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Effect of electrospinning parameters on the characterization of PLA/HNT nanocomposite fibers

Published online by Cambridge University Press:  31 January 2011

Ahmed H. Touny ,
Joseph G. Lawrence ,
Andrew D. Jones  and
Sarit B. Bhaduri
Ahmed H. Touny*
Affiliation:
Department of Mechanical, Industrial, and Manufacturing Engineering, University of Toledo, Toledo, Ohio 43606
Joseph G. Lawrence*
Affiliation:
Department of Mechanical, Industrial, and Manufacturing Engineering, and Department of Bioengineering, University of Toledo, Toledo, Ohio 43606
Andrew D. Jones
Affiliation:
Department of Mechanical, Industrial, and Manufacturing Engineering, University of Toledo, Toledo, Ohio 43606
Sarit B. Bhaduri
Affiliation:
Department of Mechanical, Industrial, and Manufacturing Engineering, and Department of Surgery, University of Toledo, Toledo, Ohio 43606
*
a)Current address: Chemistry Department, Helwan University, Ain Helwan, Helwan, Egypt.
b)Address all correspondence to this author. e-mail: joseph.lawrence@utoledo.edu
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Abstract

Halloysite nanotubes (HNT) reinforced polylactic acid (PLA) nanocomposite fibers were produced using an electrospinning approach for biomedical applications. The PLA/HNT nanocomposite fibers were characterized using x-ray diffraction (XRD) and scanning electron microscopy (SEM). The various factors such as type of solvent, solution concentration, HNT loading and feed rate, affecting the electrospinning process, and the morphology of the nanofibers were investigated, and the optimum values for these parameters are suggested. The results indicated that the addition of dimethylformamide (DMF) to chloroform facilitated the electrospinning process because of the improvement in electrical conductivity and viscosity of the solution. Nanometer-sized fibers were obtained by the addition of HNT to PLA. HNT loadings had a significant effect on the morphology of the nanofibers. Bead-free fibers were produced at feed rates between 1 and 4 mL/h.

Keywords

BiomedicalPolymerNanoscale

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Type
Articles
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Journal of Materials Research , Volume 25 , Issue 5 , May 2010 , pp. 857 - 865
Copyright
Copyright © Materials Research Society 2010

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