Journal
BIOMACROMOLECULES
Volume 12, Issue 3, Pages 831-836Publisher
AMER CHEMICAL SOC
DOI: 10.1021/bm101510r
Keywords
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Funding
- New Energy and Industrial Technology Development Organization (NEDO), Japan
- Grants-in-Aid for Scientific Research [22245026] Funding Source: KAKEN
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Cellulose nanofibers were prepared by TEMPO-mediated oxidation of wood pulp and tunicate cellulose. The cellulose nanofiber suspension in water was spun into an acetone coagulation bath. The spinning rate was varied from 0.1 to 100 m/min to align the nanofibers to the spun fibers. The fibers spun from the wood nanofibers had a hollow structure at spinning rates of > 10 m/min, whereas the fibers spun from tunicate nanofibers were porous. Wide-angle X-ray diffraction analysis revealed that the wood and tunicate nanofibers were aligned to the fiber direction of the spun fibers at higher spinning rates. The wood spun fibers at 100 m/min had a Young's modulus of 23.6 GPa, tensile strength of 321 MPa, and elongation at break of 2.2%. The Young's modulus of the wood spun fibers increased with an increase in the spinning rate because of the nanofiber orientation effect.
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