Mechanically robust superhydrophobic and superoleophobic coatings derived by sol–gel method

Wu, Xinghua; Fu, Qiuyun; Kumar, Divya; Ho, Jeffrey Weng Chye; Kanhere, Pushkar D.; Zhou, Huanfu; Chen, Zhong

doi:10.1016/j.matdes.2015.10.053

Cited by 140 publications

(78 citation statements)

References 41 publications

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“…Coating surface image (FESEM). (a) RFOTE‐SiO 2 : SiO 2 = 1:5; (b) RFOTE‐SiO 2 :SiO 2 = 2:4; (c) RFOTE‐SiO 2 : SiO 2 = 3:3; (d) RFOTE‐SiO 2 : SiO 2 = 6:0…”

Section: Anti‐ice System and De‐icing Systemmentioning

confidence: 99%

“…Hsieh et al 86 combines spheroidal silicon and fluoropolymer to create the water and oil repellency coating. Wu et al 87 also produced a wear-resistant and water-resistant superhydrophobic coating for blade surfaces. It is experimentally determined that the ratio of RFOTE-SiO 2 and SiO 2 is 2:4 which has the best hydrophobic oleophobicity and FESEM image is in Figure 20.…”

Section: Special Coatingmentioning

confidence: 99%

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A review on ice detection technology and ice elimination technology for wind turbine

et al. 2019

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Blade icing can affect wind turbines to generate electricity. In severe cases, 30% of power generation is lost in a year, and safety problems in the vicinity of wind power plants are also caused. Researchers have designed anti-icing and de-icing technologies to reduce these effects, and excellent ice-detecting devices are a prerequisite for using anti-icing and de-icing technologies. Ultrasonic attenuation technology can effectively and reliably detect the presence of ice without affecting the aerodynamic performance of the blade, providing a reliable guarantee for anti-icing and de-icing systems. Deicing and anti-icing systems are divided into active and passive, active heating blades are still the most effective anti-icing and de-icing methods, but their energy consumption is too high. Although there are many existing de-icing methods, there are not many practical uses. This article introduces them separately and lists their advantages and disadvantages. The use of ultrasonic anti-icing and de-icing is an economical and reliable means that has been proven to be used for anti-icing and de-icing of blades. However, under normal circumstances, a single anti-icing de-icing system cannot completely solve the problem of icing of the blades. This paper suggests using both ultrasonic and hydrophobic coatings to cope with more icing conditions. K E Y W O R D Santi-icing and deicing technology, fan blade, hydrophobic coating, ice detection technology, ultrasonic deicing | INTRODUCTIONWith the rapid development of the world economy, lots of countries are increasingly demanding energy resources. Owing to release a lot of greenhouse gases, chemicals and toxins substances from the combustion of the fossil fuels such as coal and oil, 1 People began to look for renewable energy to provide energy consumption, such as wind energy, 2-4 hydrogen energy, 5-7 solar energy, 8-10 biogas and biomass energy. 11-15 With the wind power growing rapidly, generate electricity by using wind turbines is economical and environmentally friendly. 16 As can be seen in Figure 1, China's total installed capacity of wind turbines in 2016 is much higher than in other countries.China has the largest wind power market in the country, and the installed capacity of wind power is growing steadily year by year. The high density of air is conducive to the development of wind energy resources in cold regions. Figure 2 shows wind resource changes in different seasons. The wind speed from June to August is significantly lower than other months. There are also data showing that wind resources in cold regions are 10% higher than other regions. 17,18

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“…Coating surface image (FESEM). (a) RFOTE‐SiO 2 : SiO 2 = 1:5; (b) RFOTE‐SiO 2 :SiO 2 = 2:4; (c) RFOTE‐SiO 2 : SiO 2 = 3:3; (d) RFOTE‐SiO 2 : SiO 2 = 6:0…”

Section: Anti‐ice System and De‐icing Systemmentioning

confidence: 99%

Section: Special Coatingmentioning

confidence: 99%

A review on ice detection technology and ice elimination technology for wind turbine

et al. 2019

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“…To control the reaction and hydrolysis rates, water is added to the molecular precursor in the presence of an acid or basic catalyst [7]. The sol-gel method has been widely applied in the production of various materials ranging from purely inorganic materials to organic and biological systems, that allow the development of biosensors used in medical diagnosis [9,10], superhydrophobic and superficial superphobic studies [11], superconductors [12,13], fuel cells [14,15], ceramic compounds [16], dental ceramics [17] and other materials, in a wide range of compositions. Sol-gel technology has found great potential for applications in the scientific and technological fields because the processes can be developed at room temperature, the combination of properties and the enormous advantages inherent in greater homogeneity and purity, easier control in size and form of the final material, and greater manageability [9,18].…”

Section: Introductionmentioning

confidence: 99%

Biocompatibility of bismuth silicate coatings deposited on 316L stainless steel by sol-gel process

Bautista-Ruiz

Olaya-Flórez

Chaparro

2017

Rev. Fac. Ing. Univ. Antioquia

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Bismuth silicate, (BSO) thin films have been fabricated by sol-gel process.The stable sol was synthesized by using bismuth nitrate (III) pentahydrate and tetraethyl orthosilicate (TEOS). The films were deposited by spin-coating at 1500 rpm on Stainless Steel 316L. The films were characterized by Atomic Force Microscopy (AFM), Scanning Electron Microscopy (SEM), X-ray diffraction (XRD) besides the measured of the films thickness. This study aimed to evaluate the cell adhesion and cellular proliferation of osteoblast cells on BSO thin films and substrate 316L by MTT assay. It is concluded that the growth of osteoblasts is homogeneous in the surface of the coatings indicating that the medium offered by the films does not present active cytotoxicity and exceed in large number the level of cellular growth compared to Stainless Steel. RESUMEN:Películas delgadas de silicato de bismuto (BSO) se han fabricado mediante el proceso sol-gel. El sol estable se sintetizó utilizando nitrato de bismuto (III) pentahidrato y tetraetil-ortosilicato (TEOS). Las películas fueron depositadas a 1500 rpm mediante la técnica de centrifugado. Los recubrimientos se caracterizaron por microscopía de fuerza atómica (AFM), microscopía electrónica de barrido (SEM), difracción de rayos-X (DRX) y se midió el espesor de las películas. El objetivo de este estudio fue evaluar la adhesión y la proliferación en células de osteoblastos, mediante el ensayo MMT, al incubarse sobre películas BSO en sustratos de 316L. Se concluyó que el crecimiento de los osteoblastos es homogéneo en la superficie de las películas, indicando que el medio ofrecido por los recubrimientos no presenta actividad citotóxica y favorece los niveles de crecimiento celular en comparación con los resultados obtenidos para los sustratos de acero inoxidable.

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“…Hence, the coatings stability is poor. In most cases, those coatings are difficult to apply in manufacture and daily life due to its cost and poor stability . Therefore, it is desirable to develop a simple strategy for the preparation of superamphiphobic surfaces with stability to solve the problems.…”

Section: Introductionmentioning

confidence: 99%

“…But the previous reported superamphiphobic surface of the hard steel is very scarce and their stability is undesirable. Moreover, it is difficult to apply practical production because of its poor stability . Herein, we focused on solving the durability problem through combining chemical deposition and sol–gel methods to consolidate the coating on the premise of fabricating superamphiphobic surface.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Robust CuO/TiO₂ Superamphiphobic Steel Surface through Chemical Deposition and Sol–Gel Methods

et al. 2016

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The authors report a novel method of fabricating CuO/TiO 2 superamphiphobic surface through chemical deposition and sol-gel on Q235 steel. After modification with FAS-17, the water, glycerol, and cooking oil contact angles of CuO/TiO 2 coating surpass 150 the corresponding sliding angles are all less 10 . Furthermore, the as-prepared superamphiphobic surfaces can survive 500 times, 400 cm abrasion distance under 2.2 kPa pressure without losing superhydrophobicity. In addition, outstanding corrosion resistance and low adhesion are obtained. The successful fabrication of a robust, good anti-corrosion superamphiphobic surface can be a prospective applied in metal materials.

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Mechanically robust superhydrophobic and superoleophobic coatings derived by sol–gel method

Cited by 140 publications

References 41 publications

A review on ice detection technology and ice elimination technology for wind turbine

A review on ice detection technology and ice elimination technology for wind turbine

Biocompatibility of bismuth silicate coatings deposited on 316L stainless steel by sol-gel process

Preparation of Robust CuO/TiO₂ Superamphiphobic Steel Surface through Chemical Deposition and Sol–Gel Methods

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Mechanically robust superhydrophobic and superoleophobic coatings derived by sol–gel method

Cited by 140 publications

References 41 publications

A review on ice detection technology and ice elimination technology for wind turbine

A review on ice detection technology and ice elimination technology for wind turbine

Biocompatibility of bismuth silicate coatings deposited on 316L stainless steel by sol-gel process

Preparation of Robust CuO/TiO2 Superamphiphobic Steel Surface through Chemical Deposition and Sol–Gel Methods

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Product

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Preparation of Robust CuO/TiO₂ Superamphiphobic Steel Surface through Chemical Deposition and Sol–Gel Methods