Properties of High Solid Content UV Curable Waterborne Polyurethane Dispersions with Different C=C Content

Article Preview

Abstract:

Ultraviolet (UV) curable waterborne polyurethane(WPU) dispersions based on isophorone diisocyanate(IPDI), polypropylene glycol(PPG), dimethylolproprionic acid(DMPA) and pentaerythritol triacrylate(PETA) were prepared by the conventional method of anionic aqueous polyurethane dispersions. The structure of the ultraviolet (UV) curable WPU dispersions was studied by FT-IR. Stability, dispersion particle size and zeta-potential of the WPU dispersions were characterized. Effect of temperature on viscosity of the dispersions with different C=C content was also investigated. Results showed that all UV curable WPU dispersions had high solid content (48wt%) and showed remarkable mechanical stability. The viscosity of the dispersions decreased with temperature increasing from 20°C to 60°C. When C=C content varied from 0 to 1.05meq/g, the dispersion particle size was under 300nm, zeta potentials were less than -48.9mV.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 535-537)

Pages:

1158-1162

Citation:

Online since:

June 2012

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] P.J.A. Geurink, T. Scherer, R. Buter, A. Steenbergen, H. Henderiks, Prog.Org. Coat. Vol.55 (2006), p.119.

Google Scholar

[2] Y.S. Kwak, E.Y. Kim, H.D. Kim, J.B. Lee, Colloid Polym. Sci. Vol. 283 (2005), p.880.

Google Scholar

[3] J.P. Stropp, U.Wolff, S. Kernaghan, H. Loffler, M. Osterhold, H. Thomas,Prog. Org. Coat. V. 55 (2006), p.201.

Google Scholar

[4] K. Maag, W. Lenhard, H. Loffles, Prog. Org. Coat. Vol, 40 (2000), p.93.

Google Scholar

[5] Chenyan Bai, Xingyuan Zhang, Jiabing Dai, Weihui Li. Prog. Org. Coat. 55(2006), pp.291-295.

Google Scholar

[6] S.K Lee, B.K. Kim, J. Colloid Interf Sci. Vol. 336(2009), p.208

Google Scholar

[7] B.K. Kim, J.S. Yang, S.M. Yoo, J.S. Lee, Colloid Polym Sci. Vol. 281(2003), p.461

Google Scholar

[8] D.H. Jung, E. Y. Kim, Y.S. Kang, B.K Kim. Colloids Surf., A. Vol.370( 2010), pp.58-63

Google Scholar