【摘要】 以石油渣油为原料采用乳液法和热缩聚法制备出2种中间相沥青微球（MPMB-1,MPMB-2），通过偏光显微镜、X射线衍射（XRD）和扫描电子显微镜（SEM）等表征方法，研究了中间相沥青微球在热处理过程中（炭化和石墨化）微观结构的特征。研究结果表明：乳液法制备的中间相微球MPMB-1内部液晶相稠环芳烃大分子堆积取向不规则，热缩聚法制备的MPMB-2内部结构为anti-Brooks/Taylor模型结构。经过900℃炭化和2 800℃石墨化处理后，2种微球都出现石墨微晶构成的平整碳层，但乳液法微球的石墨片层间距d₀₀₂（0.33904 nm）大于热缩聚法微球的d₀₀₂（0.33834 nm），乳液法微球石墨化度低于热缩聚法微球，2种石墨化微球的石墨化度分别为57.7%和65.8%。更多还原

【Abstract】 Two kinds of mesophase pitch microbeads （MPMB-1 and MPMB-2） are prepared by emulsion method and thermal polycondensation from FCC-decant oil,respectively.The microstructure characteristics of microbeads are characterized by using polarizing microscope,scanning electron microscope（SEM） and X-ray diffraction（XRD） during heat treatment of carbonization and graphitization.The results show that MPMB-1 has an irregular and distorted lamellar structure of oriented aromatic hydrocarbons,while MPMB-2 has anti-Brooks/Taylor structure.After 900℃ carbonization and 2 800℃graphitization treatment,the flat carbon layer composed of graphite crystallites appears in both microbeads,but the graphite layer spacing d₀₀₂of the graphitized MPMB-1 (d₀₀₂=0.33904 nm) is larger than that of the graphitized MPMB-2 (d₀₀₂=0.33834 nm),and the degree of graphitization of the graphitized MPMB-1 is smaller than that of the graphitized MPMB-2.The degrees of graphitization of the two microbeads are 57.7% and 65.8%,respectively.更多还原