## Abstract Novel cellulose hydrogels were synthesized through a โoneโstepโ method from cellulose, which was dissolved directly in NaOH/urea aqueous solution, by using epichlorohydrin as crosslinker. Structure and properties of the hydrogels were characterized by using SEM, NMR, and water absorptio
Novel Fibers Prepared from Cellulose in NaOH/Urea Aqueous Solution
โ Scribed by Jie Cai; Lina Zhang; Jinping Zhou; Hao Li; Hui Chen; Huiming Jin
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 229 KB
- Volume
- 25
- Category
- Article
- ISSN
- 1022-1336
No coin nor oath required. For personal study only.
โฆ Synopsis
Abstract
Summary: Novel regenerated cellulose fibers have been successfully spun from the cellulose dope in NaOH/urea aqueous solution, which could rapidly dissolve cellulose. The fibers possess circular crossโsections as well as relatively high molecular weight, and a crystallinity index with cellulose II family crystal structure, leading to good mechanical properties. This technology is simple, cheap, and environmentally friendly, promising to substitute for viscose rayon production having hazardous byproducts.
SEM micrograph of the crossโsection of the novel cellulose fibers generated here.
imageSEM micrograph of the crossโsection of the novel cellulose fibers generated here.
๐ SIMILAR VOLUMES
## Abstract Celluloseโbased fibers were prepared by electrospinning from cellulose dissolved in NaOH/urea in the presence of a small amount of polyol binders. The asโspun products were examined with SEM. Pure cellulose solution did not produce fibrous materials, because it often formed spherical na
## Abstract Regenerated cellulose/chitin blend films (RCCH) were satisfactorily prepared in 6 wt % NaOH/4 wt % urea aqueous solution by coagulating with 5 wt % CaCl~2~ aqueous solution then treating with 1 wt % HCl. The structure, miscibility, and mechanical properties of the RCCH films were invest
## Abstract **Summary:** Cellulose was dissolved rapidly in a NaOH/thiourea aqueous solution (9.5:4.5 in wt.โ%) to prepare a transparent cellulose solution, which was employed, for the first time, to spin a new class of regenerated cellulose fibers by wet spinning. The structure and mechanical prop
## Abstract **Summary:** Rapid dissolution of cellulose in LiOH/urea and NaOH/urea aqueous solutions was studied systematically. The dissolution behavior and solubility of cellulose were evaluated by using ^13^C NMR, optical microscopy, wideโangle Xโray diffraction (WAXD), FTโIR spectroscopy, DSC,