Abstract
The goal of this study was to align cellulose nanowhiskers in a polymer using a strong magnetic field and thereby obtain a unidirectional reinforced nanocomposite. Cellulose whiskers (2 wt. %) were incorporated in a polyvinyl alcohol matrix using solution casting with water as the solvent. The suspension was cast and the water was evaporated while a homogeneous magnetic field of 7 T was applied. Different microscopy investigations of prepared nanocomposites indicated that the cellulose whiskers were oriented perpendicular to the direction of the magnetic field. Dynamic mechanical thermal analysis further strengthened the idea of alignment because the results showed that the dynamic modulus of the nanocomposite was around 2 GPa higher at room temperature in the aligned direction compared to the transverse direction.
Similar content being viewed by others
References
M.A.S.A. Samir, F. Alloin, A. Dufresne, Biomacromolecules 6, 612 (2005)
A. Dufresne, J. Nanosci. Nanotechnol. 6, 322 (2006)
K. Tashiro, M. Kobayashi, Polymer 32, 1516 (1991)
J. Araki, M. Wada, S. Kuga, T. Okano, Colloids Surf. A 142, 75 (1998)
J.F. Revol, H. Bradford, J. Giasson, R.H. Marchessault, D.G. Gray, Int. J. Biol. Macromol. 14, 170 (1992)
I. Kvien, B.S. Tanem, K. Oksman, Biomacromolecules 6, 3160 (2005)
J. Sugiyama, H. Chanzy, G. Maret, Macromolecules 25, 4232 (1992)
N. Yoshiharu, K. Shigenori, W. Masahisa, O. Takeshi, Macromolecules 30, 6395 (1997)
D. Bordel, J.L. Outaux, L. Heux, Langmuir 22, 4899 (2006)
D. Bondeson, A. Mathew, K. Oksman, Cellulose 13, 171 (2006)
L.C. Sawyer, D.T. Grubb, Polymer Microscopy (Chapman and Hall, London, 1994)
Author information
Authors and Affiliations
Corresponding author
Additional information
PACS
81.05.Lg; 81.05.Qk; 82.35.Np
Rights and permissions
About this article
Cite this article
Kvien, I., Oksman, K. Orientation of cellulose nanowhiskers in polyvinyl alcohol. Appl. Phys. A 87, 641–643 (2007). https://doi.org/10.1007/s00339-007-3882-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00339-007-3882-3