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Effects of crystal orientation on cellulose nanocrystals-cellulose acetate nanocomposite fibers prepared by dry spinning.
Biomacromolecules. 2014 Oct 13; 15(10):3827-35.B

Abstract

This work presents the development of dry spun cellulose acetate (CA) fibers using cellulose nanocrystals (CNCs) as reinforcements. Increasing amounts of CNCs were dispersed into CA fibers in efforts to improve the tensile strength and elastic modulus of the fiber. A systematic characterization of dispersion of CNCs in the polymer fiber and their effect on the nanocomposites' mechanical properties is described. The birefringence, thermal properties, and degree of CNC orientation of the fibers are discussed. 2D X-ray diffraction was used to quantify the degree of CNC alignment within the fibers. It is shown that the CNC alignment directly correlates to the mechanical properties of the composite. Maximum improvements of 137% in tensile strength and 637% in elastic modulus were achieved. Empirical micromechanical models Halpin-Tsai equation and an orientation modified Cox model were used to predict the fiber performance and compared with experimental results.

Authors+Show Affiliations

School of Chemical Engineering, §School of Materials Engineering, and ∥School of Aeronautics and Astronautics, Purdue University , West Lafayette, Indiana 47907, United States.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

25226382

Citation

Chen, Si, et al. "Effects of Crystal Orientation On Cellulose Nanocrystals-cellulose Acetate Nanocomposite Fibers Prepared By Dry Spinning." Biomacromolecules, vol. 15, no. 10, 2014, pp. 3827-35.
Chen S, Schueneman G, Pipes RB, et al. Effects of crystal orientation on cellulose nanocrystals-cellulose acetate nanocomposite fibers prepared by dry spinning. Biomacromolecules. 2014;15(10):3827-35.
Chen, S., Schueneman, G., Pipes, R. B., Youngblood, J., & Moon, R. J. (2014). Effects of crystal orientation on cellulose nanocrystals-cellulose acetate nanocomposite fibers prepared by dry spinning. Biomacromolecules, 15(10), 3827-35. https://doi.org/10.1021/bm501161v
Chen S, et al. Effects of Crystal Orientation On Cellulose Nanocrystals-cellulose Acetate Nanocomposite Fibers Prepared By Dry Spinning. Biomacromolecules. 2014 Oct 13;15(10):3827-35. PubMed PMID: 25226382.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of crystal orientation on cellulose nanocrystals-cellulose acetate nanocomposite fibers prepared by dry spinning. AU - Chen,Si, AU - Schueneman,Greg, AU - Pipes,R Byron, AU - Youngblood,Jeffrey, AU - Moon,Robert J, Y1 - 2014/09/30/ PY - 2014/9/17/entrez PY - 2014/9/17/pubmed PY - 2015/6/17/medline SP - 3827 EP - 35 JF - Biomacromolecules JO - Biomacromolecules VL - 15 IS - 10 N2 - This work presents the development of dry spun cellulose acetate (CA) fibers using cellulose nanocrystals (CNCs) as reinforcements. Increasing amounts of CNCs were dispersed into CA fibers in efforts to improve the tensile strength and elastic modulus of the fiber. A systematic characterization of dispersion of CNCs in the polymer fiber and their effect on the nanocomposites' mechanical properties is described. The birefringence, thermal properties, and degree of CNC orientation of the fibers are discussed. 2D X-ray diffraction was used to quantify the degree of CNC alignment within the fibers. It is shown that the CNC alignment directly correlates to the mechanical properties of the composite. Maximum improvements of 137% in tensile strength and 637% in elastic modulus were achieved. Empirical micromechanical models Halpin-Tsai equation and an orientation modified Cox model were used to predict the fiber performance and compared with experimental results. SN - 1526-4602 UR - https://www.unboundmedicine.com/medline/citation/25226382/Effects_of_crystal_orientation_on_cellulose_nanocrystals_cellulose_acetate_nanocomposite_fibers_prepared_by_dry_spinning_ L2 - https://doi.org/10.1021/bm501161v DB - PRIME DP - Unbound Medicine ER -