Fabricating multifunctional lyocell fabric with cationic nanospheres: enhanced anti-fibrillation, with no strength loss, and green dyeability

IF 4.8 2区 工程技术 Q1 MATERIALS SCIENCE, PAPER & WOOD
Xinchang Ge, Kuanjun Fang, Lei Fang, Longxue Zhang, Hanyu Li, Hongguo Gao, Wei Bao
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Abstract

Sustainable lyocell fiber is widely used to manufacture various high-end low carbon and green textile products. However, fibrillation usually occurred during wet processing, causing severe pilling and poor appearance. The current anti-fibrillation methods still suffer from strength loss or unsatisfactory anti-fibrillation performance, and the functional modification of lyocell fibers is generally a distinct processing stage, which causes more water consumption. The present study reported a new strategy for fabricating multifunctional lyocell textiles using cationic P(St-BA-DMC) nanospheres with an average diameter of 90.9 nm and zeta potential of + 49.4 mV. The nanospheres were adsorbed on the negatively charged lyocell fiber surfaces through electrostatic forces when the fibers were treated with the nanosphere suspension. FTIR, SEM, and XPS revealed that when cured at 150 °C, the core–shell-structure nanospheres on the fibers spread into dot membranes like frying eggs, which made the fiber much more hydrophobic through the lotus effect. As a result, the fiber swelling rate reduced from 23.7% to 7%, while the bursting strength of the knitted fabric was not changed significantly. The air permeability at the wet state increased by 30.5% compared to the original fabric. Additionally, the treated fabric’s antibacterial rate against S. aureus reached 97%. The lyocell fabric was endowed with anti-fibrillation, higher air permeability, and anti-bacterial functions without significant strength loss. Moreover, the dyeability of treated fabric was greatly enhanced. This work provides a new strategy for the anti-fibrillation and functionalization of low-carbon lyocell textiles.

用阳离子纳米球制备多功能莱赛尔织物:增强抗纤性,无强度损失,绿色可染性
可持续莱赛尔纤维被广泛用于制造各种高端低碳和绿色纺织产品。然而,纤颤通常发生在湿法加工过程中,造成严重的起球和不良外观。目前的抗颤方法仍然存在强度损失或抗颤性能不理想的问题,并且lyocell纤维的功能修饰通常是一个不同的加工阶段,这导致了更多的水消耗。本文报道了一种利用平均直径为90.9 nm、zeta电位为+ 49.4 mV的阳离子P(St-BA-DMC)纳米球制备多功能lyocell纺织品的新策略。经纳米球悬浮液处理后,纳米球通过静电力吸附在带负电荷的莱赛尔纤维表面。FTIR、SEM和XPS表明,在150°C下固化后,纤维上的核壳结构纳米球像煎蛋一样扩散成点状膜,通过荷花效应使纤维具有更强的疏水性。结果表明,纤维膨胀率由23.7%降低到7%,而针织物的破裂强度变化不明显。湿态透气性比原面料提高30.5%。此外,经过处理的织物对金黄色葡萄球菌的抗菌率达到97%。lyocell织物具有抗颤、高透气性和抗菌功能,且强度损失不明显。处理后织物的可染性大大提高。这项工作为低碳莱赛尔纺织品的抗纤和功能化提供了新的策略。
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来源期刊
Cellulose
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.
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