Abstract
Water-soluble hydroxyl functionalized hyperbranched polyester (WH-HP) resin was synthesized using pentaerythritol, pyromellitic dianhydride, phthalic anhydride, and 1,1,1-tris(hydroxymethyl)propane. The synthesized WH-HP was characterized by spectroscopic (FTIR and NMR) as well as thermal (TGA and DSC) analysis. WH-HP and hexa methoxy methyl melamine (HMMM) resins were mixed in different mole ratios (1:2.5, 1:5, 1:7.5, and 1:10), coated on mild steel panel, and cured by baking at 110°C for 1 h. These coating compositions were evaluated for their mechanical and anticorrosive properties. It was observed that coating composition having 1:5 mol ratio (WH-HP:HMMM) has shown very good mechanical and anticorrosive properties compared to the rest.
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Acknowledgment
Authors thank Dr. R. S. Hastak, Director, NMRL for his valuable suggestion and also permission to carry out this work. We would also like to thank Mr. N. G. Malvanker, NMRL for his help in testing the samples.
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Singh, A.P., Suryanarayana, C., Baloji Naik, R. et al. Development of hyperbranched polyester polyol-based waterborne anticorrosive coating. J Coat Technol Res 13, 41–51 (2016). https://doi.org/10.1007/s11998-015-9720-1
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DOI: https://doi.org/10.1007/s11998-015-9720-1