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Current Status and Future Prospects of Applying Bioinspired Superhydrophobic Materials for Conservation of Stone Artworks

1
CNR-Institute of Geosciences and Earth Resources, Via Giorgio La Pira 4, 50121 Florence, Italy
2
Department of Chemistry, University of Florence, Via della Lastruccia 3-13, 50019 Sesto Fiorentino (FI), Italy
*
Author to whom correspondence should be addressed.
Coatings 2020, 10(4), 353; https://doi.org/10.3390/coatings10040353
Received: 6 February 2020 / Revised: 2 April 2020 / Accepted: 2 April 2020 / Published: 4 April 2020
(This article belongs to the Special Issue Advanced Coatings for Cultural Heritage Preservation)
The development of innovative materials is one of the most important focus areas in heritage conservation research. Eligible materials can not only protect the physical and chemical integrity of artworks but also preserve their artistic and aesthetic features. Recently, as one of the hot research topics in materials science, biomimetic superhydrophobic materials have gradually attracted the attention of conservation scientists due to their unique properties. In fact, ultra-repellent materials are particularly suitable for hydrophobization treatments on outdoor artworks. Owing to their excellent hydrophobicity, superhydrophobic materials can effectively prevent the absorption and penetration of liquid water as well as the condensation of water vapor, thus greatly relieving water-induced decay phenomena. Moreover, in the presence of liquid water, the superhydrophobic surfaces equipped with a self-cleaning property can clean the dirt and dust deposited spontaneously, thereby restoring the artistic features simultaneously. In the present paper, besides the basic principles of wetting on solid surfaces, materials, and methods reported for preparing bioinspired ultra-repellent materials, the recently proposed materials for art conservation are also introduced and critically reviewed, along with a discussion on the droplet impact and durability of the artificial superhydrophobic surfaces. Lastly, the current status and the problems encountered in practical application are also pointed out, and the focus of future research is presented as well. View Full-Text
Keywords: superhydrophobic coatings; self-cleaning; stone artworks; conservation; future prospect superhydrophobic coatings; self-cleaning; stone artworks; conservation; future prospect
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MDPI and ACS Style

Cao, Y.; Salvini, A.; Camaiti, M. Current Status and Future Prospects of Applying Bioinspired Superhydrophobic Materials for Conservation of Stone Artworks. Coatings 2020, 10, 353. https://doi.org/10.3390/coatings10040353

AMA Style

Cao Y, Salvini A, Camaiti M. Current Status and Future Prospects of Applying Bioinspired Superhydrophobic Materials for Conservation of Stone Artworks. Coatings. 2020; 10(4):353. https://doi.org/10.3390/coatings10040353

Chicago/Turabian Style

Cao, Yijian, Antonella Salvini, and Mara Camaiti. 2020. "Current Status and Future Prospects of Applying Bioinspired Superhydrophobic Materials for Conservation of Stone Artworks" Coatings 10, no. 4: 353. https://doi.org/10.3390/coatings10040353

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