Influence of cross-section shape on structure and properties of Lyocell fibers

Zhang, Huihui; Shen, Yifeng; Edgar, Kevin J.; Yang, Gesheng; Shao, Huili

doi:10.1007/s10570-020-03605-9

Cited by 22 publications

(10 citation statements)

References 31 publications

(29 reference statements)

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“…Compared with the literature, the mechanical properties of the RCFs are good (Table S1). ,− Therefore, the mechanical properties of RCFs can then be tuned by changing the composition of the coagulation bath or spinning solution.…”

Section: Resultsmentioning

confidence: 99%

Effects of Glucose and Coagulant on the Structure and Properties of Regenerated Cellulose Fibers

et al. 2023

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Regenerated cellulose fiber (RCF) is an environmentally friendly material with outstanding mechanical properties and recyclability, which has been used in a large number of applications. However, during the spinning process using ionic liquids (ILs) as solvents, the dissolved cellulose continues to degrade and even produces degradation products such as glucose, which can enter the recycled solvent and coagulation bath. The presence of glucose can seriously affect the performance of the produced RCFs and hinder their applications, so it has become critical to clarify the regulation and mechanism of this process. In this study, 1-ethyl-3-methylimidazolium diethyl phosphate ([Emim]DEP) with different glucose contents was selected to dissolve wood pulp cellulose (WPC) and obtained RCFs in different coagulation baths. The effect of glucose content in spinning solution on fiber spinnability was investigated by rheological analysis, and the influence of coagulation bath composition and glucose content on the morphological characteristics and mechanical properties of the RCFs was also studied in depth. The results indicated that the morphology, crystallinity, and orientation factor of RCFs were influenced by the presence of glucose in the spinning solution or coagulation bath, resulting in corresponding changes in mechanical properties, which can provide practical reference and guidance for the industrial production of new type fiber.

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Section: Resultsmentioning

confidence: 99%

Effects of Glucose and Coagulant on the Structure and Properties of Regenerated Cellulose Fibers

et al. 2023

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“…It is reported that profiled Lyocell fibers with "H" and Y" cross-sections have higher moisture regain than Lyocell fibers with circular cross-section. 33 The fabrics knitted with DTY and FDY multifilaments have similar WVTRs (Figure 12 (b)). The water vapor permeability of PLAþ fabric is even better than that of PETþ fabric (Figure 12(c)).…”

Section: Water Vapor Transmissionmentioning

confidence: 93%

Sustainable profiled poly(lactic acid) multifilaments with high moisture management performance for textiles

Yang

Tam

et al. 2022

Textile Research Journal

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Sustainable poly(lactic acid) multifilaments are a new type of biodegradable fibers that have gained increasing attention in textile product development. However, low moisture management performance has hindered their application in high added-value textile products such as functional garments and sportswear. In this work, profiled poly(lactic acid) multifilaments with “+” cross-section and “Y” cross-section were developed by the melt spinning process in order to improve their moisture management properties. The cross-sectional and longitudinal morphologies of the produced profiled poly(lactic acid) multifilaments were first examined and their non-circularity degrees were calculated. The moisture-absorbing and fast-drying properties of both the poly(lactic acid) multifilaments and knitted fabrics, including vertical wicking, in-plane wicking, water absorption and evaporation, and water vapor transmission were then evaluated, and the effects of fiber cross-section shape and yarn texturing were analyzed. The results show that the moisture management performances of the knitted fabrics made with profiled poly(lactic acid) multifilaments are significantly improved when compared with those of the fabric made with circular cross-section poly(lactic acid) multifilaments. The results also show that moisture management performances of the knitted fabrics made with profiled poly(lactic acid) multifilaments are comparable or even better than those of the fabrics made of polyester multifilaments. The study suggests that poly(lactic acid) fibers can be applied for the development of textile products with high added value and substitute the large amounts of petroleum-based PET fiber in apparel end-use.

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“…Lyocell fiber is a new type of renewable cellulose fiber; its production process is simpler and almost pollution-free compared with that of traditional viscose fiber. [37][38][39] In the past, there are a large number of studies on the blending of viscose/ lyocell fiber and Ca-alg fiber, but most of them are in the field of nonwovens and fiber bundles, 27,35 there is still a lack of research in papermaking. Different from nonwovens and fiber bundles, fibers are denser in paper, and whether there is interaction between viscose/lyocell fiber and seaweed fiber in paper needs further study.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the flame‐retardant effect of FRV and Ca‐Alg blend fiber in gas phase is worthy of further study. Lyocell fiber is a new type of renewable cellulose fiber; its production process is simpler and almost pollution‐free compared with that of traditional viscose fiber 37–39 . In the past, there are a large number of studies on the blending of viscose/lyocell fiber and Ca‐alg fiber, but most of them are in the field of nonwovens and fiber bundles, 27,35 there is still a lack of research in papermaking.…”

Section: Introductionmentioning

confidence: 99%

Smoldering suppression and synergistic effect of alginate fiber‐based composite paper by flame‐retardant lyocell fiber

Tian

et al. 2021

J of Applied Polymer Sci

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The application of traditional cellulosic paper is limited because of its flammability, so it is necessary to explore new materials that can be used in the field of flame-retardant paper. Based on the synergistic effect between fibers, flameretardant lyocell (FRL) and calcium alginate (FRL/Ca-Alg) composite paper is prepared by a simple but efficient method. The thermal degradation process of the composite paper is analyzed by thermogravimetric (TG) and TG analysis coupled with Fourier transform infrared, the flame retardancy of the composite paper is analyzed by vertical flammability (VF) tests, limiting oxygen index test and cone calorimetry test, and the morphology of the residue after VF tests is observed by scanning electron microscopy. It is found that, the Ca-Alg releases a large amount of CO 2 before ignited, which delayed the ignited time of the composite paper; FRL reduces the effective combustion heat of composite paper during combustion, and the compact char formed by FRL effectively inhibits the smoldering of Ca-Alg in the end stage of combustion. Based on these, the synergistic flame-retardant effect of composite paper is proposed.

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Influence of cross-section shape on structure and properties of Lyocell fibers

Cited by 22 publications

References 31 publications

Effects of Glucose and Coagulant on the Structure and Properties of Regenerated Cellulose Fibers

Effects of Glucose and Coagulant on the Structure and Properties of Regenerated Cellulose Fibers

Sustainable profiled poly(lactic acid) multifilaments with high moisture management performance for textiles

Smoldering suppression and synergistic effect of alginate fiber‐based composite paper by flame‐retardant lyocell fiber

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