Title:
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Thermal transitions of polylactide false-twist textured multifilaments determined by DSC and TMA
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Author:
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Manich Bou, Albert M.; Carilla Auguet, Josep; Miguel Lopes, Rui Alberto; Lucas Mendes, Jose; Franco, F. G. F.; Montero, Lucila A.; Cayuela Marín, Diana
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Other authors:
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Universitat Politècnica de Catalunya. Institut d'Investigació Tèxtil i Cooperació Industrial de Terrassa; Universitat Politècnica de Catalunya. TECTEX - Grup de Recerca en Tecnologia Tèxtil |
Abstract:
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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. |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria tèxtil ::Fabricació tèxtil -Àrees temàtiques de la UPC::Enginyeria tèxtil ::Teixits -Textile fabrics--Technological innovations -Teixits i tèxtils -- Fabricació |
Rights:
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Document type:
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Article - Published version Article |
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