Studies on SiO2-hybrid polymeric nanocomposite coatings with superior corrosion protection and hydrophobicity

Effects of TiO2 Nanoparticles on the Overall Performance and Corrosion Protection Ability of Neat Epoxy and PDMS Modified Epoxy Coating Systems

“…Even though the EIS data for EP coating system was found to be perfectly fitted with Model A of the equivalent circuit after 1 and 30 days of immersion time, but the bending of the Bode plot at the high-frequency region and the small diameter of the semicircle in the Nyquist plot indicate a fair corrosion ability. Similar observations were reported by Ammar et al who utilized the breakpoint frequency concept to the analysis the stability of the epoxy-PDMS hybrid coating system and concluded with that fact that as the immersion time elapsed, larger resistive region and relatively smaller capacitive region are observed in the area under the Bode plot which resulted from the shifting of the breakpoint frequency values toward the higher frequencies region, hence a reduction of the barrier properties of the coating film is occurring (Ammar et al, 2017).…”

“…It gives a significant impact on the industrial applicated due to its molecular structure that may exist in assorted forms (Pouget et al, 2009). Silicone polymers are widely used as polydimethylsiloxane (PDMS) which is an inorganic polymer and has the properties of being hydrophobic contributed by its non-polar -CH 3 group that gives the coating low surface energy (Ammar et al, 2017). Massive research works have been conducted in the past few years (Sung and Lin, 1997;Velan and Bilal, 2000;Ahmad et al, 2005) to determine the optimum mixing ratio between epoxy resin and PDMS.…”

The Synergistic Effects of Sio2 Nanoparticles and Organic Photostabilizers for Enhanced Weathering Resistance of Acrylic Polyurethane Coating

“…For example, by adding nano-SiO2 into the coating formulation, the mechanical, thermal, [2,17] weathering resistance [18,19], and anticorrosion properties [20,21] of the organic coatings were significantly improved. Nano-SiO2 is also used for both super hydrophobic coatings [22][23][24][25][26] or hydrophilic coatings [27].…”

Synthesis and characterization of hybrid materials based on graphene oxide and silica nanoparticles and their effect on the corrosion protection properties of epoxy resin coatings

“…Due to their many advantages such as environmental friendliness, high mechanical strength, good thermal and chemical stability, hydrophilicity and low cost, many researchers have confirmed the increase of the corrosion protection performance obtained via the SiO 2 incorporation in epoxy coatings [19]. Recently, Ammar et al [20] have developed an epoxy/PDMS hybrid nanocomposite using the solution intercalation method with different weight ratios of SiO 2 nanoparticles. Consequently the barrier and corrosion protection performance of the epoxy coating have been obviously enhanced.…”