WU Heng1, 2, FAN Shang-wu1, 2, YUAN Xiao-wen1. Fabrication of carbon fibers from jute fibers by pre-oxidation and carbonization. New Carbon Mater., 2013, 28(6): 448-453. doi: 10.1016/S1872-5805(13)60093-1
Citation:
WU Heng1, 2, FAN Shang-wu1, 2, YUAN Xiao-wen1. Fabrication of carbon fibers from jute fibers by pre-oxidation and carbonization. New Carbon Mater., 2013, 28(6): 448-453. doi: 10.1016/S1872-5805(13)60093-1
WU Heng1, 2, FAN Shang-wu1, 2, YUAN Xiao-wen1. Fabrication of carbon fibers from jute fibers by pre-oxidation and carbonization. New Carbon Mater., 2013, 28(6): 448-453. doi: 10.1016/S1872-5805(13)60093-1
Citation:
WU Heng1, 2, FAN Shang-wu1, 2, YUAN Xiao-wen1. Fabrication of carbon fibers from jute fibers by pre-oxidation and carbonization. New Carbon Mater., 2013, 28(6): 448-453. doi: 10.1016/S1872-5805(13)60093-1
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China|2.Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi’an 710072, China;3.Agency for Science, Technology and Research, Singapore Institute of Manufacturing Technology, Singapore
Low-cost jute-based carbon fibers were fabricated by pre-oxidation and carbonization. The chemical, morphological and crystal structure of the jute fibers during pre-oxidation were investigated by Fourier transform infrared spectroscopy, differential scanning calorimetry, elemental analysis, X-ray diffraction and scanning electron microscopy. Results show that the optimum pre-oxidation temperature range is from 250 to 340℃. At 250℃, significant oxidation occurs, the amount of C=O functional groups reaches a maximum, the typical cellulose crystal structure disappears and a new aromatic structure appears. The C=O functional groups are gradually lost while an aromatic structure steadily develops with a further increase of temperature from 250 to 340℃. The tensile strength of the jute-based carbon fibers increases with increasing amount of the aromatic structure during pre-oxidation, rather than that of C=O groups. The highest tensile strength of the carbon fibers is (200.4±41.0) MPa.