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Protective Behavior of Poly(m-aminophenol) and Polypyrrole Coatings on Mild Steel

机译:低碳钢聚(M-氨基酚)和聚吡咯涂层的保护性能

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Electrodeposition of polypyrrole (PPy) and poly (m-aminophenol) (PMAP) films on mild steel (MS) substrate was achieved in 0.3M oxalic acid solution and 0.3M NaOH, water:ethanol (70:30) solvent respectively using cyclic voltammetry technique. The morphology of the films constructed was determined by scanning electron microscope (SEM) while energy dispersive X-Ray analyzer (EDX) was used to establish the presence of organic PMAP and PPy film coating and its compositions. The corrosion performance of MS coated with both polymer films were investigated after 0.5 hours immersed in 0.5M NaCl aqueous solution by using polarization curves. It was found that PPy coating provides anodic protection while PMAP coating provides cathodic protection towards corrosion protection of mild steel substrate.
机译:在0.3M的草酸溶液和0.3M NaOH,水:乙醇(70:30)溶剂中,在0.3m的草酸溶液和0.3m,水:乙醇(70:30)溶剂中的电沉积萘吡咯(MS)和聚(M-氨基酚)(PMAP)薄膜。技术。通过扫描电子显微镜(SEM)测定构造的膜的形态,而能量分散X射线分析仪(EDX)用于建立有机PMAP和PPY膜包衣的存在及其组合物。通过使用偏振曲线将0.5小时浸入0.5M NaCl水溶液中的0.5小时后,研究了涂有两种聚合物膜的MS的腐蚀性。发现PPY涂层提供阳极保护,而PMAP涂层为低碳钢基板提供阴极保护。

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