In Search of Stronger/Cheaper Chitin Nanofibers through Electrospinning of Chitin–Cellulose Composites Using an Ionic Liquid Platform
- Mari Signum, Mid-Atlantic, Rockville, MD (United States)
- Univ. of Alabama, Tuscaloosa, AL (United States)
- Anton Paar USA, Inc., Ashland, VA (United States)
- Univ. of Alabama, Tuscaloosa, AL (United States); 525 Solutions, Inc., Tuscaloosa, AL (United States)
The ability of the ionic liquid (IL) 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc]) to solubilize natural biopolymers (e.g., chitin and cellulose) without any chemical modification has been used to develop a one-pot process to prepare a spinning dope by extracting chitin from shrimp shell, codissolving microcrystalline cellulose (MCC, DP = 270), and electrospinning nanomats from shrimp shell-extract/MCC solutions. The resulting spinning dopes were prepared with optimal viscosity of 380 to 900 cP, and conductivity and surface tension of ~2.8 mS/cm and ~36 dyn/cm, respectively; however, nanofibers could only be prepared when the chitin/MCC ratios in SS-extract/ MCC solution were between 9/1 and 6/4. Compared to nanomats electrospun from shrimp shell-extract solution, 7/3 chitin/MCC composite nanomats demonstrated a 2-fold improvement in hardness and 3-fold improvement in elasticity, although further increases in MCC content resulted in lowering both parameters which nonetheless were higher than the pure chitin nanomats. This one pot process for preparing spinning dopes directly from shrimp shell-extract is a viable method to prepare chitin/MCC composites of improved strength/elasticity at lower costs.
- Research Organization:
- Univ. of Alabama, Tuscaloosa, AL (United States)
- Sponsoring Organization:
- USDOE Office of Nuclear Energy (NE); USDOE Office of Science (SC)
- Grant/Contract Number:
- NE0000672; SC0010152
- OSTI ID:
- 1592746
- Alternate ID(s):
- OSTI ID: 1592750
- Journal Information:
- ACS Sustainable Chemistry & Engineering, Vol. 6, Issue 11; ISSN 2168-0485
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Chitin in ionic liquids: historical insights into the polymer's dissolution and isolation. A review
|
journal | January 2019 |
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Biopolymers
Chitin
Cellulose
Composites
Ionic liquid 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc])
Electrospinning
Nanofibrous mats (nanomats)
Strength
Elasticity
Biopolymers
Chitin
Cellulose
Composites
Ionic liquid 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc])
Electrospinning
Nanofibrous mats (nanomats)
Strength
Elasticity