The inhibition action of some organic polymers on the corrosion carbon steel in acidic media

Evaluation of Corrosion Protection Performance of New Polymer Composite Coatings on Carbon Steel in Acid Medium by Electrodeposition Methods

“…The peaks presented at 1152, 1071, 1009, and 788 cm −1 are ascribed to the "in plane and out plane" C-H of the aromatic rings. The transmittance spectra of MPY-TRX100/NNDEA/OL37 electrodeposition at various currents applied in a 5:1 molar ratio are depicted in Figure 4c-e [18][19][20][21][22][23]27]. The significant features peaks at the aromatic ring in PNMPY is seen at 1526 and 1464 cm −1 for C=C stretching.…”

“…The small peaks at 1100, 1020, 960, and 840 cm −1 are associated with the C-O-C vibration in (CH 2 CH 2 O)n of the surfactant as a dopant on the composite film (Figure 4c-e). The bands that can be seen at 1150, 856, and 781, 1008 cm −1 are attributed to the "in-plane" and "out-plane" C-H of the aromatic rings and to "out of plane" vibration of C-H doped of MPPY in oxalic acid medium (Figure 4c-e) [24][25][26][27][28][29]. The summit distinguished to "in plane" and "out of plane" of the N-H chains at 1034, 1152, and 640 cm −1 is supposed to be suitable in NMPY-TRX100/NNDEA/OL 37 composite film.…”

“…In recent years, there have been experiments on the employment of conducting polymer coatings over metallic materials for anticorrosion protection [18][19][20][21][22]. The metallic materials are used on a large scale in different industry practice, such as chemical manufacture, petroleum production and refining, technological equipment, and marine practices; this has aided the investigation into anticorrosion protection in varied corrosive environments [23][24][25][26][27]. Since corrosion is a substantial factor in the damage of industrial structures, a great number of experiments were achieved to find techniques to mitigate corrosion and wear cost.…”

Multifunctional Composite Coatings Based on Photoactive Metal-Oxide Nanopowders (MgO/TiO2) in Hydrophobic Polymer Matrix for Stone Heritage Conservation

“…The use and investigation of these materials is justified by the different fields in which they can be applied. In early studies reported by our group, it was first demonstrated that NaPACns have hosting properties for hydrophobic compounds [34,35], anticorrosive properties [36], water-repellent properties [37], long-term water-repellent properties [38], and antimicrobial properties [39]. Due to these characteristics, this multifunctional polymer was chosen to be combined, for the first time, with oxide nanoparticles to develop coatings for stone materials protection.…”

Chemical, electrochemical, thermodynamic and adsorption study of EN8 dual-phase steel with ferrite-martensite structure in 0.5 M H2SO4 using pectin as inhibitor

“…Corrosion inhibitors remain an important method to protect materials against the process of corrosion in a corrosive environment (Nathan 1973;Saxena et al 2020;Shinato et al 2020). The essential organic molecules containing heteroatom like sulfur, oxygen, nitrogen, etc., exhibit inhibiting action which is mainly referring to their adsorption on the surface of the metal (Branzoi et al 2020;El Faydy et al 2020;Mahgoub et al 2010;Tabatabaei majd, 2020). Moreover, the latest development in the protection of the surface of the metal is using nontoxic inhibitors (Galo et al 2020;Hoai et al 2019;Hynes et al 2021;Manssouri et al 2021;Negm et al 2011;Pais and Rao 2021;Şahin et al 2020).…”