Measurement of crystallinity and crystal orientation of polyester industrial yarns by 2-D X-ray diffraction

被引：0

作者：

Ge C. ^{[1
]}

Lü W. ^{[1
]}

Shi J. ^{[2
]}

Xu T. ^{[1
]}

Chen S. ^{[1
]}

Li N. ^{[1
]}

Chen W. ^{[1
]}

机构：

[1] National Engineering Lab for Textile Fiber Materials and Processing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang

[2] Zhejiang Guxiandao Industrial Fiber Co., Ltd., Shaoxing, 312000, Zhejiang

来源：

Fangzhi Xuebao/Journal of Textile Research | 2018年 / 39卷 / 03期

关键词：

2-D X-ray diffraction; Crystallinity; Orientation; Polyester industrial yarn;

D O I：

10.13475/j.fzxb.20170600807

中图分类号：

学科分类号：

摘要：

In order to establish the relationship between the microstructure and mechanical properties of polyester industrial yarns, it is very important to develop an effective test method. Two-dimensional X-ray diffraction method was used to study the crystallinity, crystal orientation and its relationship with the properties of polyester industrial yarns, including high tenacity type (HT), low shrinkage type (LS) and super low shrinkage type (SLS). The results show that the SLS with maximal crystallinity, maximal grain size and minimum orientation is the smallest in dry heat shrinkage ratio and the best in dimension stability. Additionally, the largest breaking strength and the minimum elongation at break of the HT are ascribed to its minimum crystallinity, minimum grain size and maximal orientation. Accordingly, it can be concluded that the crystallinity and grain size mainly influence the dry heat shrinkage ratio of polyester industrial yarns, and the crystal orientation mainly influence the breaking strength, elongation at break and elastic modulus of the fibers. Copyright No content may be reproduced or abridged without authorization.

引用

页码：19 / 25

页数：6

共 16 条

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