Abstract Poly(urethane-malonic-esteramide) (PUMEA), a novel resin synthesized from corn oil-based fatty amide, malonic acid, and isophorone diisocynate, was modified by introducing different amounts of multi-walled carbon nanotubes (MWCNTs) into the polymer matrix and cured at room temperature. The chemical structure and surface morphology were characterized by Fourier-transform infrared spectroscopy, nuclear magnetic resonance, and field emission scanning electron microscopy, and thermal analysis was carried out by thermogravimetric analysis and differential scanning calorimetry. The PUMEA/MWCNTs composites were coated on mild steel panel and cured at room temperature. Hydrophobicity and physico-mechanical properties of the coatings were extracted by measuring contact angle, scratch and pencil hardness, bending, cross-hatch adhesion, impact, and gloss. The corrosion resistance was proved measuring the potentiodynamic polarization and electrochemical impedance of a PUMEA-coated mild steel panel immersed in a 3.5 wt% NaCl solution for 40 days. Thermal studies revealed that the PUMEA coating can be safely used up to 250 °C.

中文翻译：

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用玉米油和碳纳米管开发用于耐腐蚀应用的聚（氨基甲酸酯-丙二酸-酯酰胺）涂层

摘要 聚氨基甲酸酯-丙二酸酯酰胺 (PUMEA) 是一种由玉米油基脂肪酰胺、丙二酸和异佛尔酮二异氰酸酯合成的新型树脂，通过在聚合物中引入不同数量的多壁碳纳米管 (MWCNTs) 进行改性。基质并在室温下固化。通过傅里叶变换红外光谱、核磁共振和场发射扫描电子显微镜对其化学结构和表面形貌进行表征，并通过热重分析和差示扫描量热法进行热分析。PUMEA/MWCNTs 复合材料涂覆在低碳钢板上并在室温下固化。通过测量接触角、划痕和铅笔硬度、弯曲、划格附着力、冲击、和光泽。通过测量浸入 3.5 wt% NaCl 溶液 40 天的 PUMEA 涂层低碳钢板的动电位极化和电化学阻抗来证明耐腐蚀性。热学研究表明，PUMEA 涂层可在高达 250 °C 的温度下安全使用。