Ultra dynamic water repellency and anti-icing performance of superhydrophobic ZnO surface on the printed circuit board (PCB)

Yin, Zuozhu; Feng, Yuqing; Zhou, Dongpeng; Xue, Mingshan; Luo, Yidan; Zhang, Hong; Xie, Chan

doi:10.1016/j.cplett.2021.138558

Cited by 57 publications

(9 citation statements)

References 39 publications

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“…Commonly, the d-spacing for its hkl planes can occur by the probable sample deformation, which results in slight shifts in the peak positions and the lattice strain. This strain is induced by the dislocation-like defects, while the size broadening results from the shrinkage of coherent scattering volume [ 80 , 81 ].…”

Section: Resultsmentioning

confidence: 99%

The coupled WO3-AgBr nanocatalyst, part II: Synthesis, characterization, and the boosted photocatalytic activity towards metronidazole in an aqueous solution

Shabanian-Broujeni,

Nezamzadeh-Ejhieh

2024

Heliyon

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Section: Resultsmentioning

confidence: 99%

The coupled WO3-AgBr nanocatalyst, part II: Synthesis, characterization, and the boosted photocatalytic activity towards metronidazole in an aqueous solution

Shabanian-Broujeni,

Nezamzadeh-Ejhieh

2024

Heliyon

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“…It was shown that superhydrophobic surfaces have an icing-delay ability due to their special structure and properties, which are of great importance for practical applications [ 54 , 55 , 56 ]. The freezing of liquids on superhydrophobic surfaces is a complex process.…”

Section: Resultsmentioning

confidence: 99%

Heat Stability and Icing Delay on Superhydrophobic Coatings in Facile One Step

2022

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Superhydrophobic coatings are limited to poor durability and a tedious preparation process. In this work, an efficient, eco-friendly, and cost-effective sol-gel method is developed for preparing superhydrophobic surfaces using an all-in-one suspension composed of methyltrimethoxysilane (MTMS), nano silicon dioxide (SiO2) particles, and micron zinc oxide (ZnO) particles. Superhydrophobic coatings with a contact angle (CA) up to 153.9° and a sliding angle (SA) of about 3.0° are prepared on Q235 steel substrates using MTMS 5 mL, 0.8 g of nano SiO2, and 0.2 g of micron ZnO. The morphology of the superhydrophobic coating is characterized by scanning electron microscopy (SEM), and the surface is covered with a micro- and nano-scaled hierarchical rough structure. A series of tests are conducted, including long-term stability tests and thermostability tests. The CAs are all above 150°, and the SAs are below 6.3°, indicating the excellent static stability of the prepared superhydrophobic coatings. Moreover, the CA of the superhydrophobic coating remains above 152° after 120 h of UV exposure, and the time for a water droplet to freeze on the surface of the superhydrophobic coating is 18 times of the bare Q235 steel, indicating that the superhydrophobic coating exhibits good resistance to UV radiation and icing-delay properties.

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“…Figure 13a shows the results of water CA and SA on the surface of the coating after being subjected to a corrosive bath with different pH values for 3 h. The results showed that the solution with a PH of 2-13 did not cause excessive fluctuations in CA of the coating, but the coating was sensitive to solutions with pH values of 1 and 14. This is because the wettability of the heterogeneous surface can be illustrated by the Cassie-Baxter equation [58,59]:…”

Section: Mechanical Stability Of the Coatingmentioning

confidence: 99%

Preparation and Characterization of Biomimetic SiO2-TiO2-PDMS Composite Hydrophobic Coating with Self-Cleaning Properties for Wall Protection Applications

Xia

Liu

et al. 2023

Coatings

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Superhydrophobic surfaces have great potential for self-cleaning, anti-icing, and drag-reducing characteristics because of their water repellent property. This study demonstrates the potential application of coatings to protect architectures from detrimental atmospheric effects via a self-cleaning approach. In this research, a SiO2-TiO2-PDMS composite coating was prepared on the surface of building walls by the sol-gel method. Tetraethyl orthosilicate (TEOS) and titanium isopropoxide (TTIP) were used as inorganic precursors, and polydimethylsiloxane (PDMS) was used as low surface energy substances. The effects of TEOS and PDMS content on microstructure, wettability, and self-cleaning performance of coating wall surfaces were investigated by conducting various tests, including scanning electron microscopy (SEM), X-ray energy spectroscopy (EDS), angle measurement, and Fourier transform infrared spectroscopy (FTIR). The results indicated that hydrolysis and condensation reactions of TEOS, TTIP, and PDMS were performed on the surface of the substrates, leading to a micro- and nano-structure similar to the surface of lotus leaves. When the molar ratio of PDMS to TEOS was 1:5, the static contact angle of the coating reached a maximum of 152.6°. At this point, the coated surface was able to resist the adhesion of particle pollutants and liquid pollutants, which could keep the walls clean and possess a good ability of self-cleaning. In conclusion, SiO2-TiO2-PDMS composite coating is potentially useful in wall protection applications with its hydrophobic and environmentally friendly superhydrophobic properties.

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Ultra dynamic water repellency and anti-icing performance of superhydrophobic ZnO surface on the printed circuit board (PCB)

Cited by 57 publications

References 39 publications

The coupled WO3-AgBr nanocatalyst, part II: Synthesis, characterization, and the boosted photocatalytic activity towards metronidazole in an aqueous solution

The coupled WO3-AgBr nanocatalyst, part II: Synthesis, characterization, and the boosted photocatalytic activity towards metronidazole in an aqueous solution

Heat Stability and Icing Delay on Superhydrophobic Coatings in Facile One Step

Preparation and Characterization of Biomimetic SiO2-TiO2-PDMS Composite Hydrophobic Coating with Self-Cleaning Properties for Wall Protection Applications

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