Molecular weight dependence of fiber structure development in the laser drawing of poly(ethylene terephthalate) fibers
โ Scribed by Kyoung Hou Kim; Takayoshi Yamaguchi; Yutaka Ohkoshi; Yasuo Gotoh; Masanobu Nagura; Hiroshi Urakawa; Masaru Kotera; Takeshi Kikutani
- Book ID
- 105339183
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 536 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0887-6266
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The mechanism of thermally induced elongation in poly(ethylene terephthalate) fiber spun at 3500 m min 01 has been examined. This partially oriented fiber has a crystalline content of about 25% and a high degree of orientation. The effect of time and tension during heat treatment was examined, and i
## Abstract Molecular orientation in poly(ethylene terephthalate) (PET) fibers was studied by polarized fluorescence. The observed amorphous orientation of the spun as fiber was not random but uniaxial along the fiber axis. This orientation increased with draw ratio up to about 2 and then remained