期刊
POLYMER
卷 123, 期 -, 页码 55-64出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2017.06.034
关键词
Dynamic crosslinking spinning; Nanocomposite hydrogel fiber; Cellulose nanocrystals
资金
- National Key Research and Development Program of China [2016YFA0201702/2016YFA0201700]
- Project of Shanghai International Science and Technology Cooperation Fund [14520710200]
- SusChEM Program of National Science Foundation [DMR-1409507]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1409507] Funding Source: National Science Foundation
Advances in hydrogel design are yielding new hydrogel materials with diverse macroscopic topological structures. Among these, hydrogel fibers have been considered as a new class of hydrogel material with unique spatiotemporal properties. In this study, based on the novel non-template dynamic-crosslinking-spinning (DCS) method which has been demonstrated for scalable fabrication of size-controllable hydrogel fibers from oligomers, the method involved the use of one-step production of nanocomposite hydrogel fiber with weakly-gelled nanoparticle/oligomer (cellulose nanocrystals/poly(ethylene glycol) diacrylate, CNC/PEGDA) dispersion, where the interparticle interactions between CNC dominate the rheological property. The weakly-gelled CNC/PEGDA dispersion exhibited viscoelastic and shear thinning behavior, where continuous and uniform CNC/PEGDA hydrogel fibers were successfully fabricated by controllable extrusion. The diameter and water retention of the fibers could be controlled by the CNC content and spinning parameters. In addition, mechanical properties of the fiber were found to increase in the presence of CNC. (C) 2017 Elsevier Ltd. All rights reserved.
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