The effect of composition and thermodynamics on the surface morphology of durable superhydrophobic polymer coatings

Tehila Nahum,1 Hanna Dodiuk,2 Samuel Kenig,2 Artee Panwar,1 Carol Barry,1 Joey Mead,1 1Department of Plastics Engineering, University of Massachusetts Lowell, Lowell, MA, USA; 2Department of Polymers and Plastics Engineering, Shenkar College of Engineering Design and Art, Ramat Gan, Israel Abstract:...

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Autores principales:	Nahum T, Dodiuk H, Kenig S, Panwar A, Barry C, Mead J
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2017
Materias:	Superhydrophobic coating durability thermodynamics silica nanoparticles morphology Medical technology R855-855.5 Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/9d00fc32fb894c34b7204c3a5f87d750
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spelling	oai:doaj.org-article:9d00fc32fb894c34b7204c3a5f87d7502021-12-02T04:18:32ZThe effect of composition and thermodynamics on the surface morphology of durable superhydrophobic polymer coatings1177-8903https://doaj.org/article/9d00fc32fb894c34b7204c3a5f87d7502017-02-01T00:00:00Zhttps://www.dovepress.com/the-effect-of-composition-and-thermodynamics-on-the-surface-morphology-peer-reviewed-article-NSAhttps://doaj.org/toc/1177-8903Tehila Nahum,1 Hanna Dodiuk,2 Samuel Kenig,2 Artee Panwar,1 Carol Barry,1 Joey Mead,1 1Department of Plastics Engineering, University of Massachusetts Lowell, Lowell, MA, USA; 2Department of Polymers and Plastics Engineering, Shenkar College of Engineering Design and Art, Ramat Gan, Israel Abstract: Durable superhydrophobic coatings were synthesized using a system of silica nanoparticles (NPs) to provide nanoscale roughness, fluorosilane to give hydrophobic chemistry, and three different polymer binders: urethane acrylate, ethyl 2-cyanoacrylate, and epoxy. Coatings composed of different binders incorporating NPs in various concentrations exhibited different superhydrophobic attributes when applied on polycarbonate (PC) and glass substrates and as a function of coating composition. It was found that the substrate surface characteristics and wettability affected the superhydrophobic characteristics of the coatings. Interfacial tension and spreading coefficient parameters (thermodynamics) of the coating components were used to predict the localization of the NPs for the different binders’ concentrations. The thermodynamic analysis of the NPs localization was in good agreement with the experimental observations. On the basis of the thermodynamic analysis and the experimental scanning electron microscopy, X-ray photoelectron spectroscopy, profilometry, and atomic force microscopy results, it was concluded that localization of the NPs on the surface was critical to provide the necessary roughness and resulting superhydrophobicity. The durability evaluated by tape testing of the epoxy formulations was the best on both glass and PC. Several coating compositions retained their superhydrophobicity after the tape test. In summary, it was concluded that thermodynamic analysis is a powerful tool to predict the roughness of the coating due to the location of NPs on the surface, and hence can be used in the design of superhydrophobic coatings. Keywords: superhydrophobic coating, durability, thermodynamics, silica nanoparticles, morphologyNahum TDodiuk HKenig SPanwar ABarry CMead JDove Medical PressarticleSuperhydrophobic coatingdurabilitythermodynamicssilica nanoparticlesdurabilitymorphologyMedical technologyR855-855.5Chemical technologyTP1-1185ENNanotechnology, Science and Applications, Vol Volume 10, Pp 53-68 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Superhydrophobic coating durability thermodynamics silica nanoparticles durability morphology Medical technology R855-855.5 Chemical technology TP1-1185
spellingShingle	Superhydrophobic coating durability thermodynamics silica nanoparticles durability morphology Medical technology R855-855.5 Chemical technology TP1-1185 Nahum T Dodiuk H Kenig S Panwar A Barry C Mead J The effect of composition and thermodynamics on the surface morphology of durable superhydrophobic polymer coatings
description	Tehila Nahum,1 Hanna Dodiuk,2 Samuel Kenig,2 Artee Panwar,1 Carol Barry,1 Joey Mead,1 1Department of Plastics Engineering, University of Massachusetts Lowell, Lowell, MA, USA; 2Department of Polymers and Plastics Engineering, Shenkar College of Engineering Design and Art, Ramat Gan, Israel Abstract: Durable superhydrophobic coatings were synthesized using a system of silica nanoparticles (NPs) to provide nanoscale roughness, fluorosilane to give hydrophobic chemistry, and three different polymer binders: urethane acrylate, ethyl 2-cyanoacrylate, and epoxy. Coatings composed of different binders incorporating NPs in various concentrations exhibited different superhydrophobic attributes when applied on polycarbonate (PC) and glass substrates and as a function of coating composition. It was found that the substrate surface characteristics and wettability affected the superhydrophobic characteristics of the coatings. Interfacial tension and spreading coefficient parameters (thermodynamics) of the coating components were used to predict the localization of the NPs for the different binders’ concentrations. The thermodynamic analysis of the NPs localization was in good agreement with the experimental observations. On the basis of the thermodynamic analysis and the experimental scanning electron microscopy, X-ray photoelectron spectroscopy, profilometry, and atomic force microscopy results, it was concluded that localization of the NPs on the surface was critical to provide the necessary roughness and resulting superhydrophobicity. The durability evaluated by tape testing of the epoxy formulations was the best on both glass and PC. Several coating compositions retained their superhydrophobicity after the tape test. In summary, it was concluded that thermodynamic analysis is a powerful tool to predict the roughness of the coating due to the location of NPs on the surface, and hence can be used in the design of superhydrophobic coatings. Keywords: superhydrophobic coating, durability, thermodynamics, silica nanoparticles, morphology
format	article
author	Nahum T Dodiuk H Kenig S Panwar A Barry C Mead J
author_facet	Nahum T Dodiuk H Kenig S Panwar A Barry C Mead J
author_sort	Nahum T
title	The effect of composition and thermodynamics on the surface morphology of durable superhydrophobic polymer coatings
title_short	The effect of composition and thermodynamics on the surface morphology of durable superhydrophobic polymer coatings
title_full	The effect of composition and thermodynamics on the surface morphology of durable superhydrophobic polymer coatings
title_fullStr	The effect of composition and thermodynamics on the surface morphology of durable superhydrophobic polymer coatings
title_full_unstemmed	The effect of composition and thermodynamics on the surface morphology of durable superhydrophobic polymer coatings
title_sort	effect of composition and thermodynamics on the surface morphology of durable superhydrophobic polymer coatings
publisher	Dove Medical Press
publishDate	2017
url	https://doaj.org/article/9d00fc32fb894c34b7204c3a5f87d750
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The effect of composition and thermodynamics on the surface morphology of durable superhydrophobic polymer coatings

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