The application of benzimidazole and zinc cations intercalated sodium montmorillonite as smart ion exchange inhibiting pigments in the epoxy ester coating

Phytic Acid Intercalated Graphene Oxide for Anticorrosive Reinforcement of Waterborne Epoxy Resin Coating

“…To evaluate the degree of intercalation of the GO and PA-GO nanosheets in the epoxy coatings, XRD analysis was employed, and the results are shown in Figure 5a. In Figure 5a, the broad peak was observed in the 2θ range of 14-25 • in the EP sample was attributed to the scattering of amorphous structure of polymer chains [37]. Incorporation of GO nanosheets led to the appearance of a new broad peak at 2θ = 8.2 • , exhibiting 1.07 nm interlayer space distance related to (001) diffraction of graphene oxide nanosheets.…”

A Brief Overview on the Anticorrosion Performances of Sol-Gel Zeolite Coatings

“…Indeed, in literature the use of inhibitors containers was investigated in order to offer a suitable mechanical and structural stability of the coating optimizing the interaction with the hosting matrix and, at the same time, to control the inhibitor release during time offering a selective self-healing action only in real corroding conditions [15]. Several micro-and nano-capsules were proposed in order to host green inhibitors for corrosion protection of coatings, including bentonite [16], montmorillonite [17], hydroxyapatites [18], carbon, or alloysite nanotubes [19]. For example, this approach applied on clay nano-containers filled with Ce (III) ions provides significant corrosion inhibition and ability to delay cathodic delamination; the effect being superior to that of chromate-based coatings [3].…”

Synthesis and characterization of a new generation of inhibitive pigment based on zinc acetate/benzotriazole: Solution phase and coating phase studies

“…Most of the organic inhibitors i.e benzimidazole (BIA) and benzotriazole (BTA) are good corrosion inhibitors in acidic environments but they do not show proper inhibitive performance in neutralized pHs (6)(7). However, a synergetic behavior can be seen when the mentioned inhibitors are used in combination with the metal cations [32][33][34][35]. We used this idea to produce a new generation of hybrid inhibitive pigment based on benzotriazole (BTA) and zinc cations.…”

“…In this way, a hybrid pigment can be obtained which does not have the problems of direct incorporation of the inhibitors in the organic coatings. In our previous work [32] we characterized the active protection properties of the benzimidazole (BIA) and zinc cations (Zn 2+ ) intercalated sodium montmorillonite clay particles in an epoxy ester coating. Results revealed that sodium montmorillonite clay particles could release benzimidazole (BIA) and zinc cations (Zn 2+ ) on demand on the corrosion sites and promising self-healing and active protection properties were demonstrated.…”