Rational Fabrication of Superhydrophobic Nanocone Surface for Dynamic Water Repellency and Anti-icing Potential

Xie, Yuehan; Chen, Haifeng; Shen, Yizhou; Tao, Jie; Jin, Mingming; Wu, Yu; Hou, Wenqing

doi:10.1007/s42235-019-0003-x

Cited by 31 publications

(22 citation statements)

References 49 publications

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“…Thus, the smaller f m value led to more air being trapped between the ice and mesh. The smallest adhesion strength was found to be ~1.90 kPa when the 60-mesh sample was utilized, which is comparable to that of the well-textured superhydrophobic surface [12] . Tiny differences could be found between the 60-, 80-, and 100-mesh samples.…”

Section: The Anti-icing Testmentioning

confidence: 68%

“…Furthermore, the adhesion strength of the flat sample (f m = 1) is ~1.6 times larger than that of the 500-mesh sample (f m = 0.987). We attributed this to the microscale roughness of the 500-mesh sample, which could induce local stress concentrations, and significantly decrease the work required to remove ice from the surface [12,27] .…”

Section: The Anti-icing Testmentioning

confidence: 99%

“…However, most superhydrophobic surfaces demonstrated an adhesion strength larger than 100 kPa, which was much higher than that of slippery surfaces [11] . To solve this problem, Xie et al prepared a superhydrophobic dual-scale structure, and obtained a low adhesion strength of ~45 kPa [12] . Pan et al recently reported an extremely high Cassie-Baxter state by means of dual-scale micro-nano structure, but no ice adhesion was reported [13] .…”

Section: Introductionmentioning

confidence: 99%

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A Passive Anti-icing Strategy Based on a Superhydrophobic Mesh with Extremely Low Ice Adhesion Strength

et al. 2021

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Although superhydrophobic materials have attracted much research interest in anti-icing, some controversy still exists. In this research, we report a cost-effective method used to verify the contribution of area fraction to ice adhesion strength. We tried to partially-embed silica nanoparticles into microscale fabrics of a commercial polyamide mesh. Then, the area fraction could be determined by altering the mesh size. Generally, the ice adhesion strength decreases as the area fraction decreases. An ice adhesion strength of ∼1.9 kPa and a delayed freezing time of ∼1048 s can be obtained. We attribute the low ice adhesion strength to the combination of superhydrophobicity and stress concentration. The superhydrophobicity prohibits the water from penetrating into the voids of the meshes, and the small actual contact area leads to stress concentration which promotes interfacial crack propagation. Moreover, our superhydrophobic mesh simultaneously exhibits a micro-nano hierarchical structure and a partially-embedded structure. Therefore, the as-prepared superhydrophobic mesh retained the icephobicity after 20 icing/deicing cycles, and maintained its superhydrophobicity even after 60 sandpaper-abrasion cycles and a 220 °C thermal treatment.

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Section: The Anti-icing Testmentioning

confidence: 68%

Section: The Anti-icing Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Passive Anti-icing Strategy Based on a Superhydrophobic Mesh with Extremely Low Ice Adhesion Strength

et al. 2021

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“…Examples include self-cleaning lotus leaf [3] , structural color butterfly wing [4] , robust superhydrophobic water strider leg [5] , high adhesive gecko foot [6] , superhydrophobic and antireflection poplar leaf [7] and fog harvesting cicada wing [8] . Micro/nanostructured surfaces with extreme wettability have attracted significant attention due to their broad technological applications ranging from water harvesting, anticorrosion, liquid transport in microfluidics, anti-icing, self-cleaning and oil/water separation [9][10][11][12] .…”

Section: Introductionmentioning

confidence: 99%

Facile Fabrication of Biomimetic Water Pinning Microstructures on Polyethylene Surfaces with Robust Superhydrophobic Wetting State

Gao

et al. 2020

J Bionic Eng

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Applying hot-embossing technology, a simple and cost-effective method for the fabrication of microstructured High Density Polyethylene (HDPE) surfaces with a robust superhydrophobic wetting state is proposed. Micro-meshes and micro-grooves in the flexible template are filled by the PE melt in the hot embossing process. Subsequently, a two-stage microstructure on the PE film surface is formed. This PE film exhibits a contact angle of 151.8° ± 2° and roll-off angle of > 90° when a 5 µL water droplet is dropped on its surface. Water pinning ability on the surface is figured out and roll-off angles are as a quadratic function of specified water droplet volume. Specifically, a 356 µN water pinng force appears on the HDPE film due to the solid-vapor composite interface on its surface. Meanwhile, self-cleaning and immersion tests reveal that the HDPE surface with micro-pillars exhibit robust Cassie impregnating wetting state against external pressure. The proposed method for facial fabrication of microstructured surfaces is an appropriate candidate for the development of droplet manipulation and functional biomimetic polymer surfaces.

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“…Many methods have been introduced for anti-icing/de-icing, such as heating [4], releasing anti-icing agent [5], liquid-infused materials [6], and superhydrophobic surfaces [7]. Among these methods, the passive anti-icing method inspired by superhydrophobic surfaces has garnered considerable attention due to their advantages of energy-saving and high efficiency [8,9].…”

Section: Introductionmentioning

confidence: 99%

A Superhydrophobic/Electrothermal/Photothermal Synergistically Anti-icing Strategy with Excellent Self-healable and Anti-abrasion Property

Wang

Duan

et al. 2021

J Bionic Eng

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Unexpected ice accumulation tends to cause many problems or even disasters in our daily life. Based on the superior electrothermal and photothermal function of the carbon nanotubes, we introduced a superhydrophobic/electrothermal/photothermal synergistically anti-icing strategy. When a voltage of 15 V was applied to the superhydrophobic sample, the surface could rapidly melt the ice layer (~ 3 mm thickness) within 530 s at the environmental temperature of − 25 °C. When the near-infrared light (808 nm) irradiates on the superhydrophobic sample, the ice could be rapidly removed after 460 s. It was found that the superhydrophobicity helps the melted water to roll off immediately, and then solves the re-freeze problem the traditional surfaces facing. Moreover, the ice can be completely melted with 120 s when the superhydrophobic/electrothermal/photothermal synergistically anti-icing strategy was utilized. To improve the mechanical robustness for practical application, both nanoscale carbon nanotubes and microscale carbon powders were utilized to construct hierarchical structure. Then these dual-scale fillers were sprinkled onto the semi-cured elastomer substrate to prepare partially embedded structure. Both hierarchical structure and partially embedded structure were obtained after completely curing the substrate, which imparts excellent abrasion resistance (12.50 kPa, 16.00 m) to the prepared sample. Moreover, self-healable poly(urea–urethane) elastomer was introduced as the substrate. Thus, the cutted superhydrophobic sample can be mended by simply contacting at room temperature.

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Rational Fabrication of Superhydrophobic Nanocone Surface for Dynamic Water Repellency and Anti-icing Potential

Cited by 31 publications

References 49 publications

A Passive Anti-icing Strategy Based on a Superhydrophobic Mesh with Extremely Low Ice Adhesion Strength

A Passive Anti-icing Strategy Based on a Superhydrophobic Mesh with Extremely Low Ice Adhesion Strength

Facile Fabrication of Biomimetic Water Pinning Microstructures on Polyethylene Surfaces with Robust Superhydrophobic Wetting State

A Superhydrophobic/Electrothermal/Photothermal Synergistically Anti-icing Strategy with Excellent Self-healable and Anti-abrasion Property

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