In the present study, carbon molded bodies were prepared by using graphite/coke fillers and petroleum-based binder pitch with various softening points, and the thermal properties of the prepared carbon molded bodies were investigated. The ratio of a binder affects the molded body preparation: no molded body was prepared at a low binder pitch content, and swelling occurred during the thermal treatment at a high binder pitch content. The binder pitch thermal treatment yield was the highest at 41 wt% at the softening point of 150 °C and the lowest at 23 wt% at the softening point of 78 °C. A significant mass reduction was found in the range of 150 to 300 °C in the petroleum-based binder pitch, and in the range of 300 to 475 °C in the coal-based binder pitch. The molecular weight of the binder pitch was analyzed through the matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) method. The molecular weight ratio within the interval showing the highest binder pitch molecular weight (178 to 712 m/z) was the highest at 66.4% in the coal-based binder pitch (softening point 115 °C) and the lowest at 46.0% in the petroleum-based binder pitch (softening point 116 °C). When the petroleum-based binder pitch was applied, as the softening point was increased, the voids decreased and thus the thermal conductivity increased. The highest thermal conductivity was 99.5 W/mK for the carbon molded bodies prepared using the coal-based binder pitch and 102.8 W/mK for those prepared by using the petroleum-based binder pitch. The results showed that the thermal properties were similar between the coal-based binder pitch (softening point 115 °C) and the petroleum-based binder pitch (softening point 150 °C).

中文翻译：

---

用于制造导热碳成型体的石油基粘结剂沥青的制备及与商业煤基粘结剂沥青的比较

在本研究中，通过使用具有各种软化点的石墨/焦炭填料和石油基粘合剂沥青来制备碳成型体，并研究了制备的碳成型体的热性能。粘合剂的比例影响成型体的制备：在低粘合剂沥青含量下没有制备成型体，并且在高粘合剂沥青含量下的热处理过程中发生溶胀。粘合剂沥青热处理的产率在150℃的软化点时最高为41wt％，在78℃的软化点时最低为23wt％。发现在基于石油的粘合剂沥青中在150至300℃的范围内以及在基于煤的粘合剂沥青中在300至475℃的范围内，质量显着降低。通过基质辅助激光解吸/电离飞行时间（MALDI-TOF）方法分析了粘合剂沥青的分子量。区间内的分子量比显示最高的粘合剂沥青分子量（178至712 m / z）在煤基粘结剂沥青（软化点为115°C）中最高，为66.4％，在石油基粘结剂沥青（软化点为116°C）中最低，为46.0％。当施加石油基粘合剂沥青时，随着软化点的增加，空隙减少，因此热导率增加。对于使用煤基粘合剂沥青制备的碳成型体，最高导热率是99.5 W / mK，对于使用石油基粘合剂沥青制备的那些碳成型体，导热率最高为102.8 W / mK。结果表明，热性能在煤基粘结剂沥青（软化点为115℃）和石油基粘结剂沥青（软化点为150℃）之间相似。