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Nanostructurally Controlled Hydrogel Based on Small‐Diameter Native Chitin Nanofibers: Preparation, Structure, and Properties
- Source :
- Chemsuschem, ResearcherID
- Publication Year :
- 2016
- Publisher :
- John Wiley and Sons Inc., 2016.
-
Abstract
- Chitin nanofibers of unique structure and properties can be obtained from crustacean and fishery waste. These chitin nanofibers have roughly 4 nm diameters, aspect ratios between 25–250, a high degree of acetylation and preserved crystallinity, and can be potentially applied in hydrogels. Hydrogels with a chitin nanofiber content of 0.4, 0.6, 0.8, 1.0, 2.0, and 3.0 wt % were successfully prepared. The methodology for preparation is new, environmentally friendly, and simple as gelation is induced by neutralization of the charged colloidal mixture, inducing precipitation and secondary bond interaction between nanofibers. Pore structure and pore size distributions of corresponding aerogels are characterized using auto‐porosimetry, revealing a substantial fraction of nanoscale pores. To the best of our knowledge, the values for storage (13 kPa at 3 wt %) and compression modulus (309 kPa at 2 wt %) are the highest reported for chitin nanofibers hydrogels.
- Subjects :
- Materials science
Small diameter
Compressive Strength
General Chemical Engineering
Chitin
02 engineering and technology
010402 general chemistry
01 natural sciences
chemistry.chemical_compound
nanofibers
Polymer chemistry
Environmental Chemistry
General Materials Science
Porosity
Full Paper
Molecular Structure
Hydrogels
Full Papers
021001 nanoscience & nanotechnology
compression
0104 chemical sciences
General Energy
Chemical engineering
chemistry
Nanofiber
Self-healing hydrogels
rheology
hydrogel
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 1864564X and 18645631
- Volume :
- 9
- Issue :
- 9
- Database :
- OpenAIRE
- Journal :
- Chemsuschem
- Accession number :
- edsair.doi.dedup.....d28d9a3689978a10a1c89162da2780ae