Surface modification with hierarchical CuO arrays toward a flexible, durable superhydrophobic and self-cleaning material

Xu, Chang‐Lian; Song, Fei; Wang, Xiuli; Wang, Yu‐Zhong

doi:10.1016/j.cej.2016.11.024

Cited by 97 publications

(23 citation statements)

References 43 publications

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“…STA, which is a kind of biocompatible reagents with low surface energy, was usually utilized to modify the surfaces of metal oxide to fabricate superhydrophobic materials 21 . CuO could react with STA forming cupric carboxylates 22 . In this paper, STA was chosen to further decease surface energy of cellulose–CuO film.…”

Section: Resultsmentioning

confidence: 99%

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Facial fabrication of superhydrophobic cellulose film with hierarchical morphologies

2021

Surface & Interface Analysis

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Hierarchical CuO spheres were firstly grown on the surface of cellulose film, and then stearic acid (STA) was utilized to decrease surface energy. The cupric ions fixed on the cellulose film transferred to one side and reacted with STA forming cupric stearates. The cupric stearates then self‐assembled into nanobelts/nanoribbons and spread over the film, which induces to form hierarchical morphologies. Both sides of CuO modified film are black and superhydrophilic in air; after modification with STA, the film becomes superhydrophobic for both sides, whereas one side is blue and the other side is black showing different morphologies. Water contact angles (WCAs) of the superhydrophobic film for both black and blue sides are 153.9 ± 0.6° and 153.5 ± 0.8°, respectively. Sliding angles (SAs) for both sides are lower than 9.5°, indicating non‐sticking superhydrophobic state. More importantly, the superhydrophobic cellulose–CuO–STA film is still superhydrophobic under hydrodynamic impact or pH of 3–11.

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Section: Resultsmentioning

confidence: 99%

“…Thus, the blue side is still superhydrophobic. In addition, cupric stearate exhibits superior performance against acid and base 22 ; thus, the film could maintain its superhydrophobicity at pH varying from 3 to 11.…”

Section: Resultsmentioning

confidence: 99%

Facial fabrication of superhydrophobic cellulose film with hierarchical morphologies

2021

Surface & Interface Analysis

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“…It results that this surface had a fine contaminant repellent performance. Xu et al [34] have developed a simple hydrothermal method for in-situ fabricate CuO (micro/nano-structures) spheres on polyimide. Interestingly, this surface can not only resist corrosion and harsh condition, but also have a super self cleaning character for both organic and inorganic contaminants.…”

Section: Application In the Transportation 1) Anti-icingmentioning

confidence: 99%

A Review: Natural Superhydrophobic Surfaces and Applications

Jin¹,

Xing²,

Chen³

2020

JBNB

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As the mimic biology becomes more and more important in the field of technology, superhydrophobic materials in the natural world have also become common. Superhydrophobic surfaces are used to prevent water droplets from wetting themselves which contain the micro-and nano-structures named hierarchical surfaces and exhibit the high water contact angles (WCA) that are greater than 150˚ and perfect application foreground in both our daily lives and industry. In this work, we first discuss several surface properties and their numerical models. And then we list the surface properties of a variety of natural superhydrophobic surfaces and sum up their similarities and differences. The most recent strategies of how to apply natural superhydrophobic surfaces are also introduced within the past several years. In addition, we talk about the limitations of the current generation of superhydrophobic surfaces and prospects which looks for solutions to the problems. This review aims to enable researchers to learn more about the principles and mechanisms of superhydrophobicity and perceive the new methods for creating and modifying it.

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“…However, these active anti-icing approaches have drawbacks of weight gain and extra energy input. Compared with active anti-icing approaches, passive anti-icing methods like superhydrophobic coatings have attracted extensive research interests due to their advantages of high efficiency and zero-energy input [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a durable anti-icing composite coating based on polyurethane elastomer and silica nanoparticles

Yu¹,

Liang²,

Zhang³

et al. 2022

Mater. Res. Express

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In order to design and fabricate hydrophobic, durable and anti-icing coating for aircraft, a polyurethane elastomer matrix was hydrophobically modified and incorporated with fluorinated SiO2 nanoparticles to prepare a micro/nanostructured coating. The micro/nanostructured coating with low surface energy displayed significantly improved mechanical properties and hydrophobicity, which exhibited the water contact angle of 162° as well as the sliding angle of 2°. The coating is highly stretchable, which could sustain large-scale extension, and exhibits tensile strength and elongation at break up to 16.22 MPa and 385 %, respectively. Furthermore, the coating exhibited a remarkably weak ice adhesion strength of 14.33 kPa, on which the accumulative ice is prone to fall off under natural wind and its own weight. The coating sustained long-term superhydrophobic properties and anti-icing performance even after 1000 abrasion cycles. The proposed method for the production of scalable superhydrophobic coating is cost-effective and can be applied in aerospace and automotive anti-icing systems.

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Surface modification with hierarchical CuO arrays toward a flexible, durable superhydrophobic and self-cleaning material

Cited by 97 publications

References 43 publications

Facial fabrication of superhydrophobic cellulose film with hierarchical morphologies

Facial fabrication of superhydrophobic cellulose film with hierarchical morphologies

A Review: Natural Superhydrophobic Surfaces and Applications

Fabrication of a durable anti-icing composite coating based on polyurethane elastomer and silica nanoparticles

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