Ionic Liquid Assisted Dispersion of Reduced Graphene Oxide in Epoxy Composites with Improved Mechanical Properties

Abstract:

Graphene nanosheets were prepared by chemical reduction of the exfoliated graphite oxide using sodium borohydride (NaBH₄). The graphene/epoxy composites were separately fabricated in the absence or presence of imidazolium-based ionic liquids, and their dynamic thermomechanical and tensile properties were studied. TEM examinations show that graphene sheets are well dispersed in the epoxy resin and have strong interface adhesion with the matrix due to the π-π and/or cation-π interactions between graphene and imidazolium ions. The composite fabricated by assistance of ionic liquids shows larger increases in Youngs modulus, tensile strength, storage modulus and glass transition temperature compared to the composite without using ionic liquids. This work provides a method for the fabrication of multifunctional graphene-based polymer composites.

• Periodical: Advanced Materials Research (Volume 738)
• Pages: 56-60
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.738.56
• Online since: August 2013
• Authors: Yue E Liu, Cheng En He, Ren Gui Peng, Wei Tang, Ying Kui Yang
• Keywords: Composite, Dispersion, Epoxy, Graphene (GR), Ionic Liquid (IL), Mechanical Property

References

[1] M.J. Allen, V.C. Tung and R.B. Kaner: Chem. Rev. Vol. 110 (2010), p.132.

[2] H. Kim, A.A. Abdala and C.W. Macosko: Macromolecules Vol. 43 (2010), p.6515.

[3] T. Kuilla, S. Bhadra, D. Yao, N.H. Kim, S. Bose and J.H. Lee: Prog. Polym. Sci. Vol. 35 (2010), p.1350.

[4] J.R. Potts, D.R. Dreyer, C.W. Bielawski and R.S. Ruoff: Polymer Vol. 52 (2011), p.5.

[5] R. Verdejo, M.M. Bernal, L.J. Romasanta and M.A. Lopez-Manchado, J. Mater. Chem. Vol. 21 (2011), p.3301.

DOI: 10.1039/c0jm02708a

[6] Y.K. Yang, C.E. He, R.G. Peng, A. Baji, X.S. Du, Y.L. Huang, X.L. Xie and Y. -W. Mai: J. Mater. Chem. Vol. 22 (2012), p.5666.

[7] Y.K. Yang, L.J. Yu, R.G. Peng, Y.L. Huang, C.E. He, H.Y. Liu, X.B. Wang, X.L. Xie and Y. -W. Mai: Nanotechnology Vol. 23 (2012), p.225701.

[8] Y.K. Yang, C.E. He, W.J. He, L.J. Yu, R.G. Peng, X.L. Xie, X.B. Wang and Y. -W. Mai: J. Nanopart. Res. Vol. 13 (2011), p.5571.

[9] Y. Liang, D. Wu, X. Feng and K. Müllen: Adv. Mater. Vol. 21 (2009), p.1679.

[10] K.A. Mkhoyan, A.W. Contryman, J. Silcox, D.A. Stewart, G. Eda, C. Mattevi, S. Miller and M. Chhowalla: Nano Lett. Vol. 9 (2009), p.1058.

DOI: 10.1021/nl8034256

[11] H. -K. Jeong, Y.P. Lee, R.J.W.E. Lahaye, M. -H. Park, K.H. An, I.J. Kim, C. -W. Yang, C.Y. Park, R.S. Ruoff and Y.H. Lee: J. Am. Chem. Soc. Vol. 130 (2008), p.1362.

[12] H. -K. Jeong, L. Colakerol, M.H. Jin, P. -A. Glans, K.E. Smith and Y.H. Lee: Chem. Phys. Lett. Vol. 460 (2008), p.499.

[13] T. Fukushima, A. Kosaka, Y. Ishimura, T. Yamamoto, T. Takigawa, N. Ishii and T. Aida: Science Vol. 300 (2003), p. (2072).

DOI: 10.1126/science.1082289

[14] M. Abdalla, D. Dean, D. Adibempe, E. Nyairo, P. Robinson and G. Thompson: Polymer 48 (2007), p.5662.

DOI: 10.1016/j.polymer.2007.06.073

[15] Y.S. Song and J.R. Youn: Carbon Vol. 43 (2005), p.1378.

[16] J. Zhu, H.Q. Peng, F. Rodriguez-Macias, J.L. Margrave, V.N. Khabashesku, A.M. Imam, K. Lozano and E.V. Barrera: Adv. Funct. Mater. Vol. 14 (2004), p.643.

DOI: 10.1002/adfm.200305162

[17] T. Ramanathan, A.A. Abdala, S. Stankovich, D.A. Dikin, M. Herrera-Alonso, R.D. Piner, D.H. Adamson, H.C. Schniepp, X. Chen, R.S. Ruoff, S.T. Nguyen, I.A. Aksay, R.K. Prud'homme and L.C. Brinson: Nat. Nanotechnol. Vol. 3 (2008), p.327.

DOI: 10.1038/nnano.2008.96

[18] Z. Wang, X.T. Yang, Q. Wang, H. T. Hahn, S. Lee, K. -H. Lee and Z. Guo: Int. J. Smart Nano Mater. Vol. 2 (2011), p.176.

[19] M.P. Scott, M. Rahman and C.S. Braze: Eur. Polym. J. Vol. 39 (2003), p. (1947).