An Aqueous Composition for Lubricant‐Free, Robust, Slippery, Transparent Coatings on Diverse Substrates
Abstract Transparent, durable coating materials that show excellent liquid repellency, both water and oil, have multiple applications in science and technology. In this perspective, herein, a simple aqueous chemical formulation is developed that provides a transparent slippery coating without any lu...
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Format: | Article |
Language: | English |
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Wiley
2018-02-01
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Series: | Global Challenges |
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Online Access: | https://doi.org/10.1002/gch2.201700097 |
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author | Avijit Baidya Sarit Kumar Das Thalappil Pradeep |
author_facet | Avijit Baidya Sarit Kumar Das Thalappil Pradeep |
author_sort | Avijit Baidya |
collection | DOAJ |
description | Abstract Transparent, durable coating materials that show excellent liquid repellency, both water and oil, have multiple applications in science and technology. In this perspective, herein, a simple aqueous chemical formulation is developed that provides a transparent slippery coating without any lubricating fluids, on various substrates extended over large areas. The coatings repel liquids having a range of polarity (solvents) as well as viscosity (oils and emulsions) and withstand mechanical strains. Exceptional optical transparency of 99% in the range of 350–900 nm along with high stability even after cyclic temperature, frost, exposure to sunlight, and corrosive liquids like aqua regia treatments, makes this material unique and widens its applicability in different fields. Besides, being a liquid, it can be coated on an array of substrates independent of their underlying topography, by various easily available techniques. Aside from these interesting properties, the coating is demonstrated as a potential solution contributing to the remediation of one of the biggest global issues of tomorrow: affordable drinking water. The coated surface can capture 5 L of water per day per m2 at 27 °C when exposed to an atmosphere of 63% relative humidity. |
first_indexed | 2024-03-12T14:59:28Z |
format | Article |
id | doaj.art-5e7224a9b58547d79849333cfaabdbab |
institution | Directory Open Access Journal |
issn | 2056-6646 |
language | English |
last_indexed | 2024-03-12T14:59:28Z |
publishDate | 2018-02-01 |
publisher | Wiley |
record_format | Article |
series | Global Challenges |
spelling | doaj.art-5e7224a9b58547d79849333cfaabdbab2023-08-14T09:40:32ZengWileyGlobal Challenges2056-66462018-02-0122n/an/a10.1002/gch2.201700097An Aqueous Composition for Lubricant‐Free, Robust, Slippery, Transparent Coatings on Diverse SubstratesAvijit Baidya0Sarit Kumar Das1Thalappil Pradeep2DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE) Department of Chemistry Indian Institute of Technology Madras Chennai 600 036 IndiaDepartment of Mechanical Engineering Indian Institute of Technology Madras Chennai 600036 IndiaDST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE) Department of Chemistry Indian Institute of Technology Madras Chennai 600 036 IndiaAbstract Transparent, durable coating materials that show excellent liquid repellency, both water and oil, have multiple applications in science and technology. In this perspective, herein, a simple aqueous chemical formulation is developed that provides a transparent slippery coating without any lubricating fluids, on various substrates extended over large areas. The coatings repel liquids having a range of polarity (solvents) as well as viscosity (oils and emulsions) and withstand mechanical strains. Exceptional optical transparency of 99% in the range of 350–900 nm along with high stability even after cyclic temperature, frost, exposure to sunlight, and corrosive liquids like aqua regia treatments, makes this material unique and widens its applicability in different fields. Besides, being a liquid, it can be coated on an array of substrates independent of their underlying topography, by various easily available techniques. Aside from these interesting properties, the coating is demonstrated as a potential solution contributing to the remediation of one of the biggest global issues of tomorrow: affordable drinking water. The coated surface can capture 5 L of water per day per m2 at 27 °C when exposed to an atmosphere of 63% relative humidity.https://doi.org/10.1002/gch2.201700097aqueous suspensionatmospheric water capturecomposite solutionliquid repellencetransparent coatings |
spellingShingle | Avijit Baidya Sarit Kumar Das Thalappil Pradeep An Aqueous Composition for Lubricant‐Free, Robust, Slippery, Transparent Coatings on Diverse Substrates Global Challenges aqueous suspension atmospheric water capture composite solution liquid repellence transparent coatings |
title | An Aqueous Composition for Lubricant‐Free, Robust, Slippery, Transparent Coatings on Diverse Substrates |
title_full | An Aqueous Composition for Lubricant‐Free, Robust, Slippery, Transparent Coatings on Diverse Substrates |
title_fullStr | An Aqueous Composition for Lubricant‐Free, Robust, Slippery, Transparent Coatings on Diverse Substrates |
title_full_unstemmed | An Aqueous Composition for Lubricant‐Free, Robust, Slippery, Transparent Coatings on Diverse Substrates |
title_short | An Aqueous Composition for Lubricant‐Free, Robust, Slippery, Transparent Coatings on Diverse Substrates |
title_sort | aqueous composition for lubricant free robust slippery transparent coatings on diverse substrates |
topic | aqueous suspension atmospheric water capture composite solution liquid repellence transparent coatings |
url | https://doi.org/10.1002/gch2.201700097 |
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