Abstract: Composite nanofibers of PA 6 and organically modified montmorillonite (O2MMT) , DK25 , were
prepared by electrospinning. The dispersion and exfoliation of O2MMTwere obtained by two steps : the primary
exfoliation in DMF and the further exfoliation in PA 6 solution. The size distribution of O2MMT layers was
measured in a particle size analyzer and the fibrous structures of the composite nanofiber were examined using
SEM. An AFM in tapping mode was employed to investigate the surface morphology of the electrospun
nanofibers. The study has revealed that the dosage of O2MMT has impact on the morphology and structure of
the composite nanofiber.