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Large-Scale Fabrication of Graded Convex Structure for Superhydrophobic Coating Inspired by Nature

The addition of toxic substances and poor durability severely limit the market applications of superhydrophobic coatings in the oil–water-separation industry, anti-icing, and self-cleaning surfaces. In order to solve the above problems, a stable, strong, fluorine-free superhydrophobic coating was pr...

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Detalles Bibliográficos
Autores principales: Wang, Yu, Huang, Jin-Tian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8948839/
https://www.ncbi.nlm.nih.gov/pubmed/35329632
http://dx.doi.org/10.3390/ma15062179
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author Wang, Yu
Huang, Jin-Tian
author_facet Wang, Yu
Huang, Jin-Tian
author_sort Wang, Yu
collection PubMed
description The addition of toxic substances and poor durability severely limit the market applications of superhydrophobic coatings in the oil–water-separation industry, anti-icing, and self-cleaning surfaces. In order to solve the above problems, a stable, strong, fluorine-free superhydrophobic coating was prepared according to natural inspiration. In this study, polydivinylbenzene (PDVB) was produced by the hydrothermal method, and micro-nanoparticle clusters composed of PDVB particles of different sizes were prepared by controlling the ratio of raw materials, which was then attached to the substrate surface by a simple spraying technique. A rough coating with a lotus-leaf-like layered protruding structure was constructed by depositing particle clusters of different sizes. In the end, the prepared coating showed attractive superhydrophobicity, with a maximum contact angle (CA) that reached up to 160°. In addition, the coating had long-lasting superhydrophobic properties in various environments, such as common liquid and acidic and alkaline solutions. Moreover, in the oil–water-separation process, the superhydrophobic filter paper was still able to obtain a separation efficiency of more than 85% after being used 50 times, and it maintained a contact angle of >150°. At the same time, the coating had excellent dye resistance and self-cleaning performance.
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spelling pubmed-89488392022-03-26 Large-Scale Fabrication of Graded Convex Structure for Superhydrophobic Coating Inspired by Nature Wang, Yu Huang, Jin-Tian Materials (Basel) Article The addition of toxic substances and poor durability severely limit the market applications of superhydrophobic coatings in the oil–water-separation industry, anti-icing, and self-cleaning surfaces. In order to solve the above problems, a stable, strong, fluorine-free superhydrophobic coating was prepared according to natural inspiration. In this study, polydivinylbenzene (PDVB) was produced by the hydrothermal method, and micro-nanoparticle clusters composed of PDVB particles of different sizes were prepared by controlling the ratio of raw materials, which was then attached to the substrate surface by a simple spraying technique. A rough coating with a lotus-leaf-like layered protruding structure was constructed by depositing particle clusters of different sizes. In the end, the prepared coating showed attractive superhydrophobicity, with a maximum contact angle (CA) that reached up to 160°. In addition, the coating had long-lasting superhydrophobic properties in various environments, such as common liquid and acidic and alkaline solutions. Moreover, in the oil–water-separation process, the superhydrophobic filter paper was still able to obtain a separation efficiency of more than 85% after being used 50 times, and it maintained a contact angle of >150°. At the same time, the coating had excellent dye resistance and self-cleaning performance. MDPI 2022-03-16 /pmc/articles/PMC8948839/ /pubmed/35329632 http://dx.doi.org/10.3390/ma15062179 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Yu
Huang, Jin-Tian
Large-Scale Fabrication of Graded Convex Structure for Superhydrophobic Coating Inspired by Nature
title Large-Scale Fabrication of Graded Convex Structure for Superhydrophobic Coating Inspired by Nature
title_full Large-Scale Fabrication of Graded Convex Structure for Superhydrophobic Coating Inspired by Nature
title_fullStr Large-Scale Fabrication of Graded Convex Structure for Superhydrophobic Coating Inspired by Nature
title_full_unstemmed Large-Scale Fabrication of Graded Convex Structure for Superhydrophobic Coating Inspired by Nature
title_short Large-Scale Fabrication of Graded Convex Structure for Superhydrophobic Coating Inspired by Nature
title_sort large-scale fabrication of graded convex structure for superhydrophobic coating inspired by nature
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8948839/
https://www.ncbi.nlm.nih.gov/pubmed/35329632
http://dx.doi.org/10.3390/ma15062179
work_keys_str_mv AT wangyu largescalefabricationofgradedconvexstructureforsuperhydrophobiccoatinginspiredbynature
AT huangjintian largescalefabricationofgradedconvexstructureforsuperhydrophobiccoatinginspiredbynature