Browse > Article
http://dx.doi.org/10.17702/jai.2011.12.1.034

Study for Synthesis and Properties of Polyurethane Based on Polyester Polyol with Varying Hydroxyl Values for Automotive Pre-painted Metal Sheet Applications  

Kang, Choong Yeol (Advanced ResearchTeam, PPG Industries Korea Inc.)
Lee, Jae Young (Advanced ResearchTeam, PPG Industries Korea Inc.)
Noh, Seung Man (Advanced ResearchTeam, PPG Industries Korea Inc.)
Nam, Joon Hyun (Advanced ResearchTeam, PPG Industries Korea Inc.)
Park, Jong Myung (Surface Engineering Lab, GIFT, POSTECH)
Jung, Hyun Wook (Department of Chemical & Biological Engineering, Korea University)
Yu, Sang Soo (POSCO C&C)
Publication Information
Journal of Adhesion and Interface / v.12, no.1, 2011 , pp. 34-42 More about this Journal
Abstract
The roll coating process is well-known for completely replacement coating system with an existing wet paint process for automotive which has low productivity and is not environment-friendly process. It is very important to evaluate the curing behavior, corrosion resistance and processing property as well as rheological behavior in order to realize a film flexibility and hardness simultaneously. In this study, we have synthesized the polyester resin modified with hydroxyl values and molecular weight to apply the pre-painted system, and then evaluated the curing behavior, deep drawing, tensile strength and rheological properties. It was observed that N-0375-40 of 40 (mg KOH/mol) hydroxyl values showed the most suitable for flexibility, film hardness, and curing behavior.
Keywords
pre-painted system; polyester; hydroxyl value; automotive coating; polyurethane; curing behavior;
Citations & Related Records
연도 인용수 순위
  • Reference
1 U. Poth, Automotive Coatings Formulation, Vincentz, Network, Hannover (2008).
2 T. Brock, M. Groteklaes, and P. Mischke, European Coatings Handbook, Vincentz, Hannover (2000).
3 L. Prendi, E. K. L. Tam, and A. Anastassopoulos, Coatings Tech, 5, 30 (2008).
4 A. Anastassopoulos, Coatings Tech, 6, 26 (2009).
5 S. Detiveaux, Coatings Tech, 6, 36 (2009).
6 H.-J. Streitberger and K.-F. Dossel, Automotive Paints and Coatings, WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim (2008).
7 C. Testa, Coatings Tech, 5, 24 (2008).
8 Z. W. Wicks, F. N. Jones, S. P. Pappas, and D. A. Wicks, Organic Coatings - Science and Technology, John Wiley & Sons, Inc., Hoboken (2007).
9 A. Goldschmidt and H.-J. S. Streitberger, Basics of Coating Technology, Vincentz Network, Munster (2007).
10 R. Schwalm, UV Coatings : Basics, Recent Developments and New Applications, Elsevier, Amsterdam ; London (2007).
11 D. Santos, H. Raminhos, M. R Costa, T. Diamantino, and F. Goodwin, Prog. Org. Coat., 628, 265 (20087).
12 M. Buder-Stroisznigg, G. M. Wallner, B. Straub, L. Jandel, and R. W. Lang, Prog. Org. Coat., 65, 44 (2009).   DOI   ScienceOn
13 B. H. Lee, J. H. Choi, and H. J. Kim, Prog. Org. Coat., 52, 241 (2005).   DOI   ScienceOn
14 B. H. Lee, J. H. Choi, and H. J. Kim, J. of Appl. Polym. Sci., 92, 625 (2004).   DOI   ScienceOn
15 K. Ueda, H. Kanani, and T. Amari, Prog. Org. Coat., 45, 15 (2002).   DOI   ScienceOn
16 K. Ueda, H. Kanani, and T. Amari, Prog. Org. Coat., 45, 267 (2002).   DOI   ScienceOn