Superhydrophobic micro-nano structured PTFE/WO3 coating on low-temperature steel with outstanding anti-pollution, anti-icing, and anti-fouling performance

Chang, Xueting; Li, Mingyu; Tang, Sikai; Shi, Liang; Chen, Xiaoqiu; Niu, Shicong; Zhu, Xiaojie; Wang, Dongsheng; Sun, Shibin

doi:10.1016/j.surfcoat.2022.128214

Cited by 42 publications

(19 citation statements)

References 69 publications

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“…Chang et al demonstrated that a PTFE sheet with a bottom silver film had a high R s (approximately 0.99) and a high E IR (around 0.9) simultaneously. 29 In addition, neat PDMS coatings have high transparency and good infrared emission properties. 9 As shown in Figure S1 [see Supporting Material, SM], the E IR of pure PDMS in the transparent atmospheric window (8∼13 μm) is 0.84.…”

Section: Resultsmentioning

confidence: 99%

All-Polymer Superhydrophobic Radiative Cooling Coating Based on Polytetrafluoroethylene/Polydimethylsiloxane Composites

Lei

Wang

et al. 2023

Ind. Eng. Chem. Res.

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In the present work, a polytetrafluoroethylene/polydimethylsiloxane (PTFE/PDMS) composite coating was fabricated using a simple brushing method. The PTFE/PDMS coating has both superhydrophobic self-cleaning property and radiation cooling function. The contact angle (CA) for water of the composite coating is 159.3°, and the sliding angle (SA) for water is 6.3°. Furthermore, the solar reflectivity of the coating in the wavelength range of 200–2500 nm is close to 92%, and the infrared emissivity in the 8–13 μm middle-infrared band is about 0.93. When the maximum daytime temperature in summer is 39 °C, the PTFE/PDMS coating could achieve an average radiation cooling temperature of 4.73 °C under direct sunlight from 10:00 a.m. to 16:00 p.m. Under the same conditions, covering the PTFE/PDMS coating on the electric vehicle seat cushion could realize the temperature drop of the seat cushion by 19.41 °C. After continuous washing and corrosion of 50,000 mL of simulated acid rain, 10 cycles of ultraviolet (UV) aging experiments, or 25 cycles of sandpaper abrasion, the superhydrophobicity and radiation cooling function of the PTFE/PDMS coating remained unchanged. In particular, the PTFE/PDMS coating lost the radiative cooling ability after the surface is contaminated. However, with the help of natural rainfall, its radiation cooling coating could recover rapidly. Therefore, the PTFE/PDMS coating developed in this work makes the radiative cooling coating more practical.

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Section: Resultsmentioning

confidence: 99%

All-Polymer Superhydrophobic Radiative Cooling Coating Based on Polytetrafluoroethylene/Polydimethylsiloxane Composites

Lei

Wang

et al. 2023

Ind. Eng. Chem. Res.

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“…Shewanella algae adhesion was completely avoided over 14 days of immersion in the bacterial suspension, while raw E40 steel and PTFE coated steel were covered with bacteria. The superhydrophobicity and electrostatic repulsion arising from the synergistic combination of the micro/nanostructure and PTFE coating are believed to explain such results . However, the WO 3 coated-only steel was not part of the antifouling characterized samples.…”

Section: Combined Topography and Hydrophobicity For Adhesion Preventionmentioning

confidence: 99%

Section: Combined Topography and Hydrophobicity For Adhesion Preventionmentioning

confidence: 99%

“…The superhydrophobicity and electrostatic repulsion arising from the synergistic combination of the micro/nanostructure and PTFE coating are believed to explain such results. 46 However, the WO 3 coated-only steel was not part of the antifouling characterized samples. It could have helped to better distinguishing contributions of micro/nanostructure vs chemical surface composition for explaining antibiofouling results.…”

Section: Combined Topography and Hydrophobicity For Adhesion Preventionmentioning

confidence: 99%

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Combining Topography and Chemistry to Produce Antibiofouling Surfaces: A Review

Durand

Whiteley

Mailley

et al. 2022

ACS Appl. Bio Mater.

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Despite decades of research on the reduction of surface fouling from biomolecules or micro-organisms, the ultimate antibiofouling surface remains undiscovered. The recent covid-19 pandemic strengthened the crucial need for such treatments. Among the numerous approaches that are able to provide surfaces with antibiofouling properties, chemical, biological, and topographical strategies have been implemented for instance in the marine, medical, or food industries. However, many of these methods have a biocidal effect and, with antibioresistance and biocide resistance a growing threat on humanity, strategies based on reducing adsorption of biomolecules and micro-organism are necessary for long-term solutions. Bioinspired strategies, combining both surface chemistry and topography, are currently at the heart of the best innovative and sustainable solutions. The synergistic effect of micro/nanostructuration, together with engineered chemical or biological functionalization is believed to contribute to the development of antibiofouling surfaces. This review aims to present approaches combining hydrophobic or hydrophilic chemistries with a specific topography to avoid biofouling in various industrial environments and healthcare facilities.

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“…Educating in extremely nonwettable surfaces is one of nature’s most absorbing branches. Inspired by red rose petals, lotus leaves, gecko feet, water strider legs, butterfly wings, etc., − in the natural world, several artificial superhydrophobic materials with a water contact angle > 150° and a facile water rolling-off (tilting angle <10°) were fabricated for an extensive range of research and practical applications such as corrosion resistance, anti-icing, self-cleaning, antifogging, drag reduction, and so on. − The surface free energy and surface geometrical structure are two essential parameters affecting the wettability of solid substrates. ,, Hence, low surface free energy combined with a dual-scaled rough structure is required to obtain superhydrophobic surfaces. − However, creating surfaces with super water and oil repellency (i.e., superamphiphobic surfaces) is much more complicated than designing superhydrophobic materials owing to the low surface tension of most organic liquids (e.g., alkanes and oils).…”

Section: Introductionmentioning

confidence: 99%

Selective Fabrication of Robust and Multifunctional Super Nonwetting Surfaces by Diverse Modifications of Zirconia–Ceria Nanocomposites

et al. 2022

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The creation of surfaces with various super nonwetting properties is an ongoing challenge. We report diverse modifications of novel synthesized zirconia–ceria nanocomposites by different low surface energy agents to fabricate nanofluids capable of regulating surface wettability of mineral substrates to achieve selective superhydrophobic, superoleophobic–superhydrophilic, and superamphiphobic conditions. Surfaces treated with these nanofluids offer self-cleaning properties and effortless rolling-off behavior with sliding angles ≤7° for several liquids with surface tensions between 26 and 72.1 mN/m. The superamphiphobic nanofluid coating imparts nonstick properties to a solid surface whereby liquid drops can be effortlessly displaced on the coating with a near-zero tilt and conveniently lifted off using a needle tip, leaving no trace. Further, the superamphiphobic surface demonstrates good oil repellency toward ultralow surface tension liquids such as n-hexane and n-heptane. The superoleophobic–superhydrophilic surface repels oil droplets well regardless of whether it is in the air or underwater conditions. In addition, reaping the benefits of the ZrO2–CeO2 nanocomposites’ photocatalysis feature, the superoleophobic–superhydrophilic coating exhibits self-cleaning ability by the degradation of color dyes. Modification of the wettability of substrates is carried out by a cost-effective and facile solution-immersion approach, which creates surfaces with hierarchical nano-submicron-scaled structures. The multipurpose coated surfaces have outstanding durability and mechanical stability. They also resist well high-temperature–high-pressure conditions, which will provide various practical applications in different fields, including the condensate banking removal in gas reservoirs or the separation of oil/water mixtures.

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Superhydrophobic micro-nano structured PTFE/WO3 coating on low-temperature steel with outstanding anti-pollution, anti-icing, and anti-fouling performance

Cited by 42 publications

References 69 publications

All-Polymer Superhydrophobic Radiative Cooling Coating Based on Polytetrafluoroethylene/Polydimethylsiloxane Composites

All-Polymer Superhydrophobic Radiative Cooling Coating Based on Polytetrafluoroethylene/Polydimethylsiloxane Composites

Combining Topography and Chemistry to Produce Antibiofouling Surfaces: A Review

Selective Fabrication of Robust and Multifunctional Super Nonwetting Surfaces by Diverse Modifications of Zirconia–Ceria Nanocomposites

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