An intelligent coating doped with inhibitor-encapsulated nanocontainers for corrosion protection of pipeline steel

Feng, Yuanchao; Cheng, Y. Frank

doi:10.1016/j.cej.2017.01.064

Cited by 160 publications

(46 citation statements)

References 43 publications

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“…Measurement of self-releasing of DOC from MLUFMCs in response to pH change Figure 10 shows the release of DOC from the MLUFMCs in response to pH change. MLUFMCs were dipped into 0.1 molar NaCl solution having five different pH values (2,5,7,9,11) and then UV-Vis spectroscopy was under taken at each pH value for different time intervals (24, 48 and 72 h). After 24 h of immersion of MLUFMCs in the solution, no absorption peak was detected at any pH value (Fig.…”

Section: Thermal Stability Of the Microcapsules And Epoxy Coatingsmentioning

confidence: 99%

“…Smart coatings have been synthesized and studied by several research groups [4,5]. Smart coatings can provide self-healing of the polymeric matrix [4,[6][7][8] or/and healing of the corrosion process [9][10][11][12][13][14]. Under specific stimulus conditions, the active agents stored into nano/microcontainers can be released to heal the coating or to inhibit corrosion activity.…”

Section: Introductionmentioning

confidence: 99%

“…pH-sensitive containers loaded with corrosion inhibitors can be activated by local pH gradients associated with the corrosion activity and release the inhibitor into these active areas, protecting the metal. ZnO [10], SiO 2 nanoparticles [11], halloysite nanotubes [27,28], TiO 2 nanotubes [29,30] and others have been used as pH-sensitive carriers of corrosion inhibitors. As an advancement, the use of multiple containers sensitive to similar or distinct stimuli, in a single polymeric coating, has gained significant attention and claimed as more effective corrosion protection route [31,32].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and properties of polyelectrolyte multilayered microcapsules reinforced smart coatings

et al. 2019

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The present research work focuses on the synthesis, characterization and properties of novel polyelectrolyte multilayered microcapsules used as smart additives in organic coatings for corrosion protection of steel parts. Urea formaldehyde microcapsules encapsulated with linalyl acetate (UFMCs), sensitive to mechanical stimulus, were synthesized by in situ emulsion polymerization technique. In the next step, dodecylamine, working as a pH stimulus corrosion inhibitor, was loaded into layers of polyelectrolyte molecules, polyethylenimine (PEI) and sulfonated polyether ether ketone (SPEEK). These were applied layer-by-layer over the microcapsules to form inhibitor containing multilayered urea formaldehyde microcapsules (MLUFMCs). In the next step, MLUFMCs (5.0 wt%) and UFMCs (5.0 wt%) were thoroughly dispersed into the epoxy resin and coated on cleaned steel. A comparison of the structural, thermal and anticorrosive properties indicates that coatings modified with multilayered capsules (PMLSCs) demonstrate good thermal stability, improved self-healing characteristics and higher corrosion resistance compared to the coating modified with urea formaldehyde microcapsules. The improved properties of PMLSCs can be attributed to efficient release of the encapsulated self-healing agent and corrosion inhibitor from the MLUFMCs. Therefore, epoxy coatings modified with the novel multilayered capsules may be attractive for corrosion protection of steel parts used in oil and gas and related industries.

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Section: Thermal Stability Of the Microcapsules And Epoxy Coatingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synthesis and properties of polyelectrolyte multilayered microcapsules reinforced smart coatings

et al. 2019

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“…However, the severe acidic and high-temperature environments during drilling and stimulation processes in the oil and gas wells limit the full utilization of such green corrosion inhibitors. The development of green corrosion inhibitors that resist severe acidic corrosive environments and control the corrosion of API X120 steel [16][17], particularly in well acidizing, is highly desired. A number of researches reduce the steel corrosion in acidic media by means of the surfactants [18][19].…”

Section: Introductionmentioning

confidence: 99%

Caprylamidopropyl Betaine as a highly efficient eco-friendly corrosion inhibitor for API X120 steel in 1 M H2SO4

et al. 2019

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C ORROSION inhibition of API X120 steel in a 1M sulfuric acid solution at altered temperatures was investigated utilizing a new eco-friendly surfactant (Caprylamidopropyl Betaine (CAPB)) by Gravimetric and electrochemical test (containing potentiodynamic polarization (PP), electrochemical impedance spectroscopy (EIS). Surface characterization tests containing scanning electron microscopy (SEM), and atomic force microscopy (AFM) are utilized in the study. In addition, kinetic and thermodynamic parameters were measured and discussed. The overall results displayed that the corrosion rate of API X120 steel was significantly lowered with improving the temperature. The polarization curves lead to the CAPB inhibitor is influenced both anodic and cathodic reactions (mixed type inhibitor). Analyses of the surface topography designated an appreciable decrease in the surface roughness as the dose of the inhibitor in the solution improved. Energy-dispersive X-ray and X-ray photoelectron spectroscopy revealed the presence of adsorbed nitrogen atoms on the API X 120 steel surfaces. This work provides a promising eco-friendly inhibitor for mitigating the corrosion of API X120 steel in highly acidic brine environments.

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“…[1][2][3] Consequently, various anti-corrosion methods have been developed to slow the corrosion rate of steel parts or products in different corrosive environments. [4][5][6] Among them, chemical conversion coating, i.e. a multifunctional, protective surface layer on a metal substrate that is created by chemical reaction between the metal and a chemical solution, is playing an irreplaceable role in the corrosion protection of metals as a major means for metal surface pretreatment.…”

Section: Introductionmentioning

confidence: 99%

A simple and convenient method to fabricate new types of phytic acid–metal conversion coatings with excellent anti-corrosion performance on the iron substrate

Yan

Gao

et al. 2017

RSC Adv.

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An intelligent coating doped with inhibitor-encapsulated nanocontainers for corrosion protection of pipeline steel

Cited by 160 publications

References 43 publications

Synthesis and properties of polyelectrolyte multilayered microcapsules reinforced smart coatings

Synthesis and properties of polyelectrolyte multilayered microcapsules reinforced smart coatings

Caprylamidopropyl Betaine as a highly efficient eco-friendly corrosion inhibitor for API X120 steel in 1 M H2SO4

A simple and convenient method to fabricate new types of phytic acid–metal conversion coatings with excellent anti-corrosion performance on the iron substrate

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