芳香族硝基化合物改性煤沥青研究  

Modification of coal tar pitch with aromatic nitro-compounds

作　　者：邱莉莉[1] 许斌[1] 惠大陆[1] 田钮[1] 黄艳[1] 

机构地区：[1]武汉科技大学化学工程与技术学院,湖北武汉430081

出　　处：《炭素技术》2012年第4期1-6,共6页Carbon Techniques

摘　　要：以煤沥青为原料,通过添加不同含量的芳香族硝基化合物对煤沥青进行改性处理,采用TG、CO2反应性、XRD和SEM对改性沥青焦进行表征。结果表明,芳香族硝基化合物有效地促进了煤沥青在炭化过程中的焦化缩聚,使产物沥青焦结构更加致密,并在一定程度上改变了沥青焦的氧化行为,从而显著提高了沥青黏结焦的抗氧化性能。Coal tar pitch was modified by adding different kinds of aromatic nitro-compounds. Modified pitch cokes were characterized by using TG, CO2 reactivity, XRD and SEM measurements. The results show that nitro-compounds substantially enhance coking condensation of coal tar pitch which leads to the formation of denser pitch coke. Nitro-compounds effectively changed the oxidation behavior of modified pitch coke. The oxidation resistance of modified pitch coke has been evidently improved.

关 键 词：煤沥青 芳香族硝基化合物 改性 抗氧化性能 

分 类 号：TQ522.65[化学工程—煤化学工程]