一、液晶相基础由于煤系和石油系的渣油具有合适的C/H比,它们是生产高级炭材料(例如,高功率电极用针状焦或炭纤维)的优良原料。沥青类残渣要获得石墨晶体结构,必须经过许多层次的有序化。在300—500℃左右,沥青类物质能排列成中间相状态,液晶相就是在此阶段构 First, the liquid crystal phase basis Coal and petroleum residue because they have a suitable C / H ratio, they are the production of advanced carbon materials (for example, high-power electrode needle coke or carbon fiber), an excellent raw material. Asphaltene residues to obtain graphite crystal structure, must go through many levels of order. About 300-500 ℃, the pitch can be arranged into a mesophase state, the liquid crystal phase is in this phase structure