聚丙烯腈碳纤维原丝改性的研究进展

Research Progress on Modification of PAN Fiber Precursor

从聚丙烯腈(PAN)基碳纤维的原丝改性入手,着重综述了PAN基碳纤维原丝改性的国内外现状,原丝改性主要以化学改性与物理改性为主,化学改性作为一种较为成熟的改性手段,其大大提高了碳纤维的力学性能;而物理改性主要以辐射改性为主,辐射改性能够改善预氧化过程,对碳纤维最终性能的影响尚需进一步深入研究。最后对PAN基碳纤维原丝的改性研究进行了展望。

The development and current research situation on modification of PAN precursor was mainly focused on.The modification mainly has two methods：chemical modification and physical modification.The chemical modification as a more mature modification method could improve the mechanical properties of PAN-based carbon fibers largely.Though the physical modification mainly including irradiation modificationis, beneficial to stabilization process, a further study on how to affect the mechanical properties of carbon fibers were needed.At last, the new direction in the future on modification of PAN precursor was indicated.