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...

Full description

Bibliographic Details
Main Authors: Avijit Baidya, Sarit Kumar Das, Thalappil Pradeep
Format: Article
Language:English
Published: Wiley 2018-02-01
Series:Global Challenges
Subjects:
Online Access:https://doi.org/10.1002/gch2.201700097
_version_ 1797743718590054400
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
work_keys_str_mv AT avijitbaidya anaqueouscompositionforlubricantfreerobustslipperytransparentcoatingsondiversesubstrates
AT saritkumardas anaqueouscompositionforlubricantfreerobustslipperytransparentcoatingsondiversesubstrates
AT thalappilpradeep anaqueouscompositionforlubricantfreerobustslipperytransparentcoatingsondiversesubstrates
AT avijitbaidya aqueouscompositionforlubricantfreerobustslipperytransparentcoatingsondiversesubstrates
AT saritkumardas aqueouscompositionforlubricantfreerobustslipperytransparentcoatingsondiversesubstrates
AT thalappilpradeep aqueouscompositionforlubricantfreerobustslipperytransparentcoatingsondiversesubstrates