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10.3390/ma15072562
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Article

Development and Characterization of PA 450 and PA 3282 Epoxy Coatings as Anti-Corrosion Materials for Offshore Applications

by
Mohammad Asif Alam
1,
Ubair Abdus Samad
1,*,
Asiful Seikh
1,
Jabair Ali Mohammed
1,
Saeed M. Al-Zahrani
2 and
El-Sayed M. Sherif
1,*
1
Center of Excellence for Research in Engineering Materials (CEREM), Deanship of Scientific Research, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
2
Department of Chemical Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
*
Authors to whom correspondence should be addressed.
Materials 2022, 15(7), 2562; https://doi.org/10.3390/ma15072562
Submission received: 17 February 2022 / Revised: 10 March 2022 / Accepted: 28 March 2022 / Published: 31 March 2022
(This article belongs to the Special Issue Advances in Metal-Based Nanoparticles)
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Abstract

The optimization of two different types of hardeners, namely polyaminoamine adduct (Aradur 450 BD) and polyamidoamine adduct (Aradur 3282 BD), with diglycidyle ether of bisphenol-A (DGEBA) epoxy resin was carried out. Three different stoichiometries of PA 450 to the epoxy resin to fabricate E-0, E-1, and E-2 coating samples and the other three of PA 3282 to the epoxy resin to fabricate F-0, F-1, and F-2 coating samples were coated on mild steel panels. All coated samples were characterized by scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FTIR), thermo-gravimetric analysis (TGA), and nanoindentation techniques. The electrochemical corrosion behavior of the fabricated coatings was investigated using electrochemical impedance spectroscopy (EIS) after various exposures in the climatic conditions in 3.5% NaCl solutions. It was found that the coatings possess almost identical thermal and mechanical properties. Moreover, the E-1 coating shows better corrosion resistance compared to E-0 and E-2 coatings. On the other hand, the F-1 coating was the most effective in significantly improving corrosion resistance. Overall, the addition of PA 450 and PA 3282 to some stoichiometries improves the corrosion resistance of the fabricated coatings.
Keywords: polyaminoamine and polyamidoamine adducts; epoxy coatings; corrosion resistance; nanoindentation; electrochemical impedance spectroscopy polyaminoamine and polyamidoamine adducts; epoxy coatings; corrosion resistance; nanoindentation; electrochemical impedance spectroscopy

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MDPI and ACS Style

Alam, M.A.; Samad, U.A.; Seikh, A.; Mohammed, J.A.; Al-Zahrani, S.M.; Sherif, E.-S.M. Development and Characterization of PA 450 and PA 3282 Epoxy Coatings as Anti-Corrosion Materials for Offshore Applications. Materials 2022, 15, 2562. https://doi.org/10.3390/ma15072562

AMA Style

Alam MA, Samad UA, Seikh A, Mohammed JA, Al-Zahrani SM, Sherif E-SM. Development and Characterization of PA 450 and PA 3282 Epoxy Coatings as Anti-Corrosion Materials for Offshore Applications. Materials. 2022; 15(7):2562. https://doi.org/10.3390/ma15072562

Chicago/Turabian Style

Alam, Mohammad Asif, Ubair Abdus Samad, Asiful Seikh, Jabair Ali Mohammed, Saeed M. Al-Zahrani, and El-Sayed M. Sherif. 2022. "Development and Characterization of PA 450 and PA 3282 Epoxy Coatings as Anti-Corrosion Materials for Offshore Applications" Materials 15, no. 7: 2562. https://doi.org/10.3390/ma15072562

APA Style

Alam, M. A., Samad, U. A., Seikh, A., Mohammed, J. A., Al-Zahrani, S. M., & Sherif, E.-S. M. (2022). Development and Characterization of PA 450 and PA 3282 Epoxy Coatings as Anti-Corrosion Materials for Offshore Applications. Materials, 15(7), 2562. https://doi.org/10.3390/ma15072562

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