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High speed melt spinning of poly(L-lactic acid) filaments

✍ Scribed by Khaled Mezghani; J. E. Spruiell

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 198 KB
Volume: 36
Category: Article
ISSN: 0887-6266
DOI: 10.1002/(sici)1099-0488(19980430)36:6<1005::aid-polb9>3.0.co;2-v

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✦ Synopsis

Poly(L-lactic acid) filaments were prepared by high speed melt spinning at take-up velocities up to 5000 m/min. The crystallinity, birefringence, tensile strength, Young's modulus and yield strength all exhibit maxima at take-up velocities between 2000 and 3000 m/min. The boiling water shrinkage exhibits a minimum in this range. The maximum tensile strength of the as-spun filaments was 385 MPa and the maximum modulus was 6 GPa.

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