Pure cellulose-I nanofibres were fabricated by electrospinning of cellulose acetate (CA) solution followed by deacetylation. These cellulose nanofibres were carbonized using temperatures in the range 400-1500 °C and the resulting carbon nanofibres (CNFs) were characterized using Raman spectroscopy and transmission electron microscopy (TEM). The crystal size along the basal plane was found to increase with the carbonization temperature and a graphitic structure was observed for fibres treated at a relative low temperature, of 1500 °C, which suggests the advantage of nano-sized precursors. The modulus of the CNFs, was assessed by an in-situ Raman spectroscopic study of the deformation of CNF/polymer composites, and was found to be ∼ 60 GPa for fibres carbonized at 1500 °C.
|Journal||ECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials|
|Publication status||Published - 1 Jan 2012|