Rapid Microwave-Assisted Synthesis of Organo-Modified Nanostructured Silica Coatings with Tunable Water-Repellence Properties

A simple method to fabricate organo-modified silane coatings for water-repellent surface modification was proposed, by using a microwave sol-gel synthesis of hybrid materials. Low-cost fluorine-free tetraethoxysilane (TEOS) and dodecyltriethoxysilane (DDTES) were used as silane derivatives. The orga...

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Autores principales:	Catalina Ioana Gȋfu, Bogdan Trică, Claudia Mihaela Ninciuleanu, Cătălin Ionuţ Mihăescu, Cristian Petcu, Mihaela Cristina Lite, Alina Popescu, Mihai Anastasescu, Sorina Nicoleta Voicu, Maria Antonia Tanase, Ludmila Otilia Cinteza
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	organo-modified silica highly hydrophobic coatings contact angle nanostructured silica films non-fluorinated silica coatings Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/1764d7cf93cb410895c01d83831e1e05
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spelling	oai:doaj.org-article:1764d7cf93cb410895c01d83831e1e052021-11-25T17:15:59ZRapid Microwave-Assisted Synthesis of Organo-Modified Nanostructured Silica Coatings with Tunable Water-Repellence Properties10.3390/coatings111113192079-6412https://doaj.org/article/1764d7cf93cb410895c01d83831e1e052021-10-01T00:00:00Zhttps://www.mdpi.com/2079-6412/11/11/1319https://doaj.org/toc/2079-6412A simple method to fabricate organo-modified silane coatings for water-repellent surface modification was proposed, by using a microwave sol-gel synthesis of hybrid materials. Low-cost fluorine-free tetraethoxysilane (TEOS) and dodecyltriethoxysilane (DDTES) were used as silane derivatives. The organo-modified silica coatings were prepared by the drop-casting method and were characterized by UV-VIS, FTIR spectroscopy, and AFM and SEM microscopy. The morphology of the film show the existence of submicrometer scale roughness due to the aggregation of modified silica nanoparticles. Contact angles of water and diiodomethane on surfaces modified with as prepared nanostructured film were determined in order to assess the hydrophobic and oleophobic properties. The TEOS/DDTES ratio was proved to be a crucial factor in tuning the wettability properties. The results suggest that significant increase of hydrophobicity could be achieved by using non-fluorinated cost-effective silica nanomaterials produced with a rapid ecofriendly method.Catalina Ioana GȋfuBogdan TricăClaudia Mihaela NinciuleanuCătălin Ionuţ MihăescuCristian PetcuMihaela Cristina LiteAlina PopescuMihai AnastasescuSorina Nicoleta VoicuMaria Antonia TanaseLudmila Otilia CintezaMDPI AGarticleorgano-modified silicahighly hydrophobic coatingscontact anglenanostructured silica filmsnon-fluorinated silica coatingsEngineering (General). Civil engineering (General)TA1-2040ENCoatings, Vol 11, Iss 1319, p 1319 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	organo-modified silica highly hydrophobic coatings contact angle nanostructured silica films non-fluorinated silica coatings Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	organo-modified silica highly hydrophobic coatings contact angle nanostructured silica films non-fluorinated silica coatings Engineering (General). Civil engineering (General) TA1-2040 Catalina Ioana Gȋfu Bogdan Trică Claudia Mihaela Ninciuleanu Cătălin Ionuţ Mihăescu Cristian Petcu Mihaela Cristina Lite Alina Popescu Mihai Anastasescu Sorina Nicoleta Voicu Maria Antonia Tanase Ludmila Otilia Cinteza Rapid Microwave-Assisted Synthesis of Organo-Modified Nanostructured Silica Coatings with Tunable Water-Repellence Properties
description	A simple method to fabricate organo-modified silane coatings for water-repellent surface modification was proposed, by using a microwave sol-gel synthesis of hybrid materials. Low-cost fluorine-free tetraethoxysilane (TEOS) and dodecyltriethoxysilane (DDTES) were used as silane derivatives. The organo-modified silica coatings were prepared by the drop-casting method and were characterized by UV-VIS, FTIR spectroscopy, and AFM and SEM microscopy. The morphology of the film show the existence of submicrometer scale roughness due to the aggregation of modified silica nanoparticles. Contact angles of water and diiodomethane on surfaces modified with as prepared nanostructured film were determined in order to assess the hydrophobic and oleophobic properties. The TEOS/DDTES ratio was proved to be a crucial factor in tuning the wettability properties. The results suggest that significant increase of hydrophobicity could be achieved by using non-fluorinated cost-effective silica nanomaterials produced with a rapid ecofriendly method.
format	article
author	Catalina Ioana Gȋfu Bogdan Trică Claudia Mihaela Ninciuleanu Cătălin Ionuţ Mihăescu Cristian Petcu Mihaela Cristina Lite Alina Popescu Mihai Anastasescu Sorina Nicoleta Voicu Maria Antonia Tanase Ludmila Otilia Cinteza
author_facet	Catalina Ioana Gȋfu Bogdan Trică Claudia Mihaela Ninciuleanu Cătălin Ionuţ Mihăescu Cristian Petcu Mihaela Cristina Lite Alina Popescu Mihai Anastasescu Sorina Nicoleta Voicu Maria Antonia Tanase Ludmila Otilia Cinteza
author_sort	Catalina Ioana Gȋfu
title	Rapid Microwave-Assisted Synthesis of Organo-Modified Nanostructured Silica Coatings with Tunable Water-Repellence Properties
title_short	Rapid Microwave-Assisted Synthesis of Organo-Modified Nanostructured Silica Coatings with Tunable Water-Repellence Properties
title_full	Rapid Microwave-Assisted Synthesis of Organo-Modified Nanostructured Silica Coatings with Tunable Water-Repellence Properties
title_fullStr	Rapid Microwave-Assisted Synthesis of Organo-Modified Nanostructured Silica Coatings with Tunable Water-Repellence Properties
title_full_unstemmed	Rapid Microwave-Assisted Synthesis of Organo-Modified Nanostructured Silica Coatings with Tunable Water-Repellence Properties
title_sort	rapid microwave-assisted synthesis of organo-modified nanostructured silica coatings with tunable water-repellence properties
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/1764d7cf93cb410895c01d83831e1e05
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Rapid Microwave-Assisted Synthesis of Organo-Modified Nanostructured Silica Coatings with Tunable Water-Repellence Properties

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