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COAL REINFORCED COMPOSITE POLYAMIDE NANOFIBERS

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Author(s): R. Keskin | I. Gocek | U. K. Sahin | O. B. Berkalp | N. Acarkan | S. Ozkan | C. D. Dikmen | E. Daskaya | H. Saglam

Journal: Annals of the University of Oradea. Fascicle of Textiles, Leatherwork
ISSN 1843-813X

Volume: XIV;
Issue: 2;
Start page: 56;
Date: 2013;
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Keywords: Coal | nanocomposite | nanofiber | polyamide | nanoparticle reinforced polymeric matrix | coal reinforced nanofibers.

ABSTRACT
Polymer nanocomposites are novel classes of composite materials derived from nanoparticles with at least one dimension in the nanometric range. Nanofibers that are produced by electrospinning process have a wide range of use in different textile applications including medical textiles, filtration textiles, protective clothing, as well as coatings for various purposes [1-4]. The aim of this study is to design and develop nanosized coal reinforced composite polyamide (PA) nanofibers by electrospinning process that have homogeneous morphological structure providing the same characteristics throughout the resulting nanocomposite product. In order to accomplish this goal, high molecular weight PA66 and coal nanoparticles were used as materials to obtain the nanocomposite structured nanofibers. Different weight percent coal nanoparticles such as 0, 0.5, 1, 1.5 and 2 were used in the PA polymer matrix in order to compare the effect of coal amount on dispersibility of the filler in the polymeric matrix used to produce nanofibers. 5 wt.%, 10 wt.%, 15 wt.% and 20 wt.% solutions of PA66 were prepared in formic acid in order to find out the optimum concentration for the polymer that is needed to produce nanoscaled, well-defined and well-structured nanofibers without defects such as beads and fractures in their structure. Nanofiber web structures were produced in order to evaluate the processability of the nanosized coal reinforced PA nanocomposite in the electrospinning process. Morphological analyses were performed on the nanofibers produced in order to assess the dispersibility of the nanosized coal particles in nanocomposite structured nanofibers.
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