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Título: | Thermomechanical analysis of merino wool yarns |
Autor: | Carilla Auguet, Josep CSIC; Vílchez, Susana CSIC ORCID; Castellar Bertrán, María Dolors de CSIC; Oller, P.; Erra Serrabasa, Pilar CSIC; Manich, Albert M. CSIC ORCID CVN | Palabras clave: | Bilateral structure Denaturation DSC Merino wool TG TMA |
Fecha de publicación: | sep-2005 | Editor: | Springer Nature | Citación: | Journal of Thermal Analysis and Calorimetry 82(1): 119-123 (2005) | Resumen: | There is a difference in structure across the wool fibre which is usually referred to as bilateral. The endothermic denaturation doublet of keratins has been observed by different authors for a variety of keratins and measuring conditions and mainly interpreted by different theories. Merino wool yarns have been analyzed by the thermomechanical analysis and at low stress two thermal transitions before melting have been identified. These two thermal transitions are in accordance with the onset temperatures of the denaturation doublet shown by the DSC both at temperatures lower than the thermal degradation temperature determined by TG. The DSC of fibrillated fibres by abrasion showed not a denaturation doublet but just only a denaturation peak. The two transitions of the TMA and the modification of the DSC curve by abrasion seems to confirm that abrasion removes the component which denaturates at lower temperature. | Descripción: | 5 pages, 4 figures, 2 tables.-- Available online Jan 11, 2006. | Versión del editor: | http://dx.doi.org/10.1007/s10973-005-0851-y | URI: | http://hdl.handle.net/10261/16064 | DOI: | 10.1007/s10973-005-0851-y | ISSN: | 1388-6150 | E-ISSN: | 1572-8943 |
Aparece en las colecciones: | (IQAC) Artículos |
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