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首页> 外文期刊>Journal of Applied Polymer Science >Structure-mechanical properties relationship of poly(ethylene terephthalate) fibers
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Structure-mechanical properties relationship of poly(ethylene terephthalate) fibers

机译：聚对苯二甲酸乙二酯纤维的结构力学性能关系

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摘要

The correlation between the fiber structure and mechanical properties of two different poly(ethylene terephthalate) fiber types, that is, wool and cotton types produced by three producers, was studied. Fiber structure was determined using different analytical methods. Significant differences in the suprastructure of both types of conventional textile fibers were observed, although some slight variations in the structure existed between those fibers of the same type provided by different producers. A better-developed crystalline structure composed of bigger, more perfect, and more axially oriented crystallites was characterized for the cotton types of PET fibers. Crystallinity is higher, long periods are longer, and amorphous domains inside the long period cover bigger parts in this fiber type in comparison with the wool types of fibers. In addition, amorphous and average molecular orientation is higher. The better mechanical properties of cotton PET fiber types, as demonstrated by a higher breaking tenacity and modulus accompanied by a lower breaking elongation, are due to the observed structural characteristics. (C) 2003 Wiley Periodicals, Inc. [References: 31]
机译：研究了两种生产商生产的两种不同聚对苯二甲酸乙二醇酯纤维，即羊毛和棉的纤维结构与机械性能之间的相关性。使用不同的分析方法确定纤维结构。观察到两种常规纺织纤维的表面结构有显着差异，尽管不同生产商提供的相同类型的那些纤维之间在结构上存在一些细微变化。棉花类型的PET纤维具有由更大，更完美和更轴向取向的微晶组成的更好发展的晶体结构。与羊毛类型的纤维相比，这种纤维类型的结晶度更高，长时间更长，并且长时间内的无定形区域覆盖了更大的部分。另外，无定形和平均分子取向较高。较高的断裂强度和模量以及较低的断裂伸长率表明，棉PET纤维类型具有更好的机械性能，这是由于观察到的结构特征所致。 （C）2003 Wiley Periodicals，Inc. [参考：31]

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