Preparation and Characterization of Waterborne Polyurethaneurea Composed of Dimer Fatty Acid Polyester Polyol

Jiang, Lin; Xu, Qiang; Hu, Chun Pu

doi:https://doi.org/10.1155/JNM/2006/14906

Journal of Nanomaterials

On this page

Abstract References Copyright Related Articles

Open Access

Volume 2006 | Article ID 014906 | https://doi.org/10.1155/JNM/2006/14906

Preparation and Characterization of Waterborne Polyurethaneurea Composed of Dimer Fatty Acid Polyester Polyol

Lin Jiang,^1,2Qiang Xu,^1,2and Chun Pu Hu^1,2

Academic Editor: Alan Fuchs

Received09 Nov 2005

Accepted02 Feb 2006

Published27 Apr 2006

Abstract

A series of polyurethaneurea (PUU) aqueous dispersions, which were stable at ambient temperature for more than 1 year, were prepared with C36-dimer-fatty-acid-based polyester polyol, isophorone diisocyanate, dimethylol propionic acid, and ethylenediamine. The particle size of all these PUU (DPU) aqueous dispersions (<100 nm) was less than that of comparable specimens, that is, poly-(neopentyl glycol adipate) polyester-polyol-based PUU (APU) aqueous dispersions, and the polydispersity index was very narrow (≤1.13). The films prepared with the DPU aqueous dispersions exhibited excellent waterproof performance, such as low amount of water absorption (1.3 wt%), and good mechanical properties (hardness and tensile strength), resulting from the strong hydrogen bonding in urea carbonyl groups and the perfect ordered structure of hard segments compared with those prepared with the APU aqueous dispersions. The surface hydrophobicity of the films prepared with modified DPU aqueous dispersions, which were modified with a fluorinated polyacrylate emulsion, was excellent, as the water contact angle on the surface of such films rose up to 100. The mechanical properties of such modified DPU films were further enhanced.

References

B. K. Kim and T. K. Kim, “Aqueous dispersion of polyurethanes from ${\text{H}}_{12}$ MDI, PTAd/PPG, and DMPA: particle size of dispersion and physical properties of emulsion cast films,” Journal of Applied Polymer Science, vol. 43, no. 2, pp. 393–398, 1991.
View at: Google Scholar
Y. M. Lee, J. C. Lee, and B. K. Kim, “Effect of soft segment length on the properties of polyurethane anionomer dispersion,” Polymer, vol. 35, no. 5, pp. 1095–1099, 1994.
View at: Google Scholar
D. J. Hourston, G. Williams, R. Satguru, J. D. Padget, and D. Pears, “Structure-property study of polyurethane anionomers based on various polyols and diisocyanates,” Journal of Applied Polymer Science, vol. 66, no. 10, pp. 2035–2044, 1997.
View at: Google Scholar
Y. S. Hu, Y. Tao, and C. P. Hu, “Polyurethaneurea/vinyl polymer hybrid aqueous dispersions based on renewable material,” Biomacromolecules, vol. 2, no. 1, pp. 80–84, 2001.
View at: Google Scholar
D. Y. Yang, C. P. Hu, and S. K. Ying, “Preparation and characterization of waterborne poly(urethane urea) with well-defined hard segments,” Journal of Polymer Science Part A: Polymer Chemistry, vol. 43, no. 12, pp. 2606–2614, 2005.
View at: Google Scholar
E. Honcoop and E. Appelman, “Polyester polyols for water-resistant polyurethane coatings,” in Proceedings of the 30th International Waterborne, High-Solids, and Power Coatings Symposium, New Orleans, La, USA, February 2003.
View at: Google Scholar
C. C. Yang, Z. B. Zhang, and C. P. Hu, “Water borne PUA modified with fluorinated polyacrylate microemulsion,” China Synthetic Rubber Industry, vol. 28, no. 1, p. 69, 2005.
View at: Google Scholar
F. M. Fowkes, “Attractive forces at interfaces,” Industrial & Engineering Chemistry, vol. 56, no. 12, pp. 40–52, 1964.
View at: Google Scholar
S. H. Wu, Polymer Interface and Adhesion, Marcel Dekker, New York, NY, USA, 1982.
View at: Google Scholar
M. T. Scholz, S. S. Kantner, K. L. Comstock, and C. J. Brown, US Patent: 6,605,666 (2003).
Q. Xu, H. Jing, C. P. Hu, and S. K. Ying, “Particle size and morphology of polyurethaneurea-acrylate aqueous dispersions,” Journal of Functional Polymers, vol. 12, no. 4, pp. 405–408, 1999 (Chinese).
View at: Google Scholar
N. Luo, D.-N. Wang, and S.-K. Ying, “Hydrogen bonding between urethane and urea: band assignment for the carbonyl region of FTi.r. spectrum,” Polymer, vol. 37, no. 14, pp. 3045–3047, 1996.
View at: Google Scholar
Y.-S. Kwak, S.-W. Park, Y.-H. Lee, and H.-D. Kim, “Preparation and properties of waterborne polyurethanes for water-vapor-permeable coating materials,” Journal of Applied Polymer Science, vol. 89, no. 1, pp. 123–129, 2003.
View at: Google Scholar

Copyright

Copyright © 2006 Lin Jiang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

PDF Download Citation Order printed copies