The high cost of carbon fibre continues to limit its use in industries like automotive, construction and energy. Since the cost is closely linked to the precursor, considerable research has focussed on the use of low-cost alternatives. A promising candidate is a composite fibre consisting of blended cellulose and lignin, which has the added benefit of being derived from sustainable resources. The benefits of blending cellulose and lignin reduce some of the negative aspects of converting single component cellulose and lignin fibres to carbon fibre, although the production from such a blend, remains largely underdeveloped. In this study, the effects of stabilisation temperature and the stabilisation process of the blended fibres are explored. Moreover, the viscoelastic properties of the cellulose-lignin fibre are investigated by DMA for the first time. Finally, the cause of fusion in the stabilisation is adressed and solved by applying a spin finish.

碳纤维的高成本继续限制了其在汽车，建筑和能源等行业的使用。由于成本与前身紧密相关，因此大量研究集中在使用低成本替代品上。一种有前途的候选材料是由纤维素和木质素混合而成的复合纤维，它具有源自可持续资源的额外好处。混合纤维素和木质素的好处减少了将单组份纤维素和木质素纤维转变为碳纤维的某些不利方面，尽管这种混合物的生产仍远远落后。在这项研究中，探讨了稳定温度和混合纤维稳定过程的影响。此外，DMA首次研究了纤维素-木质素纤维的粘弹性。最后，通过施加纺丝油剂解决并解决了稳定化过程中的熔融原因。