Translucent superhydrophobic coating for murals protection

Zhou, Xihua; He, Wenbo; Ou, Junfei; Hu, Yating; Wang, Fajun; Fang, Xinzuo; Li, Wen; Amirfazli, Alidad

doi:10.1016/j.colsurfa.2024.133750

Cited by 7 publications

(4 citation statements)

References 52 publications

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“…Overall, the superhydrophobicity of the coatings can be maintained after a 200 cm linear abrasion distance. Moreover, sand impacting tests were also performed for EP/SR-5 coatings in accordance with the method of Zhou et al 48 During the tests, sand with a size of 500 μm fell from a height of 35 cm, and each 20 g was recorded as one cycle. As presented in Figure S3, the superhydrophobicity of EP/SR-5 coatings has failed after 6 cycles of tests, which is slightly less than the coatings prepared by Zhou et al For further evaluating the adhesion between EP/SR-5 coatings and substrates, the cross-cut and pull-off tests were utilized, based on the method of Fu et al 49 As performed in Figure 6e, a paint film scriber was employed to cut the surface of EP/SR-5 coatings in transverse and longitudinal lines, and each cell was controlled as 5 × 5 mm 2 .…”

Section: ■ Results and Discussionmentioning

confidence: 99%

One-Step Spraying Strategy for Fabricating Bioinspired, Graphene-Based, and Multifunctional-Integrated Coatings on Structural Steel with Good Water Repellency, Fireproofing, Anticorrosion, and Durability

Tang,

Gao,

et al. 2024

Langmuir

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Traditionally, many coatings were merely concentrated on settling the inherent fire protection problem of steel structures, while surface contamination and corrosion susceptibility should also be considered. Concurrently addressing these problems in fireproof efficiency and surface multifunctionality has become an issue of great significance in further expanding the application value in industrial and daily scenarios. Based on this condition, ecofriendly, graphene-based, and superhydrophobic coatings with multifunctional integration were constructed on steel via a one-step spraying method. The as-prepared coatings mainly consist of epoxy resin (EP), silicone resin (SR), a cyclodextrin-based flame retardant (MCDPM), expandable graphite (EG), and multilayered graphene (MG). The results demonstrate that the water contact angle (WCA) and water sliding angle (WSA) of asprepared coatings can reach 156.8 ± 1.6 and 5.8 ± 0.7°, respectively, revealing good water repellency and self-cleaning properties. The coatings can also exhibit adequate adaptability for various substrates including wood, polyurethane foam, and cotton fabrics. Besides, good durability and robustness of coatings have been also verified via acid/alkali immersion, outdoor exposure, O 2 /plasma etching, and linear abrasion tests. Simultaneously, the coatings can exhibit excellent anticorrosion capacity for steel materials via a double barrier effect. Most importantly, the coatings have exhibited the lowest backside temperature (234.5 °C) during fire impact tests, suggesting excellent fireproof and heat insulation performance. This fact can be ascribed to the conjunct action between the physical/chemical charring process of flame retardants and the remarkable thermal stability of graphene. Consequently, this article can be expected to further promote the development and application of multifunctional-integrated coatings for steel structures in more fields.

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Section: ■ Results and Discussionmentioning

confidence: 99%

One-Step Spraying Strategy for Fabricating Bioinspired, Graphene-Based, and Multifunctional-Integrated Coatings on Structural Steel with Good Water Repellency, Fireproofing, Anticorrosion, and Durability

Tang,

Gao,

et al. 2024

Langmuir

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“…Silica-based additives often enable coatings to have better acid and alkali resistance, which can enhance the weathering resistance and self-cleaning properties of superhydrophobic coatings in humid environments [29], as well as prevent freeze-thaw cycle damage caused by water infiltration into the soil [44]. Zhou et al used a semi-transparent and superhydrophobic coating composed of acrylic resin (Paraloid B72), nanosilica, and polydimethylsiloxane (PDMS) to protect murals [45], as shown in Figure 2. The composite coating produced by this method exhibits excellent hydrophobicity, with a contact angle of 165.5 • and a rolling angle of approximately 7 • .…”

Section: Water-repellent Properties Of Superhydrophobic Coatingsmentioning

confidence: 99%

Research Progress of Superhydrophobic Coatings in the Protection of Earthen Sites

Liu,

Li,

Zhou

et al. 2024

Coatings

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As an important part of human cultural heritage, earthen sites are subject to damage caused by a variety of environmental factors, such as cracking, weathering, and flooding. Due to the low mechanical strength of earthen site materials, especially in humid environments, they are susceptible to hazards like moisture penetration, freeze–thaw cycles, and biological invasion. Superhydrophobic coatings show promising potential in the protection of earthen sites, with key properties that include waterproof performance, breathability, robustness, and transparency. By exploring various material systems and preparation methods, the current state of research on the protection of building materials with superhydrophobic materials has been demonstrated, highlighting advantages in the corrosion resistance, self-cleaning, frost prevention, anti-scaling, and other aspects. At the same time, it also points out the challenges faced in the practical application of earthen site protection and the prospects for future research. These include enhancing the bonding strength between the coating and soil particles, improving durability and breathability, and developing large-scale, low-cost, and efficient coating construction techniques.

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“…The durability and robustness of superhydrophobic surfaces on materials have consistently been a focus of attention for engineers. 26,27 Zhou et al 27 dispersed PDMS, nano-SiO 2 , and acrylic resin in xylene, and formed a water-repellent protective layer on the surface of murals through a one-step spray method. The durability of this superhydrophobic coating was effectively validated through tests involving high and low temperatures and UV aging.…”

Section: ■ Introductionmentioning

confidence: 99%

“…To obtain a fluorine-free and high-performance superhydrophobic material, the researchers achieved the elastomer’s superhydrophobic surface (the WCA reached 152°) by wrinkling graphene to improve its physical interface. , However, this superhydrophobic film was prone to damage when subjected to elastomer deformation, resulting in the loss of surface hydrophobic function. The durability and robustness of superhydrophobic surfaces on materials have consistently been a focus of attention for engineers. , Zhou et al dispersed PDMS, nano-SiO 2 , and acrylic resin in xylene, and formed a water-repellent protective layer on the surface of murals through a one-step spray method. The durability of this superhydrophobic coating was effectively validated through tests involving high and low temperatures and UV aging.…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic Tensile Designability of Silicone Rubber Composites

Han,

Zhan,

Zhang

et al. 2024

Langmuir

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Silicone rubber has broad applications in the field of industrial engineering due to its stable physical and chemical properties. However, the superhydrophobic properties, of silicone rubber, especially large deformation superhydrophobic properties, were not satisfactory for many harsh application environments and complex engineering structures. Here, we report the preparation of superhydrophobic tensile designable silicone rubber composites by a mixed deposition process that included powder deposition and smoke deposition. The infrared test showed that the deposited powder from silicone rubber combustion was mainly composed of SiO 2 and short chain siloxane. The mixed deposited surface with a rich micro-nanostructure, which was the key to the formation of superhydrophobic properties. The water contact angle (WCA) and sliding angle (SA) of coating surface could reach 157.6°and 5°± 1°, respectively, and the tensile designability of superhydrophobic surface is closely related to the prestretched process. In addition, bounce tests, high temperature tests, and solvent resistance tests showed the application potential of modified silicone rubber composites in the field of engineering.

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Translucent superhydrophobic coating for murals protection

Cited by 7 publications

References 52 publications

One-Step Spraying Strategy for Fabricating Bioinspired, Graphene-Based, and Multifunctional-Integrated Coatings on Structural Steel with Good Water Repellency, Fireproofing, Anticorrosion, and Durability

One-Step Spraying Strategy for Fabricating Bioinspired, Graphene-Based, and Multifunctional-Integrated Coatings on Structural Steel with Good Water Repellency, Fireproofing, Anticorrosion, and Durability

Research Progress of Superhydrophobic Coatings in the Protection of Earthen Sites

Superhydrophobic Tensile Designability of Silicone Rubber Composites

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