Abstract
In the present communication, polyesteramine (PEA) resin was synthesized by condensation polymerization of triethanolamine and itaconic acid and further treated with butylated melamine formaldehyde (BMF) in different (35, 40, 45, 50, 55) phr (part per hundred parts of resin) used as cross-linker and orthrophosphoric acid as catalyst. The structural elucidation of PEA was carried out by FT-IR,
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H-NMR, and
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C-NMR spectroscopic techniques. The physicochemical characterization of the resin, including acid value, hydroxyl value, refractive index, and specific gravity, were carried out by standard methods. The PEA-BMF systems were applied on mild steel strips of standard sizes by a brush to evaluate their physico-mechanical and chemical/corrosion resistance properties. Physico-mechanical properties and anticorrosive performance of PEA-BMF systems were investigated by standard methods. It was found that among all resin compositions PEA-BMF50 exhibited excellent coating properties. Morphology of coatings was investigated by scanning electron microscopy (SEM). Thermal stability of the resin was determined by thermogravimetric analysis (TGA). Thermal analysis reveals that PEA-BMF50 can be safely used up to 200°C.