Polylactide. I. Continuous dry spinning–hot drawing preparation of fibers
✍ Scribed by I. Horáček; V. Kalíšek
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 561 KB
- Volume
- 54
- Category
- Article
- ISSN
- 0021-8995
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In this paper the influence of the ambient temperature of the spinline during dry spinning of PLLA solutions has been discussed. Variation of this ambient temperature induced variation of the extrudate swell of the spinline, affected by the rate of solidification of the PLLA. By way of phase separat
## Abstract Poly(lactic acid) fiber was prepared by dry‐jet‐wet spinning of the polymer from chloroform solution and with methanol as the precipitating medium. The as‐spun fiber was subsequently made into high strength fiber by two‐step process of drawing at a temperature of 90°C and subsequent hea
This paper is concerned with the influences of the extrusion speed and the winding speed during dry spinning of 4 w t '% solutions of poly(L-lactide) (PLLA) in mixtures of chloroform and toluene, on the ultimate fiber tenacities after hot drawing. It was found that high-strength PLLA fibers (1.5 GPa