Composite Nanofibers of Polyacrylonitrile (PAN) and Amino-functionalized Carbon Nanotubes Electrospun from Dimethylsulfoxide

Abstract

In this study, DMSO was used as the solvent and PAN nanofibers reinforced with amino-functionalized multiwalled carbon nanotubes (f-MWCNTs) were successfully electrospun from the electrospinning solutions prepared in DMSO. The concentration of f-MWCNTs were changed as 1w% and 3w% with respect to the weight of PAN. The effect of f-MWCNT concentration on morphology, conductivity and mechanical properties of composite nanofibers were examined and compared to that of pure PAN nanofibers. Uniform composite nanofibers were obtained. The diameters of the nanofibers were in the range of 515-536 nm. The addition of the f-MWCNTs resulted in an increase in nanofiber diameter. 3w% f-MWCNT loaded PAN/f-MWCNT nanofiber showed the best mechanical properties. Conductivity increased with the incorporation of amino-functionalized multiwalled carbon nanotubes. 

Keywords

• carbon nanotubes, conductive, electrospinning, nanocomposite, nanofiber, polyacrylonitrile.

References

1. Ge JJ, Hou H, Li Q, Graham MJ, Greiner A, Reneker DH, Harris FW, Cheng SZD, Assembly of Well- Aligned Multiwalled Carbon Nanotubes in Confined Polyacrylonitrile Composite Nanofiber Sheets, J. Am. Chem. Soc. 2004, 126, 15754-15761. Electrospun
2. Coleman JN, Khan U, Gun’ko YK, Mechanical Reinforcement of Polymers Using Carbon Nanotubes, Adv. Mater., 2006, 18, 689–706.
3. Sahoo NG, Chenga HKF, Caia J, Li L, Chan SH, Zhaob J, Yub S, Improvement of mechanical and thermal properties of carbon nanotube composites through nanotube functionalization and processing methods, Mater. Chem. Phys., 2009, 117, 313-320.
4. Wang K, Gu M, Wang J, Qin C, Dai L, Functionalized
5. nanotube/polyacrylonitrile carbon
6. nanofibers: fabrication and properties, Polym. Adv.
7. Technol., 2012, 23, 262–271. composite
8. Hou H, Ge JJ, Zeng J, Li Q, Reneker DH, Greiner A, Cheng SZD, Electrospun Polyacrylonitrile Nanofibers Containing a High Concentration of Well-Aligned Multiwall Carbon Nanotubes, Chem Mater, 2005, 17, 967.

9. Xue P, KH Park, XM Tao, W Chen, XY Cheng, Electrically conductive yarns based on PVA/carbon nanotubes. Composite Structures, 2007, 78(2), 271- 277.
10. Wang CY, V Mottaghitalab, CO Too, GM Spinks, GG Wallace, Polyaniline and polyaniline-carbon nanotube composite fibres as battery materials in ionic liquid electrolyte, Journal of Power Sources, 2007, 163 (2), 1105-1109.
11. Hou H, Ge JJ, Zeng J, Li Q, Reneker DH, Greiner A, Cheng, SZD, Electrospun Polyacrylonitrile Nanofibers Containing a High Concentration of Well-Aligned Multiwall Carbon Nanotubes, Chem Mater, 2005, 17, 967.
12. Saeed K, Park SY, Preparation and characterization of multiwalled carbon nanotubes/polyacrylonitrile nanofibers, J Polym Res, 2010, 17, 535–540.
13. Chen IH, Wang CC, Chen CY, Fabrication and Structural Characterization of Polyacrylonitrile and Carbon Nanofibers, Containing Plasma-Modified Carbon Nanotubes by Electrospinning, J. Phys. Chem. C, 2010, 114, 13532–13539.
14. Umar Khan, Kevin Ryan, Werner J. Blau, Jonathan N. Coleman, The effect of solvent choice on the mechanical properties of carbon nanotube-polymer composites, Composites Science and Technology, 2007, 67, 3158-3167.
15. Gao C, Vo DC, Jin ZY, Li W, Armes SP, Macromolecules 2005, 38, 8634-8648.
16. Zhao Z, Yang Z, Hu Y, Li J, Fan X, Applied surface science, 2013, 25409, 6.
17. Heikkilä P, Harlin A, Electrospinning of polyacrylonitrile (PAN) solution: Effect of conductive additive and filler on the process, eXPRESS Polymer Letters, 2009, 3(7), 437–445.
18. Coleman JN, Khan U, Gun’ko YK, Mechanical Reinforcement of Polymers Using Carbon Nanotubes. Adv. Mater., 2006, 18, 689–706.
19. Sahoo NG, Chenga HKF, Caia J, Li L, Chan SH, Zhaob J, Yub S, Improvement of mechanical and thermal properties of carbon nanotube composites through nanotube functionalization and processing methods. Mater. Chem. Phys., 2009, 117, 313-320.
20. Almuhamed N, Khenoussi L, Schacher D, Adolphe HB, Measuring of Electrical Properties of MWNT- Reinforced PAN Nanocomposites, Journal of Nanomaterials, 2012, 1-7.
21. Saini P, Choudhary V, Electrostatic charge dissipation and electromagnetic interference shielding response of polyaniline based conducting fabrics, Indian Journal of Pure Applied Physics, 2013, 51, 112-117.