Enhanced mechanical and thermal properties of regenerated cellulose/graphene composite fibers
writer：Mingwei Tian, Qu L, Zhang X, et al
keywords：Composite fiber， Graphene oxide， Mechanical properties， Thermal analysis，Thermal insulation
source：期刊
specific source：http://www.sciencedirect.com/science/article/pii/S0144861714004858
Issue time：2014年
In this study, a wet spinning method was applied to fabricate regenerated cellulose fibers filled with low graphene loading which was systematically characterized by SEM, TEM, FTIR and XRD techniques. Subsequently, the mechanical and thermal properties of the resulting fibers were investigated. With only 0.2 wt% loading of graphene, a ～50% improvement of tensile strength and 25% enhancement of Young''s modulus were obtained and the modified Halpin–Tsai model was built to predict the mechanical properties of composite fibers. Thermal analysis of the composite fibers showed remarkably enhanced thermal stability and dynamic heat transfer performance of graphene-filled cellulose composite fiber, also, the presence of graphene oxide can significantly enhance the thermal conductivity of the composite fiber. This work provided a facile way to improve mechanical and thermal properties of regenerated cellulose fibers. The resultant composite fibers have potential application in thermal insulation and reinforced fibrous materials.