Preparation and characterization of some developed phosphate and titanium pigments for industrial applications / Mahmoud Mohamed Aly Ahmed Elashry ; Supervised Amin M. Baraka , Mohamed Mahmoud E. A. Hefny , Mahmoud A. Abdelghaffar

Thesis (Ph.D.) - Cairo University - Faculty of Science - Department of Physical Chemistry

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. Consequently, the main goal of this study is focused on providing a detailed overview of protective ecofriendly systems (binder/pigment/inhibitor) based on epoxy resin with zinc titanate/polyaniline (PAN) and other type based on epoxy resin with boron phosphate/poly(p.phenylenediamine (PpPDA) as new types of corrosion inhibitive coatings that works holistically to obtain long-term performance for steel protection. However, characterization and investigation of zinc titanate/in-situ polymerized polyaniline and boron phosphate/in-situ polymerized poly(p.phenylenediamine) were achieved via XRD, XRF, FT-IR, SEM and thermal analysis. Besides, different concentrations of the studied systems of zinc titanate/polyaniline and boron phosphate/ poly(p.phenylenediamine) were applied within controlled paint formulations based on epoxy resin, subsequently, the physical and electrochemical measurements showed good physico-mechanical properties and high protection level against corrosion. Moreover, the self-healing influence of the selected coated films was examined and detected by simplified and effective considered methods giving good degree of self-healing response

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