Preparation of Partial Mesophase Pitch-based Carbon Fiber from FCC-DO

Partial mesophase (PM) pitch precursor was prepared from fluidized catalytic cracking-decant oils (FCC-DO) by chemical reaction in the presence of Br 2. The PM pitch heated-treatment at 420 o C for 9 h exhibited the softening point of 297 o C with 23% yield, and 55% anisotropic content. The PM pitch precursor was melt-spun through circular nozzle by pressurized N 2, stabilized at 310 o C, carbonized at 700 o C, 1000 o C, and 1200 o C. The enough stabilization introduced 16.4% of the oxygen approximately. The stacking height (L c002) and interlayer spacing (d 002) of the as-spun fibers were 4.58 nm and 3.45 A and the value became minimum and maximum at 700 o C respectively in the carbonization procedure. The tensile strength increased with an increase in the heat treatment temperature exhibiting highest value of 750 MPa at 1200 o C carbonization.