Superbase-based ionic liquids (ILs) have demonstrated excellent dissolution capability for cellulose, and employing the dry-jet wet spinning process, high-tenacity regenerated textile fibers have been made. Among a range of superbase-based ILs, [mTBDH][OAc] exhibited not only good spinnability but also exceptional recyclability, making it highly suitable for a closed-loop production of regenerated cellulose fibers. To further optimize the spinning process, we investigated the influence of the cellulosic raw materials and the IL with residual water on spinnability and fiber properties. In addition, single-filament spinning and multifilament spinning using spinnerets with different hole densities were investigated to reveal the upscaling challenges of the dry-jet wet spinning process. The air gap conditions, for example, temperature and moisture concentration were simulated using COMSOL multiphysics. The results indicate that the presence of a small amount of water (3 wt%) in the IL has a positive effect on spinnability, while the mechanical properties of the fibers remain unchanged.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10515369 | PMC |
| http://dx.doi.org/10.1021/acsomega.3c05133 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Structure and properties of the cellulose fibres spun from imidazolium-based carboxylate functionalized zwitterionic liquid.
Carbohydr Polym
January 2025
Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, Maharashtra, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India. Electronic address:
Dissolution of cellulose without further derivatization has been an active area of research in recent years. There are still challenges in developing a commercially viable solvent system for the dissolution and regeneration of cellulose as films and fibres. We report here a process for making cellulose fibres through the dry-jet wet spinning method by utilizing aqueous zwitterionic liquid (ZIL), viz.
View Article and Find Full Text PDFPreparation of Lyocell Fibers from Solutions of Miscanthus Cellulose.
Polymers (Basel)
October 2024
LLC "NTC Biotechcomposite-Dulevo", Lenina Street 15/1, 142670 Likino-Dulovo, Russia.
Both annual (cotton, flax, hemp, etc.) and perennial (trees and grasses) plants can serve as a source of cellulose for fiber production. In recent years, the perennial herbaceous plant miscanthus has attracted particular interest as a popular industrial plant with enormous potential.
View Article and Find Full Text PDFEnhancing the Mechanical Properties of Regenerated Cellulose through High-Temperature Pre-Gelation.
Materials (Basel)
October 2024
CAS Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 Taoyuan South Road, Taiyuan 030001, China.
This paper investigates the effects of pre-gelation on cellulose dissolved in LiCl/DMAc solutions to enhance the properties of regenerated cellulose materials. This study focuses on characterizing the crystallinity, molecular orientation, and mechanical performance of cellulose fibers and hydrogels prepared with and without pre-gelation treatment. X-ray diffraction (XRD) analysis reveals that crystallinity improvement from 55% in untreated fibers to 59% in fibers pre-gelled for 3 and 7 days, indicating a more ordered arrangement of cellulose chains post-regeneration.
View Article and Find Full Text PDFCoaxial Layered Fiber Spinning for Wind Turbine Blade Recycling.
ACS Sustain Chem Eng
February 2024
Mechanical Engineering, College of Engineering, University of Georgia (UGA), 302 E. Campus Rd., Athens ,Georgia30602,United States.
Plastics' long degradation time and their role in adding millions of metric tons of plastic waste to our oceans annually present an acute environmental challenge. Handling end-of-life waste from wind turbine blades (WTBs) is equally pressing. Currently, WTB waste often finds its way into landfills, emphasizing the need for recycling and sustainable solutions.
View Article and Find Full Text PDFHigh-Quality Cellulosic Fibers Engineered from Cotton-Elastane Textile Waste.
Biomacromolecules
March 2024
Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Espoo 02150, Finland.
Even small amounts of elastane in cotton-elastane blended textiles can prevent fiber-to-fiber recycling strategies in textile recycling. Herein, the selective separation of elastane from cotton blends was addressed by the aminolytic degradation of the synthetic component. Polar aprotic solvents were tested as elastane solvents, but side reactions impeded aminolysis with some of them.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!