Aromatic polyamide-reinforced regenerated cellulose fiber with low fibrillation and enhanced mechanical properties

IF 4.8 2区工程技术 Q1 MATERIALS SCIENCE, PAPER & WOOD

Cellulose Pub Date : 2026-04-19 DOI:10.1007/s10570-026-07040-0

Xin Huang, Ziang Wang, Yakun Zong, Xichao Liang, Yuanzhang Jiang, Junwen Ren, Lin Tan

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Abstract

The green fabrication of low-fibrillation and multifunctional regenerated cellulose fibers represents a significant yet challenging research frontier. In this study, a novel cellulose/aromatic polyamide (ArPA) composite fiber system was developed to solve the trade-off between the mechanical properties of lyocell-type fibers and the tendency to fibrillate. The composite fibers were prepared by dry-jet wet spinning after co-dissolving cellulose and ArPA spinning solution with a green solvent 1-butyl-3-methylimidazole chloride/1,3-dimethyl-2-imidazolidinone ([Bmim]Cl/DMI) solvent system. The rheological and molecular dynamics (MD) simulation results confirmed the excellent compatibility between cellulose and ArPA. The composite fiber with a 2% addition ratio of ArPA (C/A2) showed significant performance improvement, with a tensile strength of 1.44 cN/dtex (18.6% higher than that of pure cellulose fiber), a crystallinity index of 64.2%, and a significantly low degree of fibrillation (a fibrillation index below 0.1 even after 90 min of sonication). Moreover, C/A2 fiber maintained good dyeability and could be modified with polyhexamethylene guanidine hydrochloride (PHMG) to achieve high antibacterial efficiency. This study provides a green and versatile strategy for overcoming the fibrillation problem in conventional lyocell-type fibers while achieving multifunctionality.

Graphical abstract

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芳香族聚酰胺增强再生纤维素纤维，具有低纤性和增强的机械性能

绿色制造低纤和多功能再生纤维素纤维是一个重要但具有挑战性的研究前沿。在本研究中，开发了一种新型纤维素/芳香族聚酰胺（ArPA）复合纤维体系，以解决lyocell型纤维的力学性能与纤化倾向之间的权衡。以绿色溶剂1-丁基-3-甲基咪唑氯/1,3-二甲基-2-咪唑烷酮（[Bmim]Cl/DMI）为溶剂体系，将纤维素和ArPA纺丝液共溶，采用干喷湿纺丝法制备复合纤维。流变学和分子动力学（MD）模拟结果证实了纤维素与ArPA之间良好的相容性。ArPA （C/A2）添加量为2%的复合纤维性能得到显著改善，抗拉强度为1.44 cN/dtex，比纯纤维素纤维提高18.6%，结晶度为64.2%，纤颤度明显降低（超声处理90 min后纤颤指数仍低于0.1）。此外，C/A2纤维保持了良好的可染性，并且可以用盐酸聚六亚甲基胍（PHMG）改性，达到较高的抗菌效果。该研究为克服传统lyocell型纤维的纤颤问题提供了一种绿色和通用的策略，同时实现了多功能。图形抽象此图像的替代文本可能是使用AI生成的。

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来源期刊

Cellulose 工程技术-材料科学：纺织

CiteScore

10.10

自引率

10.50%

发文量

580

审稿时长

3-8 weeks

期刊介绍： Cellulose is an international journal devoted to the dissemination of research and scientific and technological progress in the field of cellulose and related naturally occurring polymers. The journal is concerned with the pure and applied science of cellulose and related materials, and also with the development of relevant new technologies. This includes the chemistry, biochemistry, physics and materials science of cellulose and its sources, including wood and other biomass resources, and their derivatives. Coverage extends to the conversion of these polymers and resources into manufactured goods, such as pulp, paper, textiles, and manufactured as well natural fibers, and to the chemistry of materials used in their processing. Cellulose publishes review articles, research papers, and technical notes.