Effect of the air-jet and the false-twist texturing processes on the thermomechanical behaviour of polyamide 6.6 yarns
Polyamide 6.6 multifilament yarns are converted to crimped fibres by texturing in order to simulate the properties of natural staple fibre yarns for textile applications. Texturing is carried out by mechanical stresses (turbulences or twisting) in different atmospheres which affect crystallinity and...
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| Veröffentlicht in: | Journal of thermal analysis and calorimetry 2008-09, Vol.93 (3), p.921-926 |
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| container_title | Journal of thermal analysis and calorimetry |
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| creator | Manich, A. M. Maíllo, J. Cayuela, D. Carilla, J. Ussman, M. Gacén, J. |
| description | Polyamide 6.6 multifilament yarns are converted to crimped fibres by texturing in order to simulate the properties of natural staple fibre yarns for textile applications. Texturing is carried out by mechanical stresses (turbulences or twisting) in different atmospheres which affect crystallinity and thermal stability of yarns. Two polyamide yarns with the same linear density but consisting of filaments of different fineness were textured by the air-jet and the false-twist procedures. The influence of texturing conditions and filament fineness on crystallinity and thermomechanical behaviour and dimensional stability were studied by TMA and DSC. The air-jet texturing procedure leads to a slight increase in crystallinity of yarns whereas the false-twist texturing procedure was more effective especially when thicker filaments were textured. The inflection point of the shrinkage curve before melting was a good estimator of the effective temperature of yarn texturing. |
| doi_str_mv | 10.1007/s10973-007-8556-z |
| format | Article |
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The air-jet texturing procedure leads to a slight increase in crystallinity of yarns whereas the false-twist texturing procedure was more effective especially when thicker filaments were textured. 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The influence of texturing conditions and filament fineness on crystallinity and thermomechanical behaviour and dimensional stability were studied by TMA and DSC. The air-jet texturing procedure leads to a slight increase in crystallinity of yarns whereas the false-twist texturing procedure was more effective especially when thicker filaments were textured. 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M.</creatorcontrib><creatorcontrib>Maíllo, J.</creatorcontrib><creatorcontrib>Cayuela, D.</creatorcontrib><creatorcontrib>Carilla, J.</creatorcontrib><creatorcontrib>Ussman, M.</creatorcontrib><creatorcontrib>Gacén, J.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of thermal analysis and calorimetry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Manich, A. 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| subjects | Analytical Chemistry Applied sciences Chemistry Chemistry and Materials Science Exact sciences and technology Fibers and threads Forms of application and semi-finished materials Inorganic Chemistry Measurement Science and Instrumentation Physical Chemistry Polymer industry, paints, wood Polymer Sciences Technology of polymers |
| title | Effect of the air-jet and the false-twist texturing processes on the thermomechanical behaviour of polyamide 6.6 yarns |
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