Fabrication of superhydrophobic silica-based surfaces with high transmittance by using tetraethoxysilane precursor and different polymeric species

Chang, Kuei‐Chien; Wu, Kuan-Yu; Tsai, Yen–Ling; Lu, Juhng-shu; Chen, Hui

doi:10.1016/j.apsusc.2009.06.041

Cited by 27 publications

(5 citation statements)

References 32 publications

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“…These later characteristics are required if a surface is to exhibit true self-cleaning properties. Porous structures [21][22][23][24][25] have also been used to prepare superhydrophobic surfaces. Tian et al prepared porous superhydrophobic coating using TEOS and re-RF, and surface roughness was controlled by the weight ratio of re-RF to silica sol [21].…”

Section: Introductionmentioning

confidence: 99%

Porous superhydrophobic silica films by sol–gel process

Latthe

Imai

Ganesan³

et al. 2010

Microporous and Mesoporous Materials

101

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Section: Introductionmentioning

confidence: 99%

Porous superhydrophobic silica films by sol–gel process

Latthe

Imai

Ganesan³

et al. 2010

Microporous and Mesoporous Materials

101

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“…The wettability is a relevant solid surface characteristic property [ 21 , 22 ]. Surfaces with a water contact angle (WCA) higher than 150° and a water sliding angle (WSA) less than 10°, defined as superhydrophobic surfaces, have recently attracted intense interest.…”

Section: Introductionmentioning

confidence: 99%

Effect of Chemical Surface Texturing on the Superhydrophobic Behavior of Micro–Nano-Roughened AA6082 Surfaces

et al. 2021

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Superhydrophobic surfaces on 6082 aluminum alloy substrates are tailored by low-cost chemical surface treatments coupled to a fluorine-free alkyl-silane coating deposition. In particular, three different surface treatments are investigated: boiling water, HF/HCl, and HNO3/HCl etching. The results show that the micro-nano structure and the wetting behavior are greatly influenced by the applied surface texturing treatment. After silanization, all the textured surfaces exhibit a superhydrophobic behavior. The highest water contact angle (WCA, ≈180°) is obtained by HF/HCl etching. Interestingly, the water sliding angle (WSA) is affected by the anisotropic surface characteristics. Indeed, for the HF/HCl and the HNO3/HCl samples, the WSA in the longitudinal direction is lower than the transversal one, which slightly affects the self-cleaning capacity. The results point out that the superhydrophobic behavior of the aluminum alloys surface can be easily tailored by performing a two-step procedure: (i) roughening treatment and (ii) surface chemical silanization. Considering these promising results, the aim of further studies will be to improve the knowledge and optimize the process parameters in order to tailor a superhydrophobic surface with an effective performance in terms of stability and durability.

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“…In addition, due to the strong hydrogen bond interaction between the C=C(CH 3 )COO(CH 2 ) 3 group of MPMS and the Si-OH group of silica sol, the hybridization process of MPMS and silica sol could be promoted. 39 Therefore, it was easy to obtain the smooth surface (as shown in Fig. 9b), and the CA of the film was decreased.…”

Section: Influence Of Surface Morphologymentioning

confidence: 97%

Preparation of transparent ultrahydrophobic silica film by sol–gel process

2010

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Transparent ultrahydrophobic films were synthesized by sol-gel process with organic silicones modified into silica sol and cured under UV irradiation. The effects of hydrolysis temperature, hydrolysis time, molar ratio of organic silicone to silica sol, and surface morphology on the hydrophobicity of the films were discussed in detail using FTIR spectroscopy, scanning electron microscopy (SEM), AFM, optical transmission, and contact angle measurement, respectively. The AFM and SEM images indicated that the surface roughness enhanced the hydrophobicity of the films. The results revealed that methyl-trimethoxysilane (MTMS)-modified silica film prepared at 50°C for 2 h with an MTMS/silica sol molar ratio of 1:10 had a very high contact angle (130°). However, the higher hydrolysis temperature and longer reaction time might have accelerated the self-condensation of silanol and decreased the contact angle of the films.

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Fabrication of superhydrophobic silica-based surfaces with high transmittance by using tetraethoxysilane precursor and different polymeric species

Cited by 27 publications

References 32 publications

Porous superhydrophobic silica films by sol–gel process

Porous superhydrophobic silica films by sol–gel process

Effect of Chemical Surface Texturing on the Superhydrophobic Behavior of Micro–Nano-Roughened AA6082 Surfaces

Preparation of transparent ultrahydrophobic silica film by sol–gel process

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