Journal article
A tensile stage for high-stress low-strain fibre studies
Department of Chemical and Biochemical Engineering, Technical University of Denmark1
University of Copenhagen2
Solar Energy Programme, Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
Risø National Laboratory for Sustainable Energy, Technical University of Denmark4
Teijin Aramid B.V.5
Determining the effects of stress on the internal structure of high-performance fibres may provide insight into their structure-property relationships. The deformation of voids inside a poly(p-phenylene terephthalamide) (PPTA) fibre upon application of stress is one such effect which may be observed using in situ small-angle X-ray scattering.
For this purpose, a compact in-vacuum stretching device is described here, capable of applying a force of up to 500 N using specially designed fibre clamps. Furthermore, a small radiative heater is placed around the fibre at the measurement position, so that the effects of the application of heat during tensile load can also be determined.
Initial results show a slight but significant effect of stress and heating on the internal void structure of PPTA fibres. The effects on the void structure of heating and stress appear to be markedly different.
Language: | English |
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Publisher: | International Union of Crystallography (IUCr) |
Year: | 2011 |
Pages: | 1297-1299 |
ISSN: | 16005767 and 00218898 |
Types: | Journal article |
DOI: | 10.1107/S0021889811042373 |
ORCIDs: | Andreasen, Jens Wenzel and 0000-0002-8998-9390 |