Boron Phosphate/Poiy(P-Phenylenediamine) As A Corrosion Inhibitive System For Steel Protection

CORROSION never sleeps, therefore, industries rather than governments do their best to resist the different types of corrosion by all possible methods and techniques particularly in high-risk areas. Nevertheless, organic coatings are considered the most widely applied route for protection of metallic surfaces from corrosion and they are of a special importance in transportation and infrastructure. Accordingly, the main goal of this study is to provide a detailed overview of a protective pigment/inhibitor system based on low-cost boron phosphate and poly(p-phenylenediamine) as a new type of corrosion inhibitive coating that works holistically to obtain long-term performance for steel protection. However, characterization and investigation of boron phosphate and/or in-situ polymerized p-phenylenediamine were achieved via XRD, XRF, FT-IR, SEM and thermal analysis. Besides, different concentrations of boron phosphate/poly(p-phenylenediamine) were applied within controlled paint formulations based on epoxy resin, subsequently, they showed good physico-mechanical properties and high protection level against corrosion.