Study of polycarbonate/MWNT electrospun nanofiber and its multi-filament application

Abstract

Over the past decade, there have been significant advancement in the field of electrospinning area. This study has focused on preparing yarn using polycarbonate (PC) nanofibers including modified multi-walled carbon nanotube (mMWNT) by solution, electrospinning process using the mixture of solvents consisting of tretrahydronturan (THF) and N,N-dimethylformamide (DMF). In order to enhance the dispersion, MWNT was chemically modified. TEM analysis for the prepared PC/mMWNT nanofibers reveals that mMWNT was well-dispersed into the PC nanofiber matrix. Also with increasing contents of mMWNT, thermal stability of PC/mMWNT nanofibers was improved than that of PC nanofibers. Moreover when 3 to 5 wt% of mMWNT was added, the nanofibers showed good electrical properties expecting antistatic effect, ranging 109.1-109.5 Ω. It was confirmed that the multi-filament fibers using PC/mMWNT had 60-1.00 μm in diameter and 4 -5 cm in length.