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http://nopr.niscpr.res.in/handle/123456789/22675| Title: | Deformation micromechanics of lyocell fibres subjected to tensile strain |
| Authors: | Dadashian, F Wilding, M A |
| Keywords: | Cellulose;FTIR micro-spectroscopy;Lyocell fibre |
| Issue Date: | Dec-2003 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The deformation micromechanics of strained lyocell fibres has been studied using Fourier-transform infrared (FTIR) spectroscopy and wide-angle X-ray diffraction (WAXD) technique. For applied strain of up to 10%, the FTIR study shows effects across the entire spectral range, particularly in the frequency regions corresponding to O-H stretching and C-O-C deformation. The recorded features include changes in both relative intensities and band position. The data suggest that the deformation micromechanics may involve H-bond deformation, rupture and re-formation. The WAXD study does not reveal any measurable crystal strain corresponding to the applied strain, indicating that at the micro-level the deformation is concentrated in the inter-fibrillar regions. On the other hand, the WAXD data show a decrease in crystallinity upon stretching the fibres. |
| Page(s): | 385-392 |
| ISSN: | 0975-1025 (Online); 0971-0426 (Print) |
| Appears in Collections: | IJFTR Vol.28(4) [December 2003] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJFTR 28(4) 385-392.pdf | 2.01 MB | Adobe PDF | View/Open |
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