Application of Theophylline Anhydrous as Inhibitor of Acid Corrosion of Aluminum

Ismail, Nader; Megahed, H. E.; Ali, Ahmed Hussein; El-Etre, Mona A.

doi:10.21608/ejchem.2017.631.1011

Cited by 5 publications

(6 citation statements)

References 21 publications

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“…Thus, the inhibitor of our interest is poly(p-phenylenediamine) PpPDA. It is safe and echo-friendly with respect to the corresponding applied monomer [51] or other applied organic inhibitors [52,53]. Besides, the studied inhibitor was prepared and polymerized at the surface of boron phosphate pigment before its incorporation within the paint formulations, i.e., it acts as homogeneous and regular leachable species within the coating system providing long term performance against corrosion process.…”

Section: Characterization Of Boron Phosphate Coated With Inhibitor Pppdamentioning

confidence: 99%

Boron phosphate/poly p-phenylenediamine as a corrosion inhibitive system for steel protection

et al. 2018

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C ORROSION 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.

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Section: Characterization Of Boron Phosphate Coated With Inhibitor Pppdamentioning

confidence: 99%

Boron phosphate/poly p-phenylenediamine as a corrosion inhibitive system for steel protection

et al. 2018

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“…EIS tests are performed in 0.6M NaCl solution to study the anti-corrosion properties of the composite coatings obtained at different immersion times [12,28]. Figure 2 a-c. exemplified the Bode, phase angle and Nyquist (in situ) plots of substrate and composite coatings prepared at 30 mA cm -2 without and with 0.2g L -1 at different immersion times.…”

Section: Effect Of Graphene Concentration (Gns)mentioning

confidence: 99%

“…may be the uniformly distribution of GNS lamina which fills the micro punctures an incisions in the Ni matrix, homogeneous dispersion of GNS during the deposition process and inert physical hindrance feature of GNS are responsible for improved C.R. [12,28].…”

Section: Effect Of Graphene Concentration (Gns)mentioning

confidence: 99%

The impact of cationic surfactants on the electrodeposition of Nickel/Graphene nano-sheet composite coatings on brass

et al. 2018

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G RAPHENE nano-sheets (GNS) and cationic surfactants (S1&S2) are utilized for nickel composite coatings electrodeposition. They have a significant role in increasing the corrosion resistance of these coatings. A use of Nickel watt's bath with the addition of GNS as reinforcement material and different surfactants for nano-composite coatings deposition (Ni-GNS) are considered and the outcomes have been examined and discovered. Electrochemical techniques are utilized for examining the corrosion resistance for samples of nano-composite coatings in 0.6 M NaCl. The results suggest that the content of incorporated GNS increases with increasing the extent of GNS in plating bath. All of the Ni-GNS nano-composite layers in presence of surfactant have better corrosion resistance than the nickel coating. The best corrosion resistance value of about 64 kΩ cm 2 and relatively highest hardness value of 509 Hv for the composite coating electrode of Ni-GNS/with S1 are in comparison with the rest of nanocomposite coating electrodes or pure Ni coatings.

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“…In 1985, Abdel Aal and Wahdan [12] studied purine as an inhibitor of corrosion of steel in HClO 4 solution. Until now, they have been tested as corrosion inhibitors for numerous metals and alloys such as steel [13,14], aluminum [15,16], tin, indium, both pure and in the form of alloys [17,18], titanium [19], Mg alloys [20,21], copper [22][23][24][25], brass [26], nickel [27], and alloys such as Sn-Ag alloy [28] and CoCrMo alloy [29]. Purine compounds exhibit an inhibiting effect toward metal corrosion in various aqueous media but also in hydrocarbon media such as highly refined naphthenic mineral base oil [30].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Analysis of the Influence of Purines on Copper, Steel and Some Other Metals Corrosion

Mihajlović¹,

Tasić²,

Radovanović³

et al. 2022

Metals

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Metals stability and corrosion resistance are very important factors that influence the possibility of their applications. In order to study and foresee the behavior of metals during various applications in all kinds of conditions and media, numerous approaches and techniques are developed and applied. Among those techniques, electrochemical measurements nowadays have a dominant role since they are proved to be highly efficient, reliable, fast, relatively low-cost, and easy regarding the preparation and execution of measurements. Besides that, they also provide quite a good amount of data regarding the effect and the mechanism of the reactions that metals interact in. Metals corrosion is reduced by various methods, one of the most frequently used ones is the application of corrosion inhibitors. Usually, organic compounds are studied as potential corrosion inhibitors, and at the moment the focus is on the effect on the environment. Hence, environmentally friendly and non-toxic inhibitors are important research topics. Purines, since they are the group of bioorganic compounds found in numerous biochemical structures such as DNA and RNA, present a very interesting possible solution and are studied as inhibitors of corrosion for copper, steel, aluminum, etc., as well as for some metal alloys. Data obtained and available up until the present are presented and discussed in this review.

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Application of Theophylline Anhydrous as Inhibitor of Acid Corrosion of Aluminum

Cited by 5 publications

References 21 publications

Boron phosphate/poly p-phenylenediamine as a corrosion inhibitive system for steel protection

Boron phosphate/poly p-phenylenediamine as a corrosion inhibitive system for steel protection

The impact of cationic surfactants on the electrodeposition of Nickel/Graphene nano-sheet composite coatings on brass

Electrochemical Analysis of the Influence of Purines on Copper, Steel and Some Other Metals Corrosion

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