| 초록 |
Spinnable pitch for melt-electrospinning was prepared from pyrolized fuel oil by electron beam (E-beam) radiation. The E-beam treated pitches were characterized by measuring their elemental composition, softening point, viscosity, molecular weight and spinnability. The softening point and molecular weight were increased according to absorbed doses of E-beam radiation and adding AlCl3. The range of molecular weight distribution of modified pitch becomes narrow for better spinning owing to generating aromatic compound with similar molecular weight. The diameter of melt -electrospun fibers in applied 20 kV decreased 53% (4.7 ± 0.9 μm) compared to that of melt-spun fibers (10.2 ± 2.8 μm). |
