Abstract
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°C. At 250°C, significant oxidation occurs, the amount of CO functional groups reaches a maximum, the typical cellulose crystal structure disappears and a new aromatic structure appears. The CO functional groups are gradually lost while an aromatic structure steadily develops with a further increase of temperature from 250 to 340°C. The tensile strength of the jute-based carbon fibers increases with increasing amount of the aromatic structure during pre-oxidation, rather than that of CO groups. The highest tensile strength of the carbon fibers is (200.4±41.0) MPa.
Original language | English |
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Pages (from-to) | 448-453 |
Number of pages | 6 |
Journal | Xinxing Tan Cailiao/New Carbon Materials |
Volume | 28 |
Issue number | 6 |
DOIs | |
State | Published - Dec 2013 |
Keywords
- Carbon fibers
- Jute
- Pre-oxidation