| 초록 |
Pyrolysis fuel oil (PFO) was used as a precursor for a binder pitch. It is well known that quinoline-insoluble (QI) content is important to prepare an artificial graphite. In this study, PFO was reformed to control QI content using heat-treatment with different amount of carbon black at 340 ℃ for 4 h. The reformed pitches are labeled according to amount of carbon black added in PFO as XXCB, where XX is weight ratio of carbon black in PFO. The matrix-assisted laser desorption/ionization spectroscopy was used to confirm molecular weight distribution of prepared pitches. The SP and molecular-weight-distribution of carbon black added reforming pitches are decreased compared to that of 0CB because volatile components in PFO residue are absorbed onto the carbon black surface during the heat-treatment. The QI of 0CB, 0.5CB, 1.0CB and 1.5CB are 1, 5, 8 and 14%, respectively. This result indicates that the carbon black into the PFO is acted as nuclei for the growth of QI particles. |
