Polyamide 6 nanofibrous Nonwovens via Electrospinning

Enrico Marsano, Lijo Francis, Francesco Giunco

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Electrospinning of Polyamide 6 (PA 6) in 2,2,2-trifluoroethanol (TFE) was investigated for the fabrication of nanofibrous nonwoven membranes useful for separation systems. The effects of solution characteristics such as concentration and conductivity as well as the effects of processing conditions such as relative humidity and applied potential on the resultant nonwoven fibers were studied. By changing the relative humidity of the electrospinning chamber and the conductivity of the solvent, it is possible to modulate the fiber's size and consequently the porosity of the mats. The morphology of the electrospun PA 6 nanofibers was observed by scanning electron microscopy. The mechanical properties of the nanofibers were also studied. The results showed that PA 6 nanofibers having a diameter ranging from 100 to 600 nm, has been successfully prepared. The electrospun PA 6 nanofiber mats show good mechanical properties, such as a high-tensile strength (12 ± 0.2 MPa) and elongation (300% ± 50%). The strength of the web was high enough to use as filter without the need of any supporting matrix and could be applicable in the field of self-supporting membranes. The X-ray and DSC analyses of the PA 6 electrospun fibers show the presence of the γ form of PA 6 crystallite that is usually obtained in the condition where a high stress of the fibers is applied.

Original languageEnglish
Pages (from-to)1754-1765
Number of pages12
JournalJournal of Applied Polymer Science
Volume117
Issue number3
DOIs
Publication statusPublished - 1 Aug 2010
Externally publishedYes

Fingerprint

Electrospinning
Polyamides
Nanofibers
Fibers
Atmospheric humidity
Trifluoroethanol
Membranes
Mechanical properties
nylon 6
Elongation
Tensile strength
Porosity
Fabrication
X rays
Scanning electron microscopy
Processing

Keywords

  • Electrospinning
  • Membranes
  • Nanofibers
  • Orientation
  • Polyamides

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Polyamide 6 nanofibrous Nonwovens via Electrospinning. / Marsano, Enrico; Francis, Lijo; Giunco, Francesco.

In: Journal of Applied Polymer Science, Vol. 117, No. 3, 01.08.2010, p. 1754-1765.

Research output: Contribution to journalArticle

Marsano, Enrico ; Francis, Lijo ; Giunco, Francesco. / Polyamide 6 nanofibrous Nonwovens via Electrospinning. In: Journal of Applied Polymer Science. 2010 ; Vol. 117, No. 3. pp. 1754-1765.
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