influences of oxide grapheme and grapheme in thermosetting polymer composites are complex and they very much depend on the chemical bonds formed between the additives and the polymer matrix. This study has used polyester as polymeric matrix and oxide grapheme and graphite as additives. Determination of glass transition temperature (Tg) is important for practical uses of polyester composites due to the changes of characteristics triggered by transition, thus the polymer passes from elastic to plastic state. In order to determine the Tg we used TMA, DSC, DMA tests. The differences in determined Tg values for the same composite are due to different measurements as resulted from each test.
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References
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[5]. S. Chandrasekaran, G. Faiella, L. A. S. A. Prado, F. Tölle, R. Mülhaupt, K. Schulte, Thermally reduced graphene oxide acting as a trap for multiwall carbon nanotubes in bi-filler epoxy composites, Composites, Part A, Vol. 49, p. 51-57, 2013.
[6]. D. R. Bortz, E. G. Heras, I. Martin-Gullon, Impressive fatigue life and fracture toughness improvements in graphene oxide/epoxy composites, Macromolecules, Vol. 45(1), p. 238-245, 2012.
[7]. M. Fang, Z. Zhang, J. Li, H. Zhang, H. Lu, Y. Yang, Constructing hierarchically structured interphases for strong and tough epoxy nanocomposites by aminerich graphene surfaces, Journal of Material Chemistry, Vol. 20(43), p. 9635-43, 2010.
[8]. C. Bao, Y. Guo, L. Song, Y. Kan, X. Qian, Y. Hu, In situ preparation of functionalized graphene oxide/epoxy nanocomposites with effective reinforcements, Journal of Material Chemistry, Vol. 21(35), p. 13290–13298, 2011.
[9]. M. Cano, U. Khan, T. Sainsbury, A. O’Neill, Z. Wang, I. T. McGovern, K. M. Wolfgang, Improving the mechanical properties of graphene oxide based materials by covalent attachment of polymer chains, Carbon, Vol. 52, p. 363-371, 2013.
[10]. M. I. Ojovan, Configurons: Thermodynamics parameters and symmetry changes at glass transition, Entropy, Vol. 10, p 334-364, 2008.
[11]. M. Erber, A. Khalyavina, K.-J. Eichhorn, B. I. Voit Leibniz, Variations in the glass transition temperature of polyester with special architectures confined in thin film, Polymer, Vol. 51, p. 129-135, 2010.
[12]. Y. Wan, L. Gong, L. Tang, L. Wu, J. Jiang, Mechanical properties of epoxy composites filled with silane-functionalized graphene oxide, Composites A, Vol. 64, p. 79-89, 2014.
[13]. Bindu S. T. K., A. B. Nair, B. T. Abraham, P. M. S. Beegum, E. T. Thachil, Mechanical properties of epoxy composites filled with silane-functionalized graphene oxide, Polymer Vol. 55, p. 3614-3627, 2014.
Published
2015-06-15
How to Cite
1.
BAȘTIUREA M, BAȘTIUREA MS, ANDREI G, MURARESCU M, DUMITRU D. Determination of Glass Transition Temperature for Polyester / Graphene Oxide and Polyester / Graphite Composite by TMA and DSC. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Jun.2015 [cited 28Nov.2024];38(2):32-6. Available from: https://gup.ugal.ro/ugaljournals/index.php/mms/article/view/1332
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