为了探讨原丝的性能和碳化工艺与碳纤维性能的关系,我们采用不同品种、不同结构的粘胶原丝用直接碳化和增强热处理后再碳化、松弛状态和加张力下的碳化等不同碳化工艺,研究了碳化过程中的热收缩和重量的变化。结果表明,采用增强热处理后碳化工艺,可制得性能良好的碳纤维,在碳化过程中施加一定张力,对提高碳纤维强度有利。 In order to investigate the relationship between the properties of carbon fiber and the carbonization process, we use different carbonization processes of different varieties and different structures of viscose rayon with direct carbonization and heat treatment after carbonization, relaxation and carbonization under tension. The thermal shrinkage and weight change during carbonization were investigated. The results show that carbon fiber with good performance can be obtained by carbonization process with enhanced heat treatment, and a certain tension during carbonization can be obtained, which is beneficial to improve the strength of carbon fiber.