摘要
利用FI—IR、NMR等现代物理方法及元素分析研究了煤焦油沥青在与工业重油共碳化反应前后TS组分结构的变化,发现共碳化沥青较原料煤沥青具有高的脂氢含量,较多环烷结构。这种通过共碳化反应使沥青形成较丰富脂肪结构可能是导致沥青改性的根本原因。
The change in structure of HI-TS (heptane insoluble-toluene soluble) fractions of medium coal tar pitch (MCTP) and co-carbonized pitches derived from MCTP were studied using modern physical method of FT-IR,NMR and elemental analysis, It is found that co-carbonized pitches contain some amount of naphthenic groups and slightly rich r.lkyl substituents compared with MCTP, This rather rich aliphatic groups formed through co-carbonization should be the essential reason to make MCTP modification.
出处
《炭素》
1992年第4期1-6,共6页
Carbon
基金
国家自然科学基金支持项目
