Abstract Petroleum pitch was modified by waste styrene-butadiene-styrene copolymer (SBS) and the cokes were obtained via the co-carbonization method. The waste SBS content and the co-carbonization temperature have important effects on the morphology and structure of resultant cokes. It can be found that adding waste SBS can obviously increase the methylene content in the cokes and improve the thermal stability of the co-carbonized products. The coke of MP7.5-450-10 exhibits almost 100 vol% anisotropy region with streamline texture and has the lowest weight loss of 5 wt%. The coke of MP10-450-10-C has the smallest carbon interlayer space and the largest crystallite thickness. Co-carbonized products at 900 °C have the porous structure similar with carbon foam, and the large pore diameter is in the range of 200–1000 μm. Importantly, there are some mesopores existing in the products. Moreover, adding waste SBS can increase the specific surface area and the pore volume of carbonized products. The samples of MP7.5-450-10-C has some mesopores with the diameter of 3–50 nm, and the pore volume is 0.013 cm3 g−1.

中文翻译：

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石油沥青/废 SBS 的共碳化行为：对所得焦炭形态和结构的影响

摘要 用废苯乙烯-丁二烯-苯乙烯共聚物(SBS)改性石油沥青，共炭化制得焦炭。废SBS含量和共炭化温度对所得焦炭的形态和结构有重要影响。可以发现，加入废SBS可以明显提高焦炭中的亚甲基含量，提高共炭产物的热稳定性。MP7.5-450-10 的焦炭表现出几乎 100 vol% 的各向异性区域，具有流线纹理，重量损失最低，为 5 wt%。MP10-450-10-C焦炭的碳层间距最小，微晶厚度最大。900℃共炭化产物具有与泡沫炭相似的多孔结构，大孔径在200-1000μm范围内。重要的，产物中存在一些介孔。此外，添加废SBS可以增加碳化产品的比表面积和孔体积。MP7.5-450-10-C 样品具有一些直径为 3-50 nm 的介孔，孔体积为 0.013 cm3 g-1。