Petroleum based isotropic pitch was spun into short fiber by melt-blown spinning technology. The processing parameters chosen were air velocity, die temperature, and throughput rate of the pitch within the ranges of experimental tolerances. The fiber diameter was reduced to 6μm by increases of hot air velocity, and spin die temperature. Also, the fiber diameter was strongly dependent on the throughput rate of the pitch and jet speed of hot air through the spinnerets. Even fibers with 10μm diameter were produced at throughput rate of 0.17g/min·hole and at die temperature of 290℃.

• Chan Kim(Faculty of Applied Chemistry, Chonnam National University)
• Su-Hyun Lee(Nanotechnics Co., Ltd. Sihwha Industrial Zone 2Ba 103)
• Young-Min Kim(Nanotechnics Co., Ltd. Sihwha Industrial Zone 2Ba 103)
• Kap-Seung Yang(Faculty of Applied Chemistry, Chonnam National University)