Stretch-Induced Crystallization of Cellulose Spun from Ionic Liquid Solution

Diao, Huailing; Song, Guang-Jing; Wu, Jin; Zheng, Xuejing; Zhang, Jun

doi:10.1021/acs.biomac.1c01553

Cited by 15 publications

(11 citation statements)

References 41 publications

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“…According to the previous test results, the addition of glucose may interfere with the crystallization of RCFs, resulting in more amorphous regions in the RCFs. The CrI and orientation factor of the RCFs containing glucose are relatively low, and the cross section of RCFs is depressed inward, which affect the mechanical properties of RCFs. , The breaking strength of all RCFs remains at about 350–420 MPa, and the breaking elongation is 15–27%. Compared with the literature, the mechanical properties of the RCFs are good (Table S1).…”

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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“…The scanning speed was 5°/min. Two-dimensional (2D) X-ray diffraction measurement was performed on a Xenocs Xeuss 2.0 instrument with a Cu Kα radiation source (λ = 1.54 Å) and a 2D detector (Pilatus 300 K, pixel size 172 μm) in virtual detector mode . Small-angle X-ray scattering (SAXS) was recorded also on a Xenocs Xeuss 2.0 SAXS System with λ Cu = 1.54 Å.…”

Section: Methodsmentioning

confidence: 99%

“…Two-dimensional (2D) X-ray diffraction measurement was performed on a Xenocs Xeuss 2.0 instrument with a Cu Kα radiation source (λ = 1.54 Å) and a 2D detector (Pilatus 300 K, pixel size 172 μm) in virtual detector mode. 26 Small-angle X-ray scattering (SAXS) was recorded also on a Xenocs Xeuss 2.0 SAXS System with λ Cu = 1.54 Å. The sample-todetector distance was 2508 mm, and the calibration was performed with a silver behenate (AgC 22 H 43 O 2 ) standard.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Tough and Strong All-Biomass Plastics from Agricultural and Forest Wastes via Constructing an Aggregate of Hydrogen-Bonding Networks

Xia

et al. 2023

ACS Sustainable Chem. Eng.

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The development of all-biomass materials to replace conventional plastics has been gradually becoming a focus. However, all-biomass plastics, especially those fabricated from agricultural and forestry wastes, have the obstacles of poor formability and/or low toughness. Herein, we demonstrated a facile, efficient, and easy-to-scale method to significantly improve the formability and toughness of biomass materials via constructing an aggregate of hydrogen-bonding networks, where the relatively weak hydrogen bonding could be sacrificed during stretching. After a continuous preparation process that combined a paper-making process with an in situ welding process, the regenerated cellulose material with a layered microstructure was spontaneously formed. The interlayer hydrogen-bonding interactions could dissipate energy during stretching. As a result, the cellulose plastics were tough and strong. The tensile strength, strain, and toughness reached 154.9 MPa, 57.7%, and 81.76 MJ/m3, respectively, which were markedly higher than those of previous cellulose-based materials. The corresponding cellulose hydrogel exhibited an excellent strength of 9.5 MPa and a high strain of 171.4% also. During this scalable process, a 1-ethyl-3-methylimidazolium acetate (EmimAc) aqueous solution worked as a dispersant and a solvent, and a high solid content of cellulose/EmimAc (20 wt %) was used. Based on such an effective method, various agricultural and forestry wastes, including corn straw, wheat straw, grass, and wood powder, could be directly processed into high-tough all-biomass films, indicating a huge potential in ecofriendly materials, environmental protection, and bioresource utilization.

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“…[ 73 ] Zhang et al. [ 74 ] prepared cellulose fibers with high‐strength by dissolving cellulose in 1‐ethyl‐3‐methylimidazolium acetate (EmimAc) and induced the formation of cellulose II hydrate fibers by regulating the draw ratio. Thus, the mechanical properties of fibers can be highly improved.…”

Section: Non‐derivative Organic Solvent Systemsmentioning

confidence: 99%

Recent Progress in Regenerated Cellulose Fibers by Wet Spinning

Shen

Sun

Zhou

2023

Macro Materials & Eng

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Cellulose is the most abundant and “green” biomass resource on earth and gains tremendous attention. It is expected to become an alternative for traditional chemical and petroleum resources. This review describes the traditional solvents used for industrial processes, the non‐derivative organic solvents, and the aqueous solution systems, along with their dissolution mechanisms and development of fiber‐spinning processes. The problems associated with the industrial production of viscose fibers and cuprammonium fibers are also discussed. This paper focuses on the research status of regenerated cellulose fibers (RCFs) prepared with green and no‐pollution aqueous solutions and provides some effective strategies and methods for improving the mechanical strength of RCFs and promoting the implementation of industrial production. Lastly, the current developments of RCFs are summarized and prospected and it would serve as a guide for the developmental trend and research direction of RCFs in the future.

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Stretch-Induced Crystallization of Cellulose Spun from Ionic Liquid Solution

Cited by 15 publications

References 41 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

Tough and Strong All-Biomass Plastics from Agricultural and Forest Wastes via Constructing an Aggregate of Hydrogen-Bonding Networks

Recent Progress in Regenerated Cellulose Fibers by Wet Spinning

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