Ion-exchange pigments in primer paints for anticorrosive protection of steel in atmospheric service: Cation-exchange pigments

Granizo, N.; Vega, Jesús Manuel; Fuente, Daniel de la; Chico, Belén; Morcillo, M.

doi:10.1016/j.porgcoat.2012.04.013

Cited by 29 publications

(10 citation statements)

References 46 publications

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“…It was named by Wilbur C. Knight in 1898, and the name is derived from a site located in Fort Benton, United States [ 7 ]. Bentonite is currently an important material due to the large number of applications in the food industry [ 8 , 9 ], paints [ 10 ], pharmaceutical industry [ 11 , 12 ], and wastewater treatment [ 13 , 14 ] and as a catalyst [ 3 , 15 – 17 ].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Colombian Clay and Its Potential Use as Adsorbent

Macías-Quiroga

Giraldo-Gómez

Sanabria‐González

2018

The Scientific World Journal

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This paper presents a mineralogical and physicochemical characterization of a Colombian clay found in an area with the greatest exploitation potential of smectites and possible use as an adsorbent for the removal of chromium. The clay was characterized by using X-ray diffraction (XRD), cation exchange capacity (CEC), X-ray fluorescence (XRF), Fourier transform infrared spectroscopy (FT-IR), thermal analysis (TGA/DSC), and nitrogen adsorption at 77 K. The homoionized clay was used as an adsorbent for the removal of Cr(III) in an aqueous solution. The homoionized clay was modified with hexadecyltrimethylammonium bromide (HDTMA-Br), and the organoclay obtained was evaluated for the adsorption of Cr(VI) in aqueous solution. The XRD analysis showed that the clay from Armero-Guayabal is primarily constituted by smectite (48 wt%) followed by quartz mineral (21 wt%). The chemical analysis of bulk clay showed that the predominant oxides are SiO2 (55.81 wt%), Al2O3 (16.25 wt%), and Fe2O3 (7.51 wt%), and the nitrogen adsorption indicated that the bulk clay has a specific surface area of 45.1 m2/g. Homoionized clay and organoclay achieved Cr(III) and Cr(VI) removals greater than 85.05 ± 2.04% (pH between 3 and 4) and 82.93 ± 1.03% (pH between 3 and 5), respectively, proving the potential of these materials for the removal of heavy metals in an aqueous solution.

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Section: Introductionmentioning

confidence: 99%

Characterization of Colombian Clay and Its Potential Use as Adsorbent

Macías-Quiroga

Giraldo-Gómez

Sanabria‐González

2018

The Scientific World Journal

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“…For example, cage structures like zeolites, such as NaX and NaY zeolites, have been loaded with Ce(III) inhibitors [173][174][175]. Layered structures, such as clays, have also been loaded with a range of inhibitors including Ce [176] and Ca-exchanged bentonite clays [177], and been tested in paints. These include hydrotalcites, which have been loaded with vanadate [150,178] and demonstrated a considerable improvement in filiform corrosion resistance [148].…”

Section: Inhibitor Delivery Systemsmentioning

confidence: 99%

Self-healing coatings

Hughés¹

2015

Recent Advances in Smart Self-Healing Polymers and Composites

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“…Either anodic or cathodic inhibition mechanism can be found in corrosion inhibitors [23,24]. In the case of inorganic ones, ion-exchange pigments (e.g., cation-exchange [25][26][27] or anion-exchange ones [28,29]) and nanoparticles (e.g., cerium oxide (CeO 2 ) [30][31][32][33], silica (SiO 2 ) [34] and zinc oxide (ZnO) [35,36]) have shown promising results as corrosion inhibitors. In the case of the cerium compounds, the inhibiting effect of cerium salts has been outlined by various authors [37][38][39][40], and it is under debate if the nanoparticles as such provide inhibiting effect.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Effect of CeO2 Nanoparticles as Corrosion Inhibitor in Hybrid Biobased Waterborne Acrylic Direct to Metal Coating Binders

et al. 2021

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CeO2 nanoparticles were incorporated in waterborne binders containing high biobased content (up to 70%) in order to analyze the anticorrosion performance for direct to metal coatings. Biobased binders were synthesized by batch miniemulsion polymerization of 2-octyl acrylate and isobornyl methacrylate monomers using a phosphate polymerizable surfactant (Sipomer PAM200) that lead to the formation of phosphate functionalized latexes. Upon the direct application of such binders on steel, the functionalized polymer particles were able to interact with steel, creating a thin phosphatization layer between the metal and the polymer and avoiding flash rust. The in situ incorporation of the CeO2 nanoparticles during the polymerization process led to their homogeneous distribution in the final polymer film, which produced outstanding anticorrosion performance according to the Electrochemical Impedance Spectroscopy measurements. In fact, steel substrates coated with the hybrid polymer film (30–40 µm thick) showed high barrier corrosion resistance after 41 days (~1000 h) of immersion in NaCl water solution and active inhibition capabilities thanks to the presence of the CeO2 nanoparticles. This work opens the door to the fabrication of sustainable hybrid anticorrosion waterborne coatings.

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Ion-exchange pigments in primer paints for anticorrosive protection of steel in atmospheric service: Cation-exchange pigments

Cited by 29 publications

References 46 publications

Characterization of Colombian Clay and Its Potential Use as Adsorbent

Characterization of Colombian Clay and Its Potential Use as Adsorbent

Self-healing coatings

Assessing the Effect of CeO2 Nanoparticles as Corrosion Inhibitor in Hybrid Biobased Waterborne Acrylic Direct to Metal Coating Binders

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