Journal of Polymer Research

, Volume 18, Issue 6, pp 2055–2060 | Cite as

Effect of spinning conditions on the mechanical properties of PA6/MWNTs nanofiber filaments

  • Yang Liu
  • Jie Li
  • Zhi-juan Pan
Original Paper


Carbon nanotube (CNT ) reinforced composite materials is a hot research issue now , but CNT/polymer composite nano-scale fibers still cannot be obtained readily, not mention to successfully prepare continuous CNTs/polymer composite nano-scale fiber filaments manufactured by electrospinning. In this paper, continuous filaments constructed of nano-scale PA6/MWNTs fibers in single-axis orientation were obtained by an improved wet-electrospinning technique. The effects of the concentrations of MWNTs, spinning speed and post-drawing on the mechanical properties of PA6/MWNTs nanofiber filaments were studied. The results show that when the concentrations of MWNTs is below 0.8 wt%, the increase of MWNTs content enhances the Young’s modules and breaking stress but reduces the breaking strain, while the breaking stress decreases when the MWNTs concentration exceeds 0.8 wt%. The Young’s modules and breaking stress increased as the spinning speed raised at the range of 1.8–9.0 m/min, but declined when the speed exceeded 9.0 m/min. The mechanical properties of the as-spun filaments can be improved by either dry or wet post-drawing, and the breaking stress of the wet post-drawn filaments was improved 2.64 times while that of the dry post-drawn filaments 2.28 times.


Electrospinning MWNTs Nanofiber Drawing Mechanical properties 



Financial support for this work was provided by the Science and Technology Project of Jiangsu Province (BK2008151) and Creative Research Project for Graduate Students of Jiangsu Province(CX09B_026Z) and the Priority Academic Program Development of Jiangsu Higher Education Institutions.


  1. 1.
    Krätschmer W, Lamb LD, Fostiropoulos K, Huffmann DR (1990) Solid C60: A new form of carbon. Nature 347(6291):354–358CrossRefGoogle Scholar
  2. 2.
    Martin CA, Sandler JKW, Windle AH, Schwarz M-K, Bauhofer W, Schulte K, Shaffer MSP (2005) Electric field-induced aligned multi-wall carbon nanotube networks in epoxy composites. Polymer 46(3):877–886CrossRefGoogle Scholar
  3. 3.
    Gong X, Liu J, Baskaran S (2000) Surfactant-assisted processing of carbon nanotube/polymer composites. Chem Mater 12(4):1049–1052CrossRefGoogle Scholar
  4. 4.
    Sandler J, Shaffer MSP (1999) Development of a dispersion process for carbon nanotubes in an epoxy matrix and the resulting electrical properties. Polymer 40:5967–5971CrossRefGoogle Scholar
  5. 5.
    Hou P-X, Liu C, Cheng H-M (2008) Purification of carbon nanotubes. Carbon 46:2003–2025CrossRefGoogle Scholar
  6. 6.
    Coleman JN, Khan U, Blau WJ, Gun’ko YK (2006) Small but strong: a review of the mechanical properties of carbon nanotube–polymer composites. Carbon 44(9):1624–1652CrossRefGoogle Scholar
  7. 7.
    Smart SK, Cassady AI, Lu GQ, Martin DJ (2006) The biocompatibility of carbon nanotubes. Carbon 44:1034–1047CrossRefGoogle Scholar
  8. 8.
    Yang B-X, Shi J-H, Pramoda KP (2008) Enhancement of the mechanical properties of polypropylene using polypropylene-grafted multiwalled carbon nanotubes. Compos Sci Technol 68:2490–2497CrossRefGoogle Scholar
  9. 9.
    Sulong AB, Park J, Azhari CH (2011) Process optimization of melt spinning and mechanical strength enhancement of functionalized multi-walled carbon nanotubes reinforcing polyethylene fibers. Compos B 42:11–17CrossRefGoogle Scholar
  10. 10.
    Ruan S, Gao P, Yu TX (2006) Ultra-strong gel-spun UHMWPE fibers reinforced using multiwalled carbon Nanotubes. Polymer 47:1604–1611CrossRefGoogle Scholar
  11. 11.
    Xu X, Uddin AJ, Aoki K (2010) Fabrication of high strength PVA/SWCNT composite fibers by gel spinning. Carbon 48:1977–1984CrossRefGoogle Scholar
  12. 12.
    Kang M, Chen P, Jin H-J (2009) Preparation of multiwalled carbon nanotubes incorporated silk fibroin nanofibers by electrospinning. Curr Appl Phys 9:S95–S97CrossRefGoogle Scholar
  13. 13.
    Baji A, Mai Y-W, Wong S-C (2010) Mechanical behavior of self-assembled carbon nanotube reinforced nylon 6,6 fibers. Compos Sci Technol 70:1401–1409CrossRefGoogle Scholar
  14. 14.
    Jeong JS, Jeon SY, Lee TY (2006) Fabrication of MWNTs/nylon conductive composite nanofibers by electrospinning. Diamond Relat Mater 15:1839–1843CrossRefGoogle Scholar
  15. 15.
    Shi Z, LIAN Y, Liao F (1999) Purification of single-wall carbon nanotubes. Solid State Commun 112:35–37CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.College of Textile and Clothing EngineeringSoochow UniversitySuzhouChina
  2. 2.National Engineering Laboratory for Modern SilkSoochow UniversitySuzhouChina

Personalised recommendations