INVESTIGATION OF MORPHOLOGY AND CHARACTERIZATION OF ELECTROSPUN PVA/PANI/FE 3 O 4 NANOFIBER COMPOSITE MATERIALS
Keywords:
PAni, PVA, PAni/PVA nanofiber, Electrospinning techniqueAbstract
Polymers nanocomposites containing inorganic fillers like metal particles dispersed in
thepolymer matrix are of great interest for the optical and dielectric application. Polymer/inorganic
composites such as polyaniline/magnetite nanocomposites (PAni/Fe 3 O 4 ) can be manipulated
through various treatments in fabricating desire material such as nanofibers textile for many
applications. The modified magnetite (Fe 3 O 4 ) nanoparticles were successfully synthesized and
incorporated into polyaniline at different weight ratio and blended with polyvinyl alcohol (PVA) to
achieve a spinning solution, further PAni/Fe 3 O 4 nanofiber composites solution were used for
fabrication of nanofiber textile by an electrospinning method, and the composites nanofiber textile
materials were investigated. The crystalline phase structure of PAni/PVA andPAni/Fe 3 O 4
composites nanofibers textile was determined by XRD, shows the existence of peaks at 2θ =
24.13 o and 35.63 o for PAni and Fe 3 O 4 nanoparticles respectively. The FTIR analysis indicated a
slightdecrease in the intensity and broadening of the absorption bands at 3462 cm -1 and 3431 cm -
1 , are due to vibration stretching –NH group. The disappearance of the peakfor PAni/Fe 3 O 4
composites nanofibers textile sample containing 25 wt% of Fe 3 O 4 nanoparticles clearly indicated
the interaction of nanoparticles with nitrogen, hydrogen, carbon, and oxygen atoms in the PAni
and PVA chain. FESEM analysis of the composites nanofibers textile shows clearly no
accumulation of nanoparticles on the surface of polymeric composites nanofibers. This implies
that the growth of nanoparticles on the surface of polymeric composites hassuccessfully been
prevented.
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