Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 99: Issue 3
Thermal transitions of polylactide false-twist textured multifilaments determined by DSC and TMA
Authors:
A. Manich IQAC (Institute of Advanced Chemistry of Catalonia)-CSIC (Spanish National Research Council) Jordi Girona, 18-26 08034 Barcelona Spain

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J. Carilla IQAC (Institute of Advanced Chemistry of Catalonia)-CSIC (Spanish National Research Council) Jordi Girona, 18-26 08034 Barcelona Spain

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R. Miguel UBI (Universidade da Beira Interior), Marquês d’Ávila e Bolama 6201-001 Covilhã Portugal

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J. Lucas UBI (Universidade da Beira Interior), Marquês d’Ávila e Bolama 6201-001 Covilhã Portugal

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F. Franco UBI (Universidade da Beira Interior), Marquês d’Ávila e Bolama 6201-001 Covilhã Portugal

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L. Montero INTEXTER (Textile Research Institute)-UPC (Technical University of Catalonia) Colom, 15 08222 Terrassa Spain

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D. Cayuela INTEXTER (Textile Research Institute)-UPC (Technical University of Catalonia) Colom, 15 08222 Terrassa Spain

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Pages:
723–731
Online Publication Date:
01 Dec 2009
Publication Date:
01 Mar 2010
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-009-0616-0
Keywords:
Crystallisation; False-twist texturing; Polylactide; Relaxation; Thermal transitions
Restricted access

Abstract  

A partially oriented melt-extruded PLA multifilament was false-twist textured to stabilize its structure. Conventional DSC analysis showed a relaxation peak at the end of glass transition. Simultaneous consideration of the TMA curve enabled us to evaluate both the relaxation and the cold crystallisation produced during the DSC scan. The periodic load applied during TMA experiments also enabled us to examine the evolution of Young’s modulus along the glass transition, relaxation and cold crystallisation phenomena. Increases in Young’s modulus and in enthalpy are related because of crystallisation. Texturing increased crystallinity and decreased cold crystallisation of PLA during the DSC scan.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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