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首页> 外文期刊>Journal of Applied Polymer Science >The Effect of Hydrolytic and Thermal Degradation on Mechanical Properties of Industrial Polyester Yarns
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The Effect of Hydrolytic and Thermal Degradation on Mechanical Properties of Industrial Polyester Yarns

机译：水解和热降解对工业涤纶纱力学性能的影响

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摘要

For industrial polyester yarns, the study of hydrolytic/thermal degradation is important, because Of the negative influence of these degradations on mechanical properties of polyester yarns. In this research, tensile force at breaking point and elongation at break were used to assess the hydrolytic and thermal degradation of industrial polyester yarns with two draw ratios of 3.5 and 4, which were exposed in water and in oven for 28 days and at different temperatures of T-g, below and above T-g, Totally, the amount of these degradations at temperatures of 70 to 90 degrees C is not high. The investigation shows that tensile strength at breaking point of industrial polyester yarn will decrease in water and in oven at higher temperature; this degradation is lower for yarn with high draw ratio.
机译：对于工业聚酯纱线，水解/热降解的研究很重要，因为这些降解对聚酯纱线的机械性能有负面影响。在这项研究中，使用断裂点的拉伸力和断裂伸长率来评估具有3.5和4两种拉伸比的工业聚酯纱线的水解和热降解性能，将其在水中和烘箱中暴露28天并在不同温度下暴露总的来说，在70至90℃的温度下这些降解的量并不高。研究表明，工业聚酯纱线断裂点的拉伸强度在水中和高温下在烘箱中会降低。对于高拉伸比的纱线，这种降解较低。

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