Durable superhydrophobic PVDF/FEVE/GO@TiO2 composite coating with excellent anti-scaling and UV resistance properties

Liu, Zhanjian; Zhang, Congyuan; Zhang, Xiguang; Wang, Chijia; Liu, Fatang; Yuan, Ruixia; Wang, Huaiyuan

doi:10.1016/j.cej.2021.128632

Cited by 84 publications

(42 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The cooperation of appropriate micro/nano scale composite structure and the low-surface-energy modifier is the basic strategy for fabricating superhydrophobic coatings [11]. Based on this strategy, researchers used SiO 2 , TiO 2 , and carbon nanotubes as skeleton materials to produce the superhydrophobic powders or suspensions through hydrothermal synthesis, sol-gel synthesis, graft coating and other processes, followed by spraying or dipping to prepare superhydrophobic coatings [12][13][14][15]. Alternatively, aluminum, copper, and other bulk metal surfaces are employed as raw materials, followed by the corrosive dissolution, mechanical abrasion, and other processes to form a rough surface.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Iron Ore Tailings-Based Superhydrophobic Coatings

Tang

Zhao

et al. 2022

Materials

View full text Add to dashboard Cite

In this study, ball mill pretreated iron ore tailings were modified with tetraethoxysilane (TEOS) and hexadecyltrimethoxysilane (HDTMS) to obtain iron ore tailings/polysiloxane (IOT/POS) superhydrophobic powders, which were subsequently mixed with chloroprene rubber solution (CRS) to prepare durable superhydrophobic composite coatings. The effect of HDTMS amount and reaction time on the wettability of the superhydrophobic powder was investigated. The influence of the superhydrophobic powders concentration on the wettability of the composite coatings as well as the degree of damage of the superhydrophobicity of the composite coating was analyzed by using the sandpaper abrasion and tape peeling tests. Further, SEM and FTIR were used to analyze the formation mechanism of the IOT/POS superhydrophobic powders and coatings. The results showed for an HDTMS amount of 2.5 mmol and reaction time of 4 h, the contact angle of the IOT/POS powder was 157.3 ± 0.6°, whereas the slide angle was determined to be 5.9 ± 0.8°. For an IOT/POS powder content of 0.06 g/mL in CRS, the contact angle value of the superhydrophobic composite coating was 159.2 ± 0.5°, whereas the slide angle value was 5.5 ± 0.8°. The superhydrophobic composite coating still maintained the superhydrophobicity after the sandpaper abrasion and tape peeling tests, which indicated the iron ore tailings solid waste has the potential to prepare superhydrophobic coatings.

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation of Iron Ore Tailings-Based Superhydrophobic Coatings

Tang

Zhao

et al. 2022

Materials

View full text Add to dashboard Cite

show abstract

“…To prolong the lifespan of superhydrophobic surfaces, some novel approaches have been reported, such as enhancing the stability of the microstructures, , constructing self-similar microstructures, , and self-healing. − Among them, self-healing superhydrophobic surfaces are of great interest, for this approach is promising to maintain superhydrophobicity for a long period of time . After being damaged by plasma or scratching, self-healing superhydrophobic surfaces could recover their superhydrophobicity triggered by pH, heating, and coordination bonds, etc. − However, the existing self-healing superhydrophobic surfaces still have some shortcomings, for example, difficulty in repairing microstructure damage, limited self-healing cycles, and more importantly the inability to self-heal while in service.…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic Coatings with Photothermal Self-Healing Chemical Composition and Microstructure for Efficient Corrosion Protection of Magnesium Alloy

et al. 2021

View full text Add to dashboard Cite

Self-healing superhydrophobic coatings have a wide potential for practical applications by prolonging their lifespan, but still suffer from some shortcomings, for example, difficulty in repairing microstructure damage, limited self-healing cycles, and more importantly the inability to self-heal while in service. Herein, we present the fabrication of superhydrophobic coatings having photothermal self-healing chemical composition and microstructure for the high performance anticorrosion of Mg alloy. The coatings contain a shape-memory polymer (SMP) primer and an upper superhydrophobic coating composed of fluorinated polysiloxane-modified multiwalled carbon nanotubes (PF-POS@MWCNTs). The coatings have good superhydrophobicity, photothermal effect, and anticorrosion performance. The coatings show excellent self-healing performance in response to chemical and microstructure damage, such as rapid self-healing under 1 sun irradiation in 10 min, complete self-healing after serious damage (e.g., 10 damage and self-healing cycles and complex microstructure damage), and even self-healing under natural sunlight in 4 h. Moreover, the self-healed coatings show good corrosion protection for magnesium alloy in the neutral salt spray test. These are because of the combination of the SMP primer with good shape-memory effect and the PF-POS@MWCNTs coating with good superhydrophobicity, photothermal effect, and embedded PF-POS. The coatings are self-healable under natural sunlight while in service and thus may find applications in diverse fields.

show abstract

“…Chemical etching [ 6 ], electrochemical deposition [ 7 ], sol-gel [ 8 ], layer-by-layer assembly [ 9 ], plasma polymerization [ 10 ], and chemical vapor deposition [ 11 ] are some of the methods that can be used for the production rough surfaces with varied microstructures that have been reported thus far. Many techniques, such as chemical vapor transport and condensation [ 12 ]; pulsed laser deposition [ 13 ]; chemical vapor deposition [ 14 ]; and hydrothermal growth [ 15 ], have been used to produce materials with superhydrophobic surfaces that have a WCA of more than 150°. Yet, a great portion of these procedures entail stringent requirements (such as the use of hazardous chemicals), expensive ingredients, and complicated processing methods.…”

Section: Introductionmentioning

confidence: 99%

“…Chaoyi et al [ 18 ] created a superhydrophobic PVDF coating on wind turbine blades using a unique and easy technique, resulting in WCA and sliding angle (SA) of 156 ± 1.9 and 2 degrees, respectively. Recently, inorganic nanoparticles including silica [ 22 , 23 ], titanium dioxide [ 12 , 24 ], alumina [ 25 ], zinc oxide [ 26 , 27 ], and zirconium dioxide [ 28 , 29 ] have recently been widely employed in polymers to improve the polymer properties to fit a specific commercial purpose. The incorporation of a higher proportion of inorganic components is a frequent aspect of these alterations.…”

Section: Introductionmentioning

confidence: 99%

Performance of Sprayed PVDF-Al2O3 Composite Coating for Industrial and Civil Applications

et al. 2021

View full text Add to dashboard Cite

Because of their great water repellency, Superhydrophobic coatings have a major impact on a variety of industrial applications. The current study’s key originality is the development of low-cost, stable, superhydrophobic, and corrosion-resistant composite coatings. In the present work, polyvinylidene fluoride (PVDF)/Al2O3 composite coatings were produced using the spray technique to investigate the wettability and corrosion behavior of the coated materials for industrial and civil applications. PVDF was mixed with various concentrations of Al2O3 nanoparticles, and the mixture was sprayed onto steel, aluminum, and glass substrates. The wettability and morphology of the coated surfaces were investigated using the sessile droplet method and scanning electron microscopy, respectively. The corrosion resistance of bare substrates was compared to that of those coated with PVDF alone and those coated with PVDF/Al2O3 nanoparticles using Tafel polarization techniques. The force of adhesion between the coat and the substrates was measured in pounds per square inch. A nanoindentation test was also used to measure the hardness of the coating layer. The PVDF/Al2O3 coated steel showed a significantly higher water contact angle and lower contact angle hysteresis, reaching 157 ± 2° and 7 ± 1°, respectively, compared to the coated aluminum and glass substrates. Corrosion test results showed that the superhydrophobic PVDF/Al2O3 coatings had a much higher corrosion protection efficiency for steel and aluminum than that of the PVDF ones. The PVDF/Al2O3 coated substrates showed moderate but still acceptable adhesion between the coating layer and the substrates. Moreover, the PVDF/Al2O3 coatings had much better mechanical properties than the PVDF only coatings. Such type of coating could be a promising candidate for possible industrial and civil applications.

show abstract

Durable superhydrophobic PVDF/FEVE/GO@TiO2 composite coating with excellent anti-scaling and UV resistance properties

Cited by 84 publications

References 36 publications

Preparation of Iron Ore Tailings-Based Superhydrophobic Coatings

Preparation of Iron Ore Tailings-Based Superhydrophobic Coatings

Superhydrophobic Coatings with Photothermal Self-Healing Chemical Composition and Microstructure for Efficient Corrosion Protection of Magnesium Alloy

Performance of Sprayed PVDF-Al2O3 Composite Coating for Industrial and Civil Applications

Contact Info

Product

Resources

About