Sage Journals: Discover world-class research

Abstract

Polylactide multifilament yarns were textured in order to be endowed with properties of natural staple fibre yarns for textile applications. Texturing promotes the formation of stable secondary links between the macromolecular chains. A polylactide 167/68 dtex multifilament yarn was textured under different conditions. Relaxation experiments at yield, strain softening, strain hardening and just before breaking were performed. The relaxation behaviour was studied by the application of the generalized Maxwell model. The initial stress induced when stretched, the final non-relaxed stress after relaxation and the stress relaxed at different times were determined. Variations in the relaxation behaviour were related to texturing conditions and stretching.

Keywords

False-twist texturing generalized Maxwell model stress relaxation polylactide multifilaments

Get full access to this article

View all access options for this article.

References

Ahmed J. , Zhang JX , Song Z. and and Varshney SK Thermal properties of polylactides. Effect of molecular mass and nature of lactide isomer. J Therm Anal Calorim 2009 ; 95: 957-964.

Solarski S. , Ferreira M. and Devaux E. Thermal and mechanical characteristics of polylactide filaments drawn at different temperatures. J Text Inst 2007 ; 98: 227-236.

Manich AM , Carilla J. , Miguel RAL , Lucas JM , Franco FGF , Montero LA and Cayuela D. Thermal transitions of polylactide false-twist textured multifilaments determined by DSC and TMA. J Therm Anal Calorim 2010; 99: 723-731.

Manich AM , Carilla J. , Miguel RAL , Lucas J. , Franco F. , Montero L. and Cayuela D. Mechanical properties, relaxation behaviour and thermal characterization of false twist textured polylactide multifilament. Vlákna a textil (Fibres and Textiles) 2010; 17(2): 14-20.

Manich AM , Maíllo J. , Cayuela D. , Gacén J. , de Castellar MD and Ussman M. The effect of the air-jet and the false-twist texturing processes on the stress-relaxation of polyamide 6.6 yarns. J Appl Polym Sci 2007 ; 105: 2482-2487.

Farrington DW , Lunt J. , Davies S. and Blackburn RS Poly(lactic acid) fibres. In: Blackburn RS (ed.) Biodegradable and sustainable fibres. Cambridge: Woodhead Publishing Ltd., 2005, pp. 191-219.

Ward IM and Hadley DW An introduction to the mechanical properties of solid polymers. Chichester: J Wiley & Sons Ltd., 1983, pp. 59-60.

Manich A. Modelización reológica de fluidos alimentarios. PhD Thesis, Technical University of Catalonia UPC, Fluid Mechanics Department, Barcelona, 1990, pp. 42-44.

Komanowsky M. , Cooke PH , Damert WC , Kronick PL and McClintick MD J Amer Leath Chem Assoc 1995 ; 90: 243-256.

10.

Attenburrow GE , Covington AD and Jeyapalina S. Modelling the stress relaxation behaviour of wet leather. XXVII IULTCS Congress Proceedings , Cancún, Mexico.

11.

Vitkauskas A. Regular discrete relaxation time spectrum of textiles. XXVII IULTCS Congress Proceedings Medziagotyra (J Mater Sci) 1996; 2: 65-71.

12.

Statgraphics 5 Plus. Manugistics, Inc. 2115 Jefferson Street, Rockville, Maryland 20852, USA.

13.

Montgomery DC Design and analysis of experiments. 5th ed, New York, J Wiley & Sons, pp.194-201.

14.

Draper NR and Smith H. Applied Regression Analysis, 2nd ed. New York: J Wiley & Sons, 1981 , pp. 294-311.

Texturing,stretching and relaxation behaviour of polylactide multifilament yarns

Abstract

Keywords

Get full access to this article

References