| 초록 |
The widespread use of petroleum pitches as binder is hindered by the poor mechanical properties of the derived carbon. This is because the pitches have a low capacity for interacting with filler particles during the mixing stage. In this study, we have prepared petroleum pitch from pyrolysis fuel oil (PFO) by heat treatment with different amount of carbon black for control quinolone-insoluble (QI) content. Softening point (SP), toluene insoluble (TI) and QI of petroleum pitches were measured according to standards methods ASTM D 3104, ASTM 4072 and ASTM D 4746, respectively. The wetting behavior of pitch on cokes was studied by a spreading drop test. In this test, a cylindrical pellet of moulded pitch was positioned on a flat bed of petroleum coke. The crucible containing the materials was then placed in a horizontal tube furnace purged with gas and heated. The height of the pitch drop was recorded as a function of the temperature. |
