Rapid fabrication of a transparent superhydrophobic coating: potential application with pollution-free under construction

Wang, Jing; Wang, Han; Wang, Yanling; Wang, Mengke; Singh, Vikramjeet; Men, Xuehu; Zhang, Zhaozhu

doi:10.1007/s00339-020-03685-1

Cited by 6 publications

(4 citation statements)

References 54 publications

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“…In this procedure, a slight problem related to sustainability is constituted by using hexane, which is not considered a green solvent. A combination of silica NPs and silanes was also found in Wang et al [75] where the authors prepared a SHS by dry-brushing SiO 2 NPs functionalised with octadecyltrimethoxysilane (OTMS) dissolved in toluene on a previously prepared PDMS layer. Prepared SHS, when deposited on glass, showed transmittance of about 85% and corrosion resistance when applied on metallic substrate.…”

Section: Superhydrophobic Silicon-based Coatingsmentioning

confidence: 65%

Sustainable Materials for Liquid Repellent Coatings

Cirisano

Ferrari

2021

Coatings

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A modern environmental safety approach requires the implementation of green or sustainable strategies, such as banning or significantly lowering the presence of harmful substances on the market or in the industrial environment. To date, the majority of highly performing solutions are still based on fluorine chemistry, even with a growing effort to lower its impact. Economic costs, but also persistence, long-term degradation, and transformation in the environment can raise issues about medium- and long-term effects on human health and wildlife. Coatings with high water and oil repellence are used worldwide in daily life and in industrial and research fields, such as self-cleansing, anti-icing, and anti-biofouling. The combination of a particular geometry or surface structure and low-energy materials results in unique properties related to a range of materials in natural or synthetic categories aiming to build, when possible, a fluorine-free world. This work revises recent and key literature to propose valid alternatives to fluoro compounds in terms of water and oil repellence, as well as stability and resistance to physico-chemical agents. In this paper, natural compounds like fatty acids and waxes are addressed together with more synthetic systems like silicon-based solutions, and polymeric and inorganic nanostructured coatings. Most of the revised papers deal with topics fulfilling environmental requirements but are mainly restricted to highly repellent water and aqueous systems. Nevertheless, new and sustainable strategies for providing suitable, highly oleophobic surfaces to lower fluorine presence have been reported from a small but growing body of literature.

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Section: Superhydrophobic Silicon-based Coatingsmentioning

confidence: 65%

Sustainable Materials for Liquid Repellent Coatings

Cirisano

Ferrari

2021

Coatings

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“…Other important parameters are the effectiveness of each method with regard to the consolidant penetration depth, mechanical properties, microstructure, contact angle, water sorptivity, color [628], number of applications, time interval between applications, and differences between the amount of the product absorbed and consumed, which depend on the degree of volatility of the solvents and the absorption capacity of the stone [162]. Thus, before starting the treatments, the main recommendation is to consider the possible risk of each procedure, contemplating the aerosol effect, including the evaporation of harmful organic solvents and release of nanoparticles during the spray coating process [629], the specific electric charge of nanoparticles and the meteorological variables [630][631][632]. Table 4 summarizes the main risks of toxicity depending on the application method and recommendations of security during the handling of products based on nanomaterials.…”

Section: Preventive Measures During Conservation Treatments Of Cultur...mentioning

confidence: 99%

“…Dispersion through the air of nanoparticles: contact with the skin, inhalation. Evaporation of harmful organic solvents and release of nanoparticles [629] • Avoid the applications of powders of nanoparticles [198] • Individual protection equipment: gloves, mask (HEPA 14), and special clothing [579] • Avoid the applications of powders of nanoparticles [198] • Use specific containers for waste management [580][581][582]…”

Section: Sprayingmentioning

confidence: 99%

Application of Inorganic Nanomaterials in Cultural Heritage Conservation, Risk of Toxicity, and Preventive Measures

2023

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Nanotechnology has allowed for significant progress in architectural, artistic, archaeological, or museum heritage conservation for repairing and preventing damages produced by deterioration agents (weathering, contaminants, or biological actions). This review analyzes the current treatments using nanomaterials, including consolidants, biocides, hydrophobic protectives, mechanical resistance improvers, flame-retardants, and multifunctional nanocomposites. Unfortunately, nanomaterials can affect human and animal health, altering the environment. Right now, it is a priority to stop to analyze its advantages and disadvantages. Therefore, the aims are to raise awareness about the nanotoxicity risks during handling and the subsequent environmental exposure to all those directly or indirectly involved in conservation processes. It reports the human–body interaction mechanisms and provides guidelines for preventing or controlling its toxicity, mentioning the current toxicity research of main compounds and emphasizing the need to provide more information about morphological, structural, and specific features that ultimately contribute to understanding their toxicity. It provides information about the current documents of international organizations (European Commission, NIOSH, OECD, Countries Normative) about worker protection, isolation, laboratory ventilation control, and debris management. Furthermore, it reports the qualitative risk assessment methods, management strategies, dose control, and focus/receptor relationship, besides the latest trends of using nanomaterials in masks and gas emissions control devices, discussing their risk of toxicity.

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“…Additionally, the -CH 3 symmetric stretching vibration, the asymmetric stretching vibration and symmetric stretching vibration of -CH 2 were also observed at 2957 cm −1 , 2922 cm −1 and 2853 cm −1 , respectively. The peak at 1467 cm −1 is attributed to the -CH 3 or -CH 2 asymmetric deformation vibration [40,41], and the peak at 722 cm −1 is ascribed to the stretching vibration of -(CH 2 ) n -in long alkyl chain [42]. Furthermore, XPS was also used to characterize the element composition and corresponding chemical state.…”

Section: Transparency and Chemical Compositionmentioning

confidence: 99%

Transparent superhydrophobic film with anti-fouling and anti-scaling ability by facile method of dip-coating SiO₂ Sol

Feng

Shi

Yin

et al. 2022

Mater. Res. Express

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In the past decades, the studies of materials with transparency and durable superhydrophobicity have captured much attention because of the versatile uses in outdoor glass wall, automobile windshield and solar panel. In this paper, a superhydrophobic and transparent SiO2 film with transmittance over 44% was obtained on glass substrate with a facile method of dip-coating without further modification. The contact angle and sliding angle of water droplet on the superhydrophobic film is 163.1° and 4°, respectively. The results reveal the performance of superhydrophobicity originates from the synergistic effects of rough SiO2 structures and hydrophobic alkyl with low surface energy. The SiO2 coating exhibits self-cleaning ability, anti-fouling property and anti-scaling performances. Furthermore, the SiO2 coatings have good thermal stability and resistance ability to acid and base. The techniques adopted here have the advantage of simple process, low cost and fluorine-free treatment, which may provide an useful reference for the preparation of transparent and superhydrophobic film in practice.

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Rapid fabrication of a transparent superhydrophobic coating: potential application with pollution-free under construction

Cited by 6 publications

References 54 publications

Sustainable Materials for Liquid Repellent Coatings

Sustainable Materials for Liquid Repellent Coatings

Application of Inorganic Nanomaterials in Cultural Heritage Conservation, Risk of Toxicity, and Preventive Measures

Transparent superhydrophobic film with anti-fouling and anti-scaling ability by facile method of dip-coating SiO₂ Sol

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Rapid fabrication of a transparent superhydrophobic coating: potential application with pollution-free under construction

Cited by 6 publications

References 54 publications

Sustainable Materials for Liquid Repellent Coatings

Sustainable Materials for Liquid Repellent Coatings

Application of Inorganic Nanomaterials in Cultural Heritage Conservation, Risk of Toxicity, and Preventive Measures

Transparent superhydrophobic film with anti-fouling and anti-scaling ability by facile method of dip-coating SiO2 Sol

Contact Info

Product

Resources

About

Transparent superhydrophobic film with anti-fouling and anti-scaling ability by facile method of dip-coating SiO₂ Sol