采用阳极氧化法对PAN基高模碳纤维进行在线表面处理,重点研究了氧化电流密度对炭纤维表面形貌、比表面积、表面官能团的影响。结果表明,电流密度对纤维形貌、比表面积影响不大;氧化后纤维表面官能团显著提高。根据实验结果,提出了PAN基高模炭纤维的氧化模型。 Anodic oxidation of PAN-based high-modulus carbon fibers on-line surface treatment, focusing on the oxidation current density of carbon fiber surface morphology, specific surface area, surface functional groups. The results showed that the current density had little effect on the fiber morphology and specific surface area. The functional groups on the surface of the fiber increased significantly after oxidation. Based on the experimental results, the oxidation model of PAN-based high-modulus carbon fibers is proposed.