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Organic-inorganic composite nanocoatings with superhydrophobicity and thermal stability

Purpose: This paper aims to investigate the thermal stability and hydrophobicity of difference alkyl chain of silanes with silicon (Si) micro- and nanoparticles. Design/methodology/approach: Sol-gel methods have been used to design superhydrophobic glass substrates through surface modification by us...

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Main Authors:	Syafiq, A., Pandey, A.K., Balakrishnan, Vengadaesvaran, Shahabuddin, Syed, Abd Rahim, Nasrudin
Format:	Article
Published:	Emerald Publishing 2024
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.um.edu.my/44945/
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spelling	my.um.eprints.449452024-04-30T02:17:16Z http://eprints.um.edu.my/44945/ Organic-inorganic composite nanocoatings with superhydrophobicity and thermal stability Syafiq, A. Pandey, A.K. Balakrishnan, Vengadaesvaran Shahabuddin, Syed Abd Rahim, Nasrudin TA Engineering (General). Civil engineering (General) Purpose: This paper aims to investigate the thermal stability and hydrophobicity of difference alkyl chain of silanes with silicon (Si) micro- and nanoparticles. Design/methodology/approach: Sol-gel methods have been used to design superhydrophobic glass substrates through surface modification by using low-surface-energy Isooctyl trimethoxysilane (ITMS) and Ethyl trimethoxysilane (ETMS) solution. Hierarchical double-rough scale solid surface was built by Si micro- and nanoparticles to enhance the surface roughness. The prepared sol was applied onto glass substrate using dip-coating method and was dried at control temperature of 400°C inside the tube furnace. Findings: The glass substrate achieved the water contact angle as high as 154 ± 2° and 150.4 ± 2° for Si/ITMS and Si/ETMS films, respectively. The Si/ITMS and Si/ETMS also were equipped with low sliding angle as low as 3° and 5°, respectively. The Si micro- and nanoparticles in the coating system have created nanopillars between them, which will suspend the water droplets. Both superhydrophobic coatings have showed good stability against high temperature up to 200°C as there are no changes in WCA shown by both coatings. Si/ITMS film sustains its superhydrophobicity after impacting with further temperature up to 400°C and turns hydrophobic state at 450°C. Research limitations/implications: Findings will be useful to develop superhydrophobic coatings with high thermal stability. Practical implications: Sol method provides a suitable medium for the combination of organic-inorganic network to achieve high hydrophobicity with optimum surface roughness. Originality/value: Application of different alkyl chain groups of silane resin blending with micro- and nanoparticles of Si pigments develops superhydrophobic coatings with high thermal stability. © 2018, Emerald Publishing Limited. Emerald Publishing 2024 Article PeerReviewed Syafiq, A. and Pandey, A.K. and Balakrishnan, Vengadaesvaran and Shahabuddin, Syed and Abd Rahim, Nasrudin (2024) Organic-inorganic composite nanocoatings with superhydrophobicity and thermal stability. Pigment and Resin Technology, 53 (1). 10 – 16. ISSN 0369-9420, DOI https://doi.org/10.1108/PRT-04-2018-0038 <https://doi.org/10.1108/PRT-04-2018-0038>. 10.1108/PRT-04-2018-0038
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Syafiq, A. Pandey, A.K. Balakrishnan, Vengadaesvaran Shahabuddin, Syed Abd Rahim, Nasrudin Organic-inorganic composite nanocoatings with superhydrophobicity and thermal stability
description	Purpose: This paper aims to investigate the thermal stability and hydrophobicity of difference alkyl chain of silanes with silicon (Si) micro- and nanoparticles. Design/methodology/approach: Sol-gel methods have been used to design superhydrophobic glass substrates through surface modification by using low-surface-energy Isooctyl trimethoxysilane (ITMS) and Ethyl trimethoxysilane (ETMS) solution. Hierarchical double-rough scale solid surface was built by Si micro- and nanoparticles to enhance the surface roughness. The prepared sol was applied onto glass substrate using dip-coating method and was dried at control temperature of 400°C inside the tube furnace. Findings: The glass substrate achieved the water contact angle as high as 154 ± 2° and 150.4 ± 2° for Si/ITMS and Si/ETMS films, respectively. The Si/ITMS and Si/ETMS also were equipped with low sliding angle as low as 3° and 5°, respectively. The Si micro- and nanoparticles in the coating system have created nanopillars between them, which will suspend the water droplets. Both superhydrophobic coatings have showed good stability against high temperature up to 200°C as there are no changes in WCA shown by both coatings. Si/ITMS film sustains its superhydrophobicity after impacting with further temperature up to 400°C and turns hydrophobic state at 450°C. Research limitations/implications: Findings will be useful to develop superhydrophobic coatings with high thermal stability. Practical implications: Sol method provides a suitable medium for the combination of organic-inorganic network to achieve high hydrophobicity with optimum surface roughness. Originality/value: Application of different alkyl chain groups of silane resin blending with micro- and nanoparticles of Si pigments develops superhydrophobic coatings with high thermal stability. © 2018, Emerald Publishing Limited.
format	Article
author	Syafiq, A. Pandey, A.K. Balakrishnan, Vengadaesvaran Shahabuddin, Syed Abd Rahim, Nasrudin
author_facet	Syafiq, A. Pandey, A.K. Balakrishnan, Vengadaesvaran Shahabuddin, Syed Abd Rahim, Nasrudin
author_sort	Syafiq, A.
title	Organic-inorganic composite nanocoatings with superhydrophobicity and thermal stability
title_short	Organic-inorganic composite nanocoatings with superhydrophobicity and thermal stability
title_full	Organic-inorganic composite nanocoatings with superhydrophobicity and thermal stability
title_fullStr	Organic-inorganic composite nanocoatings with superhydrophobicity and thermal stability
title_full_unstemmed	Organic-inorganic composite nanocoatings with superhydrophobicity and thermal stability
title_sort	organic-inorganic composite nanocoatings with superhydrophobicity and thermal stability
publisher	Emerald Publishing
publishDate	2024
url	http://eprints.um.edu.my/44945/
_version_	1797906860009848832
score	13.211869

Organic-inorganic composite nanocoatings with superhydrophobicity and thermal stability

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