Anticorrosive behavior of epoxy coating modified with hydrophobic nano-silica on phosphatized carbon steel

PECVD application to obtain polymer coated graphene nanoplatelets and development of new epoxy nanocomposites

“…To determine the corrosion properties of the ER/u-GNP and ER/PGMA-GNP composites, samples with 0.3 and 1.5 wt% GNPs were maintained in highly corrosive environments, that is, 10% NaCl, NaOH, or H 2 SO 4 solutions for 14 d. Figure 12 shows the corrosion test results, and Figures 13 and 14 show the SEM and microscope images of the PGMA-GNP composites, respectively. Xu et al [2] reported that an epoxy coating modified with hydrophobic nano-silica exhibited better corrosion resistance than an epoxy coating modified by hydrophilic nano-silica. This may be because hydrophobicity can repel water and corrosive ions from the coating surface and delay their transport in the coating.…”

“…Epoxy resins (ERs) are widely used thermosets owing to their wide range of applications. They possess noteworthy features, such as good electrical and mechanical properties, thermal stability, solvent and chemical resistance, humidity resistance, and excellent adhesive features for many coating applications [1,2]. Despite their many superior properties, epoxides have some drawbacks, such as low impact resistance, high brittleness, and low thermal and electrical conductivities, which limit their application when used without any reinforcement.…”

“…Despite their many superior properties, epoxides have some drawbacks, such as low impact resistance, high brittleness, and low thermal and electrical conductivities, which limit their application when used without any reinforcement. To overcome these undesirable effects, compatible fillers such as graphene [1], nanosilica [2], carbon nanotubes [3], and nanoclay [4] are incorporated into the epoxy. Although there are challenges, polymer nanocomposites are applied in the coating industry, and studies show that their commercial impact will significantly increase in the future.…”

Functionalized Modified BN@F-SiC Particle-Incorporating Epoxy: An Effective Hydrophobic Antiwear and Anticorrosion Coating Material

“…Hydrophobic materials can effectively block the intrusion of water and slow down the tendency for corrosive media to reach the substrate through water . Therefore, in recent years, the hydrophobic modification of nanofillers has been extensively studied in anticorrosive coatings. − An EP coating filled with nanosilica produced by Xu et al showed good hydrophobicity, and the |Z| 0.01Hz of 10 μm-thick coating was 5.25 × 10 5 Ω·cm 2 , which can significantly block the diffusion of water. Yu et al successfully transformed alumina into a hydrophobic material by grafting an alumina support with 1 H ,1 H ,2 H ,2 H -trifluorotrifluoro- n -octyltriethoxysilane (FAS) to prepare a hydrophobic coating.…”

Preparation and anticorrosion properties of GO‐Ce‐MOF nanocomposite coatings

“…The most effective way to deepen and develop research is to enhance the toughness and anti-corrosion performance of epoxy resin by adding nanomaterials to the epoxy resin coating. There are plenty of types of nanomaterials that have been extensively modified for the mechanical and anti-corrosion properties of epoxy resins, such as carbon nanotubes (CNT), 10,11 halloysite nanotubes (HNT), [12][13][14] layer double hydroxide (LDH), [15][16][17] graphene, 18,19 nano silica particles, 20,21 and sepiolite. 22,23 Metal organic frameworks (MOFs), composed of the metal ions as a precursor and organic compounds as ligands, are called the new class of nano porous materials.…”