共炭化沥青的中间相形成及转化行为  

MESOPHASE FORMATION AND TRANSFORMATION BEHAVIOUR OF CO-CARBONIZED PITCH

作　　者：宋怀河[1] 冀勇[1] 刘朗[1] 玉茂章 

机构地区：[1]中科院山西煤炭化学研究所

出　　处：《炭素技术》1992年第1期1-6,共6页Carbon Techniques

摘　　要：煤焦油沥青与两种重质油(蒽油,三线芳烃)共炭化反应,制得改性沥青。用热台显微镜和偏光显微镜技术研究了改性沥青的中间相形成及其转化特征,发现共炭化沥青具有较原料沥青更好的热行为。与三线芳烃形成的共炭化沥青改性效果显著,中间相生长均匀,最终形成广域融并体结构,有希望作为制备高性能炭纤维的原料。wo modified pitches were prepared from coal tar pitch by co-carbonization with two kinds of heavy oils,ie, anthracene oil and the heavy fraction of light diesel oil(LDOHF)respectively.Their mesophase formatio and transformation behaviours were studied using hot-stage optical microscope and polarized light microscope.It is found that the co-carbonized pitches have good microstructare compared with the raw coal tar pitch, espcciaily the pitch from LDOHF,which can be transformed into high anisotropic coalescenced texture,and should be probably used as the precursor of high performance

关 键 词：共炭化 沥青 中间相 改性 焦油 

分 类 号：TQ522.63[化学工程—煤化学工程]