Dynamic Mechanical Analysis of Nylon 66 Cord Yarns
Research and development
Authors:
- Demšar Andrej
Department of Textiles, Faculty of Natural Science and Engineering, University of Ljubljana, Ljubljana, Slovenia - Bukošek Vili (j/w)
- Kljun Alenka (j/w)
 Full text | Abstract: The viscoelastic properties of three different nylon cord yarns were analysed, and the dependence on the temperature of the annealing process was examined with the use of dynamic mechanical analysis (DMA). The research showed that the initial moduli of temperature-treated nylon cord yarns in a clamped state decrease after temperature treatment. The results also demonstrated that it is recommended to perform the vulcanisation of rubber composites at temperatures between 160 °C and 180 °C, where segmental motion is at minima. Likewise, it is not recommended to mechanically load cord yarns between 90 °C to 130 °C. This study demonstrated that DMA can be used to analyse the viscoelastic properties of cord yarns, which enables us to detect subtle differences between different materials and to interpret changes in the material at a supermolecular level. DMA can aid in determining optimal process conditions and materials. |
Tags: nylon, cord yarns, dynamic mechanical analysis, viscoelastic properties.
Citation: Demšar A., Bukošek V., Kljun A.; Dynamic Mechanical Analysis of Nylon 66 Cord Yarns. FIBRES & TEXTILES in Eastern Europe 2010, Vol. 18, No. 4 (81) pp. 29-34.