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

International Conference on Advances in Manufacturing and Materials Engineering 2017

机械制造;材料科学

Yahaya, Sabrina M.^1 ; Harun, M.K.^1 ; Rosmamuhamadani, R.^2 ; Bonnia, N.N.^2 ; Ratim, S.^2

Department of Applied Chemistry, Faculty of Applied Sciences, UniversitiTeknologi MARA, Selangor, Shah Alam

40450, Malaysia^1

Department of Material Technology, Faculty of Applied Sciences, UniversitiTeknologi MARA, Selangor, Shah Alam

40450, Malaysia^2

关键词: Corrosion performance;    Energy dispersive X ray analyzer;    Mild steel substrates;    NaCl aqueous solution;    Oxalic acid solution;    Polarization curves;    Poly(m-aminophenol);    Polypyrrole coatings;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/290/1/012079/pdf
DOI  :  10.1088/1757-899X/290/1/012079

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

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.