以含有喹啉不溶物的煤焦油沥青为原料,在410 ℃、不同反应时间下获得一系列中间相炭微球(MCMB)和小于0.5 μm的碳质颗粒(SCP).通过对中间相沥青的软化点、族组成和MCMB、SCP的形貌及MCMB断面结构的分析,认为非均相成核MCMB的形成和生长过程不同于均相成核的融并生长过程,而是SCP碳质颗粒的构筑过程,我们称之为"球形基本单元构筑"过程.在MCMB生长过程中,体系的黏度对SCP的形成和MCMB的生长起着重要的作用.非均相成核MCMB的内部结构不是三种模型结构("地球仪"型、"洋葱"型和"同心圆"型)中的任一种,而是炭层具有收缩点的复杂结构,并且球体的结构不具有"继承性",即随着反应时间的延长而不断发生变化和调整.MCMB内部分子在球体生长过程中的主要变化趋势是分子的不断缩合长大,而不是分子片层的平行趋向.
参考文献
| [1] | 王成扬,姜卉,李鹏,郑嘉明.原生QI成核中间相炭微球的结构[J].新型炭材料,2000(04):9-12. |
| [2] | 高燕,宋怀河,陈晓红,毛义良,刘先龙.不同β树脂含量的沥青中间相炭微球的形态及其成型性能研究[J].新型炭材料,2001(02):32-35. |
| [3] | 李伏虎,沈曾民,薛锐生,迟伟东.乳液法制备中间相炭微球的研究[J].新型炭材料,2004(01):21-27. |
| [4] | 稻垣道夫.炭材料中的组织[J].新型炭材料,1999(02):1-13. |
| [5] | Brooks J D;Taylor G H .The formation of graphitizing carbons from the liquid phase[J].Carbon,1965,3:185-193. |
| [6] | Imamura T;Yamada Y;Oi S et al.Orientation behavior of carbonaceous mesophase spherules having a new molecular arrangement in a magnetic field[J].Carbon,1978,16:481-486. |
| [7] | Imamura T;Nakamizo M;Honda H .Formation of carbonaceous mesophase at lower temperature[J].Carbon,1978,16:487-490. |
| [8] | Imamura T;Nakamizo M .Mesophase formation from decacyclene[J].Carbon,1979,17:507-508. |
| [9] | Honda H;Kimura H;Sanada Y.Changes of pleochroism and extinction contours in carbonaceous mesophase[J].CARBON,1971(09):695-697. |
| [10] | Chang Young-Chul;Sohn Hun-Joon;Ku Cha-Hun;Wang Yong-Gang .Anodic performances of mesocarbon microbeads (MCMB) prepared from synthetic naphthalene isotropic pitch[J].Carbon: An International Journal Sponsored by the American Carbon Society,1999(8):1285-1297. |
| [11] | 李同起,王成扬,刘秀军,郑嘉明,王慧.鳞片石墨对中间相炭微球织构的影响（英文）[J].新型炭材料,2002(04):1-6. |
| [12] | Wang C Y;Li T Q;Liu X J.Mesophase structure formed from coal tar pitch with the presence of inorganic impurities[A].Oviedo,Spain,2003 |
| [13] | 刘秀军,王成扬,李同起,袁克峰.酚醛树脂对均相成核的中间相炭微球生成的作用[J].炭素技术,2003(01):1-4. |
| [14] | Liu X J;Wang C Y;Li T Q.Influence of sulfur on microtexture of mesocarbon microbeads (MCMB)[A].北京:118. |
| [15] | 刘秀军,王成扬,李同起.硫存在下的中间相炭微球制备及形貌[J].天津大学学报,2003(03):267-270. |
| [16] | Taylor G H;Pennock G M;Fitz Gerald J D et al.Influence of QI on mesophase structure[J].Carbon,1993,31(02):341-354. |
| [17] | Wang Yong-Gang;Egashira Minato;Ishida Sumihito .Microstructure of mesocarbon microbeads prepared from synthetic isotropic naphthalene pitch in the presence of carbon black[J].Carbon: An International Journal Sponsored by the American Carbon Society,1999(2):307-314. |
| [18] | Pérez M;Granda M;Santamaría R et al.Preventing mesophase growth in petroleum pitches by the addition of coal-tar pitch[J].CARBON,2003,41:1851-1864. |
| [19] | E. Mora;R. Santamaria;C. Blanco;M. Granda;R. Menendez .Mesophase development in petroleum and coal-tar pitches and their blends[J].Journal of analytical & applied pyrolysis,2003(aug):409-424. |
| [20] | Y. Lu;L. Ling .Preparation of mesocarbon microbeads from coal tar[J].Journal of Materials Science,1999(16):4043-4050. |
| [21] | R. Alvarez;C.S. Canga;M.A. Diez;E. Fuente;R. Garcia;A.I. Gonzalez de Andres .Influence of wet and preheated coal charging on the nature of quinoline insolubles of coal tars and their derived pitches[J].Fuel Processing Technology,1996(3):281-293. |
| [22] | 钱树安.略论炭素科学的形成和进展I.总论[J].炭素,1995(02):1-3. |
| [23] | Tillmanns H;Pietzka G;Pauls H .Influence of the quinoline-insoluble matter in pitch on carbonization behavior and structure of pitch coke[J].Fuel,1978,57(03):171-173. |
| [24] | J. J. McHUGH;D. D. EDIE .THE ORIENTATION OF MESOPHASE PITCH DURING FULLY DEVELOPED CHANNEL FLOW[J].Carbon: An International Journal Sponsored by the American Carbon Society,1996(11):1315-1322. |
| [25] | Isao Mochida;Seong-Ho Yoon;Yozo Korai .Mesoscopic Structure and Properties of Liquid Crystalline Mesophase Pitch and Its Transformation into Carbon Fiber[J].Chemical record,2002(2):81-101. |
| [26] | Wang Y G;Egashira M;Ishida S et al.Microstructure of mesocarbon microbeads prepared from synthetic isotropic naphthalene pitch in the presence of carbon black[J].CARBON,1998,36:307-314. |
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