影响炭质中间相形成和发展的因素——Ⅱ.添加剂和外加场  

FACTORS INFLUENCING THE FORMATION AND DEVELOPMENT OF CARBONAEOUS MESOPHASE Ⅱ.ADDITIVES AND APPLIED FIELDS

作　　者：李同起[1] 王成扬[2] 胡子君[1] 王俊山[1] 

机构地区：[1]航天材料及工艺研究所先进功能复合材料技术国防科技重点实验室,北京100076 [2]天津大学化工学院绿色合成与转化教育部重点实验室,天津300072

出　　处：《炭素技术》2007年第2期22-28,共7页Carbon Techniques

基　　金：国家自然科学基金项目(50172034)

摘　　要：在制备炭质中间相的过程中,为了调整中间相形成的速度、获得特种中间相产品或研究中间相的形成机理,研究者们往往向制备中间相的原料中添加某些添加剂,这些添加剂的存在对中间相的形成过程和生成方式产生了影响。另外,在外加场(如力场、磁场、电场)的作用下,中间相分子的取向发展也会受到一定的影响。本文主要讨论添加剂(包括物理添加剂和化学添加剂)存在下中间相形成的特征以及外加场(力场、磁场和电场)对中间相形成和发展的影响,并利用“粒状基本单元构筑”中间相形成理论对这些影响因素的作用机理给予了合理的解释。To adjust the formation speed, obtain special carbonaceous mesophase products or investigate the formation mechanism of mesophase, some additives are always added into raw materials by researches. These additives will inevitably influence the formation and development of carbonaceous mesophase. Additionally, applied fields, such as force field, magnetic field and electric field, would also influence the orientation of carbonaceous mesophase and thus exert an effect on its formation and development. In this paper, evolution of carbonaceous mesophase in the reactivity system with physical or chemical additives or in the presence of applied fields, such as force field, magnetic field or electric field, is summarized and analyzed according to the theory of ＂Building from Granular Basic Units＂ （BGBU）. It is found that the BGBU theory could be used to explain lots of experimental results, which on the other hand confirms the validity of BGBU theory.

关 键 词：炭质中间相 中间相炭微球 添加剂 外加场 

分 类 号：TQ522.63[化学工程—煤化学工程]