论文部分内容阅读
本工作采用连续式实验装置与方法,借助热重分析、密度分析、气相色谱、X射线衍射、俄歇能谱、金相显微镜与力学性能测试等技术,系统地研究了PAN热氧稳定化纤维在连续碳化过程中纤维结构与力学性能的变化关系,并对提高碳纤维力学性能的途径进行了探讨。研究结果表明:在碳纤维的形成过程中,纤维结构的变化与力学性能的变化密切相关;纤维结构中存在的序态结构的规整性与截面结构的均匀性将对碳纤维力学性能产生重要影响。
In this work, a continuous experimental apparatus and method were used to investigate the thermal stability of PAN thermo-oxidized stabilized fibers In the continuous carbonization process, the fiber structure and mechanical properties of the relationship between changes, and to improve the mechanical properties of carbon fiber were discussed. The results show that the change of fiber structure is closely related to the change of mechanical properties during the formation of carbon fiber. The regularity of structure and the uniformity of cross-section structure in the fiber structure will have an important influence on the mechanical properties of carbon fiber.