Dai Zhong, Shi Xiaojuan, Liu Huan, Li Haiming, Han Ying, Zhou Jinghui
Liaoning Province Key Laboratory of Plup and Papermaking Engineering, Dalian Polytechnic University Dalian Liaoning Province China
RSC Adv. 2018 Jan 2;8(3):1218-1224. doi: 10.1039/c7ra10821d.
Bio-renewable carbon fibers are fabricated and employed as high-strength composite materials in many fields. In this work, a facile and low energy consumption method was developed to fabricate high-strength lignin-based carbon fibers. Using iodine treatment, the thermodynamic stability of the lignin-based precursor fibers increased significantly, and thus energy consumption during the preparation of the carbon fibers was reduced. The influence of the iodine treatment on fibers was analyzed by differential scanning calorimetry (DSC), scanning electron microscopy (SEM), Raman spectroscopy, tension testing, The resulting iodine lignin-based carbon fibers had better tensile strength (89 MPa) than that of PAN carbon fibers produced by electrospinning technology.
生物可再生碳纤维被制造出来并在许多领域用作高强度复合材料。在这项工作中，开发了一种简便且低能耗的方法来制造高强度木质素基碳纤维。通过碘处理，木质素基前驱体纤维的热力学稳定性显著提高，从而降低了碳纤维制备过程中的能耗。通过差示扫描量热法（DSC）、扫描电子显微镜（SEM）、拉曼光谱、拉伸测试分析了碘处理对纤维的影响。所得的碘木质素基碳纤维具有比通过静电纺丝技术生产的聚丙烯腈（PAN）碳纤维更好的拉伸强度（89兆帕）。
