Study on the Performance of Xinjiang Flax Fiber

ABSTRACT

In this paper, the physical and chemical properties of Xinjiang Flax fiber were studied systematically, including mechanical properties by single fiber strength meter, average fineness of single fiber, qualitative and quantitative analysis of chemical composition by infrared spectrophotometer, crystallinity and orientation by X-ray diffractometer, and physical morphology by SEM. The results showed that the main chemical composition and content of Xinjiang Flax fiber were: 1.5969% of fatty wax, 6.6814% of water-soluble matter, 3.5058% of pectin, 17.5510% of hemicellulose and 2.1853% of lignin, the average breaking strength was 228.25cN, the average breaking elongation was 1.04 mm and the average breaking time was 2.09 s, and the average fineness of Xinjiang Flax single fiber was 49.43 μm. The fiber surface is rough and adheres to colloid. The internal molecular structure is relatively close, and the fiber macromolecules are arranged orderly in the crystallization zone, with the crystallinity of 77.5% and the orientation of 91.8%. The above data and analysis provide valuable theoretical basis for the degumming and high-quality yarn spinning of Xinjiang Flax, which is conducive to the further development of Xinjiang Flax.

摘要

本文系统地研究了新疆亚麻纤维的理化性能, 包括单纤维强度, 单纤平均细度等物理性能; 以及化学成分定性定量分析, 结晶度和取向度等 。除此之外, 还对其表面物理形态进行了扫描电镜观察。结果表明, 新疆亚麻纤维的主要化学成分和含量为:脂肪蜡1.5969%, 水溶物6.6814%, 果胶3.5058%, 半纤维素17.5510%, 木质素2.1853%, 平均断裂强力228.25cN, 平均断裂伸长1.04mm, 平均断裂时间2.09s, 平均细度为49.43μm。新疆亚麻纤维表面粗糙, 呈胶状附着。其内部分子结构比较紧密, 纤维大分子有序排列在结晶区, 结晶度为77.5%, 取向度为91.8%。以上数据和分析为新疆亚麻脱胶和优化纺纱工艺提供了有价值的理论依据, 有利于新疆亚麻的进一步发展。

关键词:

• 新疆亚麻纤维
• 化学成分
• 物理性能
• 表征分析

KEYWORDS:

• Xinjiang flax fiber
• chemical composition
• physical properties
• characterization analysis

Acknowledgments

The authors would like to acknowledge the insightful comments from the reviewers during the peer-review process.

Conflicts of Interest

The authors declare no conflict of interest.

Correction Statement

* Equal contributors to this work made by Prof. Zhijiang Li and Prof. Lei Zhang

This article has been republished with minor changes. These changes do not impact the academic content of the article.

Additional information

Funding

This work was funded by the President Foundation of Tarim University [TDZKQN201812, TDZKQN201806].