Superhydrophobic nanocomposite coatings of poly(methyl methacrylate) and stearic acid grafted CuO nanoparticles with photocatalytic activity

Ghashghaee, Mohammad; Fallah, Mehrdad; Rabiee, Ahmad

doi:10.1016/j.porgcoat.2019.105270

Cited by 39 publications

(13 citation statements)

References 72 publications

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“…Fabrication of the superhydrophobic surface with favourable properties is a challenge in the field of surface and interface science [9,10]. As reported, Wenzel-Cassie coexist state can be fabricated by porous surface, which improves catalysing due to maximizing the interface of electrode coating [11].…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic and low-hysteresis coating based on rubber-modified TiO2/SiO2 nanoparticles

et al. 2021

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In this article, the wettability of a superhydrophobic layer from rubber-modified TiO 2 /SiO 2 nanocomposite is studied. The nanocomposites were prepared with various ratios of TiO 2 and SiO 2 nanoparticles (NPs) and then studied the effect of annealing, UV irradiation and aging after coating on a substrate. Results show that the average contact angle of deionized water droplets on the most hydrophobic coating is 129.5°, which increases up to 151.0°by UV irradiation. In addition, the lowest surface energy of the prepared layers was measured as 29.61 mJ m -2 . The hydrophobicity of the coating surface was investigated after annealing (at temperatures up to 300°C), and results show that the maximum contact angle is about 150°. The dynamics of water droplets on the most hydrophobic coating were investigated by rapid imaging, and results show no hysteresis for surface wetting. Fourier transform infrared spectroscopy shows that UV irradiation causes the formation of C-H functional groups on the surface without considerable change in the hydrophobicity, while the annealing process has no significant effects on the functional groups. The morphology of the coatings was investigated by scanning electron microscopy, and results reveal that the roughness of surfaces increases due to annealing and UV radiation. In addition, a minimum increase in the roughness coefficient is estimated as 73% of the initial value after annealing, which is in agreement with atomic force microscopy results.

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Section: Introductionmentioning

confidence: 99%

Superhydrophobic and low-hysteresis coating based on rubber-modified TiO2/SiO2 nanoparticles

et al. 2021

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“…To date, introducing of adhesive resin like polyurethane and polydimethylsiloxane (PDMS) into the coating to protect the hierarchical structure has been proven to be an effective method to improve the mechanical properties of the coating [13][14][15][16][17][18][19][20][21]. Fu et al prepared a fluorine-modified polyurethane through a two-step thiol click reaction, and blended it with silica nanoparticles to prepare a superhydrophobic coating with high mechanical stability.…”

Section: Introductionmentioning

confidence: 99%

Durable, self-cleaning and anti-fouling superhydrophobic coating based on double epoxy layer

Li¹,

Liu²,

Zhang³

et al. 2022

Mater. Res. Express

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The practical application of superhydrophobic coatings has been greatly restricted due to the complicated preparation and fragile hierarchical structures on the surface. In this study, we prepared a robust superhydrophobic coating with a double-layer structure via a low-cost and facile method, adhering the non-wettability layer composed of silica nanoparticles and fluorine-modified epoxy resin to a binder resin layer on aluminium. The fluorine-modified epoxy resin with low surface energy can fix the silica nanoparticles after curing and cross-link with the adhesive layer. When the SiO2 content in the surface layer is 40%, the water contact angle (WCA) of the coating is 162°, and the sliding angle (SA) is 2°. In the mechanical performance test, the durable coating can remain superhydrophobic even after 260 cycles of friction or 160 cycles of tape peeling. In addition, the superhydrophobic coating with self-cleaning and anti-fouling properties also has the performance of acid-base solution resistance. Hence, the combination of the rough layer and the adhesive layer makes the practical application of artificial superhydrophobic coatings possible.

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“…On the one hand, the superhydrophobic surface is not conducive to the adhesion of dirt particles, so it can achieve self-cleaning through the impact of water flow . On the other hand, photocatalytic NPs such as TiO 2 , ZnO, , and CuO have attracted great attention due to their applications in photodegradation of organic pollutants and preparation of self-cleaning surfaces. Zhang designed a PBZ/TiO 2 surface with superhydrophobic/superoleophilic properties which could remove both oil and particle contamination.…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic Polybenzoxazine/TiO₂ Coatings with Reversible Wettability for High-Flux Oil/Water Separation

Yao

et al. 2021

Ind. Eng. Chem. Res.

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Superhydrophobic polybenzoxazine (PBZ)/TiO2 coatings with reversible wettability were fabricated by blending eugenol/siloxane-based benzoxazine (E-aptmds) with TiO2 nanoparticles through spin coating and thermal curing processes. The resulting coatings could switch between superhydrophobicity and superhydrophilicity through alternate ultraviolet (UV) irradiation and heating treatment cycles. The PBZ/TiO2 coating-modified stainless steel mesh (PBZ/TiO2 mesh) had ultra-high oil/water separation fluxes of over 54,000 L/m2 h only by gravity for several heavy oil/water mixtures. Meanwhile, the PBZ/TiO2 mesh could efficiently collect various light oils from water with separation efficiencies of over 96.0%. Additionally, the PBZ/TiO2 mesh could purify methylene blue-contaminated water through UV irradiation. Owing to the self-cleaning property of the PBZ/TiO2 mesh, chemical and powdery pollutants could be easily dispelled. Furthermore, the as-prepared mesh exhibited strong durability under harsh treatments including high temperature, acid/alkali immersion, or organic solvent immersion. Hence, the PBZ/TiO2 mesh owns a bright prospect in the application of oil/water separation.

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Superhydrophobic nanocomposite coatings of poly(methyl methacrylate) and stearic acid grafted CuO nanoparticles with photocatalytic activity

Cited by 39 publications

References 72 publications

Superhydrophobic and low-hysteresis coating based on rubber-modified TiO2/SiO2 nanoparticles

Superhydrophobic and low-hysteresis coating based on rubber-modified TiO2/SiO2 nanoparticles

Durable, self-cleaning and anti-fouling superhydrophobic coating based on double epoxy layer

Superhydrophobic Polybenzoxazine/TiO₂ Coatings with Reversible Wettability for High-Flux Oil/Water Separation

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Superhydrophobic nanocomposite coatings of poly(methyl methacrylate) and stearic acid grafted CuO nanoparticles with photocatalytic activity

Cited by 39 publications

References 72 publications

Superhydrophobic and low-hysteresis coating based on rubber-modified TiO2/SiO2 nanoparticles

Superhydrophobic and low-hysteresis coating based on rubber-modified TiO2/SiO2 nanoparticles

Durable, self-cleaning and anti-fouling superhydrophobic coating based on double epoxy layer

Superhydrophobic Polybenzoxazine/TiO2 Coatings with Reversible Wettability for High-Flux Oil/Water Separation

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Product

Resources

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Superhydrophobic Polybenzoxazine/TiO₂ Coatings with Reversible Wettability for High-Flux Oil/Water Separation